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4i6j

A ubiquitin ligase-substrate complex

Method: X-RAY DIFFRACTION Dmax: 111.1 Å Quality: GOOD
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Cryptochrome-2

Mus musculus

UniProt Q9R194

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric（3） Consistent with protein copy count Chain A； UniProt 1–544 Fragment：UNP residues 1-544 F-box/LRR-repeat protein 3 × 1 （Q9UKT7） S-phase kinase-associated protein 1 × 1 （P63208） X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；0.2M ammonium citrate, 13-14% PEG3350 7% Acetonitrile, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.70 Å R-free 0.265

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 4I6J Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
4I6E A vertebrate cryptochrome Deposited 2012-11-29 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 1–512（512 aa） Fragment：UNP residues 1-512
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.1M MES-imadzole, pH6.5, 7.2% PEG8000, 20% Ethylene glycol (v/v), 0.03M NaF,NaBr,NaI, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.287
4I6G a vertebrate cryptochrome with FAD Deposited 2012-11-29 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 1–512（512 aa） Fragment：UNP residues 1-512
Not recorded FAD FLAVIN-ADENINE DINUCLEOTIDE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.1M MES-imadzole, pH 6.5, 7.2% PEG8000, 20% ethylene glyco(v/v), 0.03M NaF,NaBr,NaI, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.20 Å R-free 0.238
4I6G a vertebrate cryptochrome with FAD Deposited 2012-11-29 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain B 1–512（512 aa） Fragment：UNP residues 1-512
Not recorded FAD FLAVIN-ADENINE DINUCLEOTIDE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.1M MES-imadzole, pH 6.5, 7.2% PEG8000, 20% ethylene glyco(v/v), 0.03M NaF,NaBr,NaI, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.20 Å R-free 0.238
4MLP Mammalian cryptochrome in complex with a small molecule competitor of its ubiquitin ligase Deposited 2013-09-06 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain C 1–512（512 aa） Fragment：photolyase homology region UNP residues 1-512
Not recorded 2CX N-[(2S)-3-(9H-carbazol-9-yl)-2-hydroxypropyl]-N-(furan-2-ylmethyl)methanesulfonamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.1 M MES and 4-5% PEG8K, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.94 Å R-free 0.217
4MLP Mammalian cryptochrome in complex with a small molecule competitor of its ubiquitin ligase Deposited 2013-09-06 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 1–512（512 aa） Fragment：photolyase homology region UNP residues 1-512
Not recorded 2CX N-[(2S)-3-(9H-carbazol-9-yl)-2-hydroxypropyl]-N-(furan-2-ylmethyl)methanesulfonamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.1 M MES and 4-5% PEG8K, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.94 Å R-free 0.217
4MLP Mammalian cryptochrome in complex with a small molecule competitor of its ubiquitin ligase Deposited 2013-09-06 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain B 1–512（512 aa） Fragment：photolyase homology region UNP residues 1-512
Not recorded 2CX N-[(2S)-3-(9H-carbazol-9-yl)-2-hydroxypropyl]-N-(furan-2-ylmethyl)methanesulfonamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.1 M MES and 4-5% PEG8K, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.94 Å R-free 0.217
4MLP Mammalian cryptochrome in complex with a small molecule competitor of its ubiquitin ligase Deposited 2013-09-06 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain D 1–512（512 aa） Fragment：photolyase homology region UNP residues 1-512
Not recorded 2CX N-[(2S)-3-(9H-carbazol-9-yl)-2-hydroxypropyl]-N-(furan-2-ylmethyl)methanesulfonamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；0.1 M MES and 4-5% PEG8K, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.94 Å R-free 0.217
4U8H Crystal Structure of Mammalian Period-Cryptochrome Complex Deposited 2014-08-03 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 1–510（510 aa） Fragment：Photolyase/cryptochrome alpha/beta domain, residues 1-510
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.1 M HEPES, 0.2 M NaCl, 15% PEG3350
Resolution 2.80 Å R-free 0.278
4U8H Crystal Structure of Mammalian Period-Cryptochrome Complex Deposited 2014-08-03 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain C 1–510（510 aa） Fragment：Photolyase/cryptochrome alpha/beta domain, residues 1-510
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.1 M HEPES, 0.2 M NaCl, 15% PEG3350
Resolution 2.80 Å R-free 0.278
6KX8 Crystal structure of mouse Cryptochrome 2 in complex with TH301 compound Deposited 2019-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 1–512（512 aa）
Not recorded DYX 1-(4-chlorophenyl)-N-[2-(4-methoxyphenyl)-5,5-bis(oxidanylidene)-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]cyclopentane-1-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；100 mM HEPES-NaOH pH 7.0, 15% (w/v) PEG3350, 200 mM NaCl
Resolution 2.25 Å R-free 0.219
6KX8 Crystal structure of mouse Cryptochrome 2 in complex with TH301 compound Deposited 2019-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain B 1–512（512 aa）
Not recorded DYX 1-(4-chlorophenyl)-N-[2-(4-methoxyphenyl)-5,5-bis(oxidanylidene)-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]cyclopentane-1-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；100 mM HEPES-NaOH pH 7.0, 15% (w/v) PEG3350, 200 mM NaCl
Resolution 2.25 Å R-free 0.219
7D0N Crystal structure of mouse CRY2 apo form Deposited 2020-09-11 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 1–512（512 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；0.1 M HEPES pH 7.0, 100 mM NaCl, 10% w/v PEG 3350
Resolution 2.80 Å R-free 0.293
7EJ9 Alternative crystal structure of mouse Cryptochrome 2 in complex with TH301 compound Deposited 2021-04-01 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric
Chain A 1–512（512 aa）
Chain B 1–512（512 aa）
Not recorded DYX 1-(4-chlorophenyl)-N-[2-(4-methoxyphenyl)-5,5-bis(oxidanylidene)-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]cyclopentane-1-carboxamide × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；0.1 M HEPES-NaOH pH 7.0, 0.35 M NaCl, 18% (w/v) PEG 3350
Resolution 2.60 Å R-free 0.234
7V8Y Crystal structure of mouse CRY2 in complex with SHP1703 compound Deposited 2021-08-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 1–512（512 aa）
Not recorded 5YH 1-[(2R)-3-[3,6-bis(fluoranyl)carbazol-9-yl]-2-oxidanyl-propyl]imidazolidin-2-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；0.1 M HEPES pH 7.0, 0.15 M NaCl, 12% PEG 3350
Resolution 1.90 Å R-free 0.206
7V8Z Crystal structure of mouse CRY2 in complex with SHP656 compound Deposited 2021-08-23 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 1–512（512 aa）
Not recorded 5YH 1-[(2R)-3-[3,6-bis(fluoranyl)carbazol-9-yl]-2-oxidanyl-propyl]imidazolidin-2-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；0.1 M HEPES pH 7.0, 0.1 M NaCl, 16% PEG 3350
Resolution 1.95 Å R-free 0.202

9 other PDB entries and 15 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CRY2_MOUSE
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–544； UniProt 1–544

F-box/LRR-repeat protein 3

Homo sapiens

UniProt Q9UKT7

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric（3） Consistent with protein copy count Chain B； UniProt 1–428 Not recorded Cryptochrome-2 × 1 （Q9R194） S-phase kinase-associated protein 1 × 1 （P63208） X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；0.2M ammonium citrate, 13-14% PEG3350 7% Acetonitrile, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.70 Å R-free 0.265

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence
UniProt name FBXL3_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–428； UniProt 1–428

S-phase kinase-associated protein 1

Homo sapiens

UniProt P63208

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric（3） Consistent with protein copy count Chain C； UniProt 1–163 Not recorded Cryptochrome-2 × 1 （Q9R194） F-box/LRR-repeat protein 3 × 1 （Q9UKT7） X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；0.2M ammonium citrate, 13-14% PEG3350 7% Acetonitrile, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.70 Å R-free 0.265

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 4I6J Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1FQV Insights into scf ubiquitin ligases from the structure of the skp1-skp2 complex Deposited 2000-09-06 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 1–162（162 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG 4000, Tris-Cl, ammonium acetate, DTT, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.80 Å R-free 0.314
1FQV Insights into scf ubiquitin ligases from the structure of the skp1-skp2 complex Deposited 2000-09-06 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain D 1–162（162 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG 4000, Tris-Cl, ammonium acetate, DTT, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.80 Å R-free 0.314
1FQV Insights into scf ubiquitin ligases from the structure of the skp1-skp2 complex Deposited 2000-09-06 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain F 1–162（162 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG 4000, Tris-Cl, ammonium acetate, DTT, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.80 Å R-free 0.314
1FQV Insights into scf ubiquitin ligases from the structure of the skp1-skp2 complex Deposited 2000-09-06 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain H 1–162（162 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG 4000, Tris-Cl, ammonium acetate, DTT, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.80 Å R-free 0.314
1FQV Insights into scf ubiquitin ligases from the structure of the skp1-skp2 complex Deposited 2000-09-06 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 5 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain J 1–162（162 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG 4000, Tris-Cl, ammonium acetate, DTT, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.80 Å R-free 0.314
1FQV Insights into scf ubiquitin ligases from the structure of the skp1-skp2 complex Deposited 2000-09-06 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 6 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain L 1–162（162 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG 4000, Tris-Cl, ammonium acetate, DTT, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.80 Å R-free 0.314
1FQV Insights into scf ubiquitin ligases from the structure of the skp1-skp2 complex Deposited 2000-09-06 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 7 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain N 1–162（162 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG 4000, Tris-Cl, ammonium acetate, DTT, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.80 Å R-free 0.314
1FQV Insights into scf ubiquitin ligases from the structure of the skp1-skp2 complex Deposited 2000-09-06 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 8 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain P 1–162（162 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG 4000, Tris-Cl, ammonium acetate, DTT, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.80 Å R-free 0.314
1FS1 INSIGHTS INTO SCF UBIQUITIN LIGASES FROM THE STRUCTURE OF THE SKP1-SKP2 COMPLEX Deposited 2000-09-08 Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain B 1–147（147 aa） Fragment：RESIDUES 1-147
Chain D 1–147（147 aa） Fragment：RESIDUES 1-147
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；277 K；PEG 1500, sodium acetate, ammonium acetate, DTT, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.80 Å R-free 0.274
1FS2 INSIGHTS INTO SCF UBIQUITIN LIGASES FROM THE STRUCTURE OF THE SKP1-SKP2 COMPLEX Deposited 2000-09-08 Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain B 1–146（146 aa） Fragment：RESIDUES 1-37; 43-147
Chain D 1–146（146 aa） Fragment：RESIDUES 1-37; 43-147
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.90 Å R-free 0.287
1LDK Structure of the Cul1-Rbx1-Skp1-F boxSkp2 SCF Ubiquitin Ligase Complex Deposited 2002-04-08 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain D 1–139（139 aa）
Not recorded ZN ZINC ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；peg4k, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 3.10 Å R-free 0.331
1LDK Structure of the Cul1-Rbx1-Skp1-F boxSkp2 SCF Ubiquitin Ligase Complex Deposited 2002-04-08 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain D 1–139（139 aa）
Not recorded ZN ZINC ION × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；peg4k, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 3.10 Å R-free 0.331
1P22 Structure of a beta-TrCP1-Skp1-beta-catenin complex: destruction motif binding and lysine specificity on the SCFbeta-TrCP1 ubiquitin ligase Deposited 2003-04-14 Different construct Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 1–162（162 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.8；298 K；PEG4000, sodium citrate, Bis-Tris Propane, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Resolution 2.95 Å R-free 0.286
29HG Cryo-EM structure of the CUL1-RBX1-SKP1-FBXO22 SCF ubiquition ligase in complex with NSD2 via UNC10088 Deposited 2026-03-11 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain C 1–163（163 aa）
Not recorded A1J20 ~{N}-cyclopropyl-~{N}-[[4-[[2-(6-oxidanylhexanoyl)-1~{H}-isoquinolin-6-yl]carbamoyl]phenyl]methyl]-3-oxidanylidene-4~{H}-1,4-benzoxazine-7-carboxamide × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.00 Å
29HH Cryo-EM structure of the CUL1-RBX1-SKP1-FBXO22 SCF ubiquition ligase in complex with NSD2, UNC10088 and Bach1 Deposited 2026-03-11 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain C 1–163（163 aa）
Not recorded A1J20 ~{N}-cyclopropyl-~{N}-[[4-[[2-(6-oxidanylhexanoyl)-1~{H}-isoquinolin-6-yl]carbamoyl]phenyl]methyl]-3-oxidanylidene-4~{H}-1,4-benzoxazine-7-carboxamide × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.20 Å
29HI Cryo-EM structure of the CUL1-RBX1-SKP1-FBXO22 SCF ubiquition ligase in complex with NSD2 via UNC10415667 Deposited 2026-03-11 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain C 1–163（163 aa）
Not recorded A1J21 4-[[cyclopropyl-[(~{Z})-2-methyl-4-(5-oxidanylidene-2~{H}-1,4-oxazin-3-yl)but-3-enoyl]amino]methyl]-~{N}-[3-[2-[[4-(hydroxymethyl)phenyl]carbonyl-methyl-amino]ethyl]phenyl]benzamide × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.90 Å
2ASS Crystal structure of the Skp1-Skp2-Cks1 complex Deposited 2005-08-24 Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 1–159（159 aa）
Mutation：P1A PO4 PHOSPHATE ION × 3 BEN BENZAMIDINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；277 K；BTP, sodium/potassium phosphate, benzamidine, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 3.00 Å R-free 0.242
2ASS Crystal structure of the Skp1-Skp2-Cks1 complex Deposited 2005-08-24 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain A 1–159（159 aa）
Mutation：P1A PO4 PHOSPHATE ION × 6 BEN BENZAMIDINE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；277 K；BTP, sodium/potassium phosphate, benzamidine, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 3.00 Å R-free 0.242
2ASS Crystal structure of the Skp1-Skp2-Cks1 complex Deposited 2005-08-24 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 3 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain A 1–159（159 aa）
Mutation：P1A PO4 PHOSPHATE ION × 6 BEN BENZAMIDINE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；277 K；BTP, sodium/potassium phosphate, benzamidine, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 3.00 Å R-free 0.242
2AST Crystal structure of Skp1-Skp2-Cks1 in complex with a p27 peptide Deposited 2005-08-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain A 1–159（159 aa）
Not recorded BEN BENZAMIDINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG8K, 5% benzamidine, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.221
2AST Crystal structure of Skp1-Skp2-Cks1 in complex with a p27 peptide Deposited 2005-08-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain A 1–159（159 aa）
Not recorded BEN BENZAMIDINE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG8K, 5% benzamidine, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.221
2AST Crystal structure of Skp1-Skp2-Cks1 in complex with a p27 peptide Deposited 2005-08-24 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 3 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain A 1–159（159 aa）
Not recorded BEN BENZAMIDINE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；PEG8K, 5% benzamidine, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.221
2E31 Structural basis for selection of glycosylated substrate by SCFFbs1 ubiquitin ligase Deposited 2006-11-20 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 0–162（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.7；293 K；2.0M ammonium sulphate, 0.1M sodium citrate, 30mM chitobiose, pH 5.7, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.40 Å R-free 0.291
2E32 Structural basis for selection of glycosylated substrate by SCFFbs1 ubiquitin ligase Deposited 2006-11-20 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 0–162（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.7；293 K；2.0M ammonium sulphate, 0.1M sodium citrate, 30mM chitobiose, pH 5.7, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 3.52 Å R-free 0.299
2E32 Structural basis for selection of glycosylated substrate by SCFFbs1 ubiquitin ligase Deposited 2006-11-20 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain D 0–162（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.7；293 K；2.0M ammonium sulphate, 0.1M sodium citrate, 30mM chitobiose, pH 5.7, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 3.52 Å R-free 0.299
2OVP Structure of the Skp1-Fbw7 complex Deposited 2007-02-14 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 1–163（163 aa） Fragment：residues 1-147
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；294 K；0.1 M HEPES-Na, 1.2 M Li2SO4, 7.5% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.90 Å R-free 0.268
2OVP Structure of the Skp1-Fbw7 complex Deposited 2007-02-14 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain A 1–163（163 aa） Fragment：residues 1-147
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；294 K；0.1 M HEPES-Na, 1.2 M Li2SO4, 7.5% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.90 Å R-free 0.268
2OVQ Structure of the Skp1-Fbw7-CyclinEdegC complex Deposited 2007-02-14 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 1–163（163 aa） Fragment：residues 1-147
Not recorded SO4 SULFATE ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9；294 K；0.1 M Bicine, 1.4 M Li2SO4, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.60 Å R-free 0.266
2OVQ Structure of the Skp1-Fbw7-CyclinEdegC complex Deposited 2007-02-14 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain A 1–163（163 aa） Fragment：residues 1-147
Not recorded SO4 SULFATE ION × 32 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9；294 K；0.1 M Bicine, 1.4 M Li2SO4, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.60 Å R-free 0.266
2OVR Structure of the Skp1-Fbw7-CyclinEdegN complex Deposited 2007-02-14 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 1–163（163 aa） Fragment：residues 1-147
Not recorded SO4 SULFATE ION × 12 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；294 K；0.1 M Hepes-Na, 1.12 M Li2SO4, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.50 Å R-free 0.251
3L2O Structure-Based Mechanism of Dimerization-Dependent Ubiquitination by the SCFFbx4 Ubiquitin Ligase Deposited 2009-12-15 Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 1–163（163 aa）
Mutation：deletion: 38-43, 70-81; P2A; insertion: GGSG between 69 and 82 No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；277 K；1.5-2 M sodium chloride, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K
Resolution 2.80 Å R-free 0.295
3L2O Structure-Based Mechanism of Dimerization-Dependent Ubiquitination by the SCFFbx4 Ubiquitin Ligase Deposited 2009-12-15 Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain A 1–163（163 aa）
Mutation：deletion: 38-43, 70-81; P2A; insertion: GGSG between 69 and 82 No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；277 K；1.5-2 M sodium chloride, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K
Resolution 2.80 Å R-free 0.295
3WSO Crystal structure of the Skp1-FBG3 complex Deposited 2014-03-18 Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；288 K；8% 2-propanol, 16% PEG4000, 0.1M Na PIPES , pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 288K
Resolution 2.60 Å R-free 0.266
5IBK Skp1-F-box in complex with a ubiquitin variant Deposited 2016-02-22 Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 1–69（69 aa） Fragment：;UNP resdiues 1-61(deletion 37-42) and 70-163 linked by LINKER GGSG,UNP resdiues 1-61(deletion 37-42) and 70-163 linked by LINKER GGSG ;
Chain A 82–163（82 aa） Fragment：;UNP resdiues 1-61(deletion 37-42) and 70-163 linked by LINKER GGSG,UNP resdiues 1-61(deletion 37-42) and 70-163 linked by LINKER GGSG ;
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；293 K；100 mM Acetate pH 4.5, 12% PEG 4000, 15% glyerol
Resolution 2.50 Å R-free 0.240
5IBK Skp1-F-box in complex with a ubiquitin variant Deposited 2016-02-22 Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain D 1–69（69 aa） Fragment：;UNP resdiues 1-61(deletion 37-42) and 70-163 linked by LINKER GGSG,UNP resdiues 1-61(deletion 37-42) and 70-163 linked by LINKER GGSG ;
Chain D 82–163（82 aa） Fragment：;UNP resdiues 1-61(deletion 37-42) and 70-163 linked by LINKER GGSG,UNP resdiues 1-61(deletion 37-42) and 70-163 linked by LINKER GGSG ;
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；293 K；100 mM Acetate pH 4.5, 12% PEG 4000, 15% glyerol
Resolution 2.50 Å R-free 0.240
5JH5 Structural Basis for the Hierarchical Assembly of the Core of PRC1.1 Deposited 2016-04-20 Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain B 2–163（162 aa） Fragment：Residues 2-163
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.25；298 K；100 mM HEPES, 10 % 2-methyl-2,4-pentanediol, 10 mM NaCl
Resolution 2.55 Å R-free 0.257
5K35 Structure of the Legionella effector, AnkB, in complex with human Skp1 Deposited 2016-05-19 Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；0.2 M trimethylamine N-oxide, 0.1 M Tris pH 8.5, 20% (w/v) PEG 2000 MME
Resolution 2.85 Å R-free 0.275
5V4B Crystal structure of the Skp1-FBXW7-DISC1 complex Deposited 2017-03-08 Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 1–69（69 aa）
Chain A 82–163（82 aa）
Not recorded SO4 SULFATE ION × 9 IMD IMIDAZOLE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；277.15 K；100 mM Hepes, 1.2M lithium sulfate
Resolution 2.60 Å R-free 0.219
5V4B Crystal structure of the Skp1-FBXW7-DISC1 complex Deposited 2017-03-08 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain A 1–69（69 aa）
Chain A 82–163（82 aa）
Not recorded SO4 SULFATE ION × 36 IMD IMIDAZOLE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；277.15 K；100 mM Hepes, 1.2M lithium sulfate
Resolution 2.60 Å R-free 0.219
5VZT Crystal structure of the Skp1-FBXO31 complex Deposited 2017-05-29 Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 1–163（163 aa）
Mutation：P2A ZN ZINC ION × 1 DTT 2,3-DIHYDROXY-1,4-DITHIOBUTANE × 1 PO4 PHOSPHATE ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.3；277 K；100 mM sodium citrate (pH 5.3), 0.27 M ammonium acetate, 13-17% MPD, 0.02 M CaCl2
Resolution 2.70 Å R-free 0.242
5VZT Crystal structure of the Skp1-FBXO31 complex Deposited 2017-05-29 Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain C 1–163（163 aa）
Mutation：P2A ZN ZINC ION × 1 DTT 2,3-DIHYDROXY-1,4-DITHIOBUTANE × 1 PO4 PHOSPHATE ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.3；277 K；100 mM sodium citrate (pH 5.3), 0.27 M ammonium acetate, 13-17% MPD, 0.02 M CaCl2
Resolution 2.70 Å R-free 0.242
5VZU Crystal structure of the Skp1-FBXO31-cyclin D1 complex Deposited 2017-05-29 Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 1–163（163 aa）
Mutation：P2A ZN ZINC ION × 1 PO4 PHOSPHATE ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.3；277 K；100 mM sodium citrate (pH 5.3), 0.27 M ammonium acetate, 13-17% MPD, 0.02 M CaCl2
Resolution 2.70 Å R-free 0.233
5VZU Crystal structure of the Skp1-FBXO31-cyclin D1 complex Deposited 2017-05-29 Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain C 1–163（163 aa）
Mutation：P2A ZN ZINC ION × 1 PO4 PHOSPHATE ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.3；277 K；100 mM sodium citrate (pH 5.3), 0.27 M ammonium acetate, 13-17% MPD, 0.02 M CaCl2
Resolution 2.70 Å R-free 0.233
5XYL Solution Structure of Skp1 from Homo sapiens Deposited 2017-07-09 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric
Chain A 1–163（163 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.5；298 K；Ionic strength (raw mmCIF value) 100；Pressure 1
NMR sample composition 20 mM sodium phosphate, 100 mM sodium chloride, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 20 mM sodium phosphate, 100 mM sodium chloride, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 20 mM sodium phosphate, 100 mM sodium chloride, 100% D2O | 100% D2O
Resolution not provided
6BVA Ubiquitin Variant (UbV.Fl10.1) bound to a human Skp1-Fbl10 fragment complex. Deposited 2017-12-12 Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain D 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；0.1 M Hepes pH 7.5, 0.2 M calcium chloride, 18% (w/v) PEG 6000
Resolution 2.66 Å R-free 0.263
6BVA Ubiquitin Variant (UbV.Fl10.1) bound to a human Skp1-Fbl10 fragment complex. Deposited 2017-12-12 Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain C 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；0.1 M Hepes pH 7.5, 0.2 M calcium chloride, 18% (w/v) PEG 6000
Resolution 2.66 Å R-free 0.263
6BYH Ubiquitin Variant (UbV.Fl11.1) bound to a human Skp1-Fbl11 fragment complex. Deposited 2017-12-20 Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；293 K；0.1 M PCTP buffer pH6, 25% (w/v) PEG 1500
Resolution 2.61 Å R-free 0.294
6BYH Ubiquitin Variant (UbV.Fl11.1) bound to a human Skp1-Fbl11 fragment complex. Deposited 2017-12-20 Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；293 K；0.1 M PCTP buffer pH6, 25% (w/v) PEG 1500
Resolution 2.61 Å R-free 0.294
6BYH Ubiquitin Variant (UbV.Fl11.1) bound to a human Skp1-Fbl11 fragment complex. Deposited 2017-12-20 Different experimental conditions Different structure-quality metrics Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain G 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；293 K；0.1 M PCTP buffer pH6, 25% (w/v) PEG 1500
Resolution 2.61 Å R-free 0.294
6C16 Ubiquitin variant (UbV.Fbl10.1) bound to a human Skp1-Fbl11 fragment complex. Deposited 2018-01-04 Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；293 K；0.1 M malic acid pH 4.5, 0.15 M sodium chloride, 27% (w/v) PEG3350
Resolution 3.27 Å R-free 0.317
6C16 Ubiquitin variant (UbV.Fbl10.1) bound to a human Skp1-Fbl11 fragment complex. Deposited 2018-01-04 Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；293 K；0.1 M malic acid pH 4.5, 0.15 M sodium chloride, 27% (w/v) PEG3350
Resolution 3.27 Å R-free 0.317
6M90 Monophosphorylated pSer33 b-Catenin peptide, b-TrCP/Skp1, NRX-2776 ternary complex Deposited 2018-08-22 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 2–163（162 aa）
Not recorded J91 2-(2-fluorophenoxy)-3-{[2-oxo-6-(trifluoromethyl)-1,2-dihydropyridine-3-carbonyl]amino}benzoic acid × 2 PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；8% PEG 4000 0.1M BTP pH 5.5
Resolution 2.05 Å R-free 0.212
6M91 Monophosphorylated pSer33 b-Catenin peptide, b-TrCP/Skp1, NRX-103094 ternary complex Deposited 2018-08-22 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 2–163（162 aa）
Not recorded J97 3-({4-[(2,6-dichlorophenyl)sulfanyl]-2-oxo-6-(trifluoromethyl)-1,2-dihydropyridine-3-carbonyl}amino)benzoic acid × 1 PO4 PHOSPHATE ION × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；8% PEG 4000 0.1M BTP pH 5.5
Resolution 2.40 Å R-free 0.216
6M92 Monophosphorylated pSer33 b-Catenin peptide, b-TrCP/Skp1, NRX-2663 ternary complex Deposited 2018-08-22 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 2–163（162 aa）
Not recorded J8V 3-{[2-oxo-4-phenoxy-6-(trifluoromethyl)-1,2-dihydropyridine-3-carbonyl]amino}benzoic acid × 1 PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；8% PEG 4000 0.1M BTP pH 5.5
Resolution 2.35 Å R-free 0.221
6M93 Monophosphorylated pSer33 b-Catenin peptide, b-TrCP/Skp1, NRX-1933 ternary complex Deposited 2018-08-22 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 2–163（162 aa）
Not recorded J8Y 2-oxo-N-[3-(1H-tetrazol-5-yl)phenyl]-6-(trifluoromethyl)-1,2-dihydropyridine-3-carboxamide × 1 PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；8% PEG 4000 0.1M BTP pH 5.5
Resolution 2.50 Å R-free 0.230
6M94 Monophosphorylated pSer33 b-Catenin peptide bound to b-TrCP/Skp1 Complex Deposited 2018-08-22 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 2–163（162 aa）
Not recorded PO4 PHOSPHATE ION × 1 DMS DIMETHYL SULFOXIDE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；8% PEG 4000 0.1M BTP pH5.5
Resolution 2.70 Å R-free 0.238
6O60 Crystal structure of GGTase3-FBXL2-SKP1 complex Deposited 2019-03-04 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain D 1–163（163 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；0.1 M MES pH6.0, 20%-22% (v/v) PEG 400
Resolution 2.50 Å R-free 0.247
6TTU Ubiquitin Ligation to substrate by a cullin-RING E3 ligase at 3.7A resolution: NEDD8-CUL1-RBX1 N98R-SKP1-monomeric b-TRCP1dD-IkBa-UB~UBE2D2 Deposited 2019-12-30 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain S 1–163（163 aa）
Not recorded ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 3.70 Å
6VCD Cryo-EM structure of IRP2-FBXL5-SKP1 complex Deposited 2019-12-20 Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain C 1–163（163 aa）
Not recorded FES FE2/S2 (INORGANIC) CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
6W66 The structure of the F64A, S172A mutant Keap1-BTB domain in complex with SKP1-FBXL17 Deposited 2020-03-16 Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 1–163（163 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；well solution 37.5 ul of 50 mM MgCl2, 100 mM HEPES pH 7.5, 30% (v/v) PEG MME 550 (E7 Hampton Index) + 12.5ul H2O mixed 1:1 with complex at 15mg/ml in 150 mM NaCl, 25 mM Tris/HCl pH 8.0
Resolution 3.21 Å R-free 0.290
6WCQ Structure of a substrate-bound DQC ubiquitin ligase Deposited 2020-03-31 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain A 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 8.50 Å
6WNX FBXW11-SKP1 in complex with a pSer33/pSer37 Beta-Catenin peptide Deposited 2020-04-23 Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 1–163（163 aa）
Not recorded GOL GLYCEROL × 4 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；298 K；0.12M Ethylene Glycol, 0.1M Morpheus Buffer 1 pH 6.5, 30.0% GOL_P4K
Resolution 2.50 Å R-free 0.251
6WNX FBXW11-SKP1 in complex with a pSer33/pSer37 Beta-Catenin peptide Deposited 2020-04-23 Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain E 1–163（163 aa）
Not recorded GOL GLYCEROL × 1 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；298 K；0.12M Ethylene Glycol, 0.1M Morpheus Buffer 1 pH 6.5, 30.0% GOL_P4K
Resolution 2.50 Å R-free 0.251
6WNX FBXW11-SKP1 in complex with a pSer33/pSer37 Beta-Catenin peptide Deposited 2020-04-23 Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain H 1–163（163 aa）
Not recorded GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；298 K；0.12M Ethylene Glycol, 0.1M Morpheus Buffer 1 pH 6.5, 30.0% GOL_P4K
Resolution 2.50 Å R-free 0.251
7B5L Ubiquitin ligation to F-box protein substrates by SCF-RBR E3-E3 super-assembly: NEDD8-CUL1-RBX1-SKP1-SKP2-CKSHS1-Cyclin A-CDK2-p27-UBE2L3~Ub~ARIH1. Transition State 1 Deposited 2020-12-04 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric
Chain S 1–163（163 aa）
Not recorded ZN ZINC ION × 9 SY8 5-azanylpentan-2-one × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
7B5M Ubiquitin ligation to F-box protein substrates by SCF-RBR E3-E3 super-assembly: CUL1-RBX1-SKP1-SKP2-CKSHS1-p27~Ub~ARIH1. Transition State 2 Deposited 2020-12-05 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain S 1–163（163 aa）
Not recorded ZN ZINC ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.91 Å
7B5R Ubiquitin ligation to F-box protein substrates by SCF-RBR E3-E3 super-assembly: CUL1-RBX1-SKP1-SKP2-CKSHS1-Cyclin A-CDK2-p27 Deposited 2020-12-07 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain S 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
7T1Y Structure of the Fbw7-Skp1-MycCdegron complex Deposited 2021-12-02 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 2–163（162 aa）
Not recorded SO4 SULFATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；298.15 K；0.1 M Bicine pH6.5, 1.6 M Li2SO4
Resolution 2.55 Å R-free 0.268
7T1Z Structure of the Fbw7-Skp1-MycNdegron complex Deposited 2021-12-02 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain A 2–163（162 aa）
Not recorded SO4 SULFATE ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；298.15 K；0.1 M Bicine pH6.5, 1.6 M Li2SO4
Resolution 2.77 Å R-free 0.248
7Z8B Structure of CRL7FBXW8 reveals coupling with CUL1-RBX1/ROC1 for multi-cullin-RING E3-catalyzed ubiquitin ligation Deposited 2022-03-17 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain S 1–163（163 aa）
Not recorded ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
7Z8T CAND1-SCF-SKP2 CAND1 engaged SCF rocked Deposited 2022-03-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain S 1–163（163 aa）
Not recorded ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
7Z8V CAND1-SCF-SKP2 (SKP1deldel) CAND1 engaged SCF rocked Deposited 2022-03-18 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain S 1–163（163 aa）
Not recorded ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
7ZBW CAND1-SCF-SKP2 CAND1 rolling-2 SCF engaged Deposited 2022-03-24 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain S 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
7ZBZ CAND1 delhairpin-SCF-SKP2 CAND1 partly engaged SCF partly rocked Deposited 2022-03-24 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain S 1–163（163 aa）
Not recorded ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
8BYA Cryo-EM structure of SKP1-SKP2-CKS1-CDK2-CyclinA-p27KIP1 Complex Deposited 2022-12-12 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.38 Å
8BYL Cryo-EM structure of SKP1-SKP2-CKS1 from the SCFSKP2 E3 ligase complex Deposited 2022-12-13 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain A 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8CDJ CAND1 b-hairpin++-SCF-SKP2 CAND1 rolling SCF engaged Deposited 2023-01-31 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain S 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
8CDK CAND1 b-hairpin++-SCF-SKP2 CAND1 partly engaged SCF partly rocked Deposited 2023-01-31 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain S 1–163（163 aa）
Not recorded ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.32 Å
8OR0 CAND1-CUL1-RBX1-SKP1-SKP2-CKS1-CDK2 Deposited 2023-04-12 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–163（163 aa）
Not recorded ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
8OR3 CAND1-CUL1-RBX1-SKP1-SKP2-DCNL1 Deposited 2023-04-13 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric
Chain D 1–163（163 aa）
Not recorded ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
8OR4 Partially dissociated CAND1-CUL1-RBX1-SKP1-SKP2-CKS1-CDK2 Deposited 2023-04-13 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
8S7D Cryo-EM structure of SKP1-FBXO22 in complex with a BACH1 BTB dimer at 3.2A resolution Deposited 2024-02-29 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain C 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
8S7E Cryo-EM structure of SKP1-FBXO22 Deposited 2024-02-29 Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain A 2–163（162 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
8UA6 Cryo-EM Structure of SCF-FBOX22-BACH1BTB Deposited 2023-09-20 Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain B 1–160（160 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8UBT Structure of SCF-FBXL17-BACH1BTB E3 ligase complex Deposited 2023-09-24 Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain B 1–163（163 aa） Fragment：BTB domain (UNP residues 7-128)
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
8UBU Cryo-EM structure of dimeric SCF-FBXL17-BACH1BTB E3 ligase complex close conformation Deposited 2023-09-25 Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric
Chain C 1–163（163 aa）
Chain G 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
9CB3 E2F1-Cyclin F Interface Deposited 2024-06-18 Different construct Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric
Chain B 1–163（163 aa） Fragment：BTB domain (UNP residues 7-128)
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.47 Å
9JKB Cryo-EM structure of the CUL1-RBX1-SKP1-FBXO4 SCF ubiquition ligase complex Deposited 2024-09-15 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric
Chain B 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.93 Å
9KBD Cryo-EM structure of the CUL1-RBX1-SKP1-FBXO3 SCF ubiquition ligase complex Deposited 2024-10-30 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric
Chain B 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9KBF Cryo-EM structure of the SKP1-FBXO3 complex Deposited 2024-10-30 Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric
Chain B 1–163（163 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.74 Å
9QO0 Pre-activated 9-subunit COP9 signalosome and neddylated SCF (Skp1-Skp2-Cks1) complex structure Deposited 2025-03-25 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: 15-meric
Chain L 1–163（163 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；15 mM Hepes pH 7.5, 120 mM NaCl, 0.5 mM DTT
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.26 Å
9QO2 Dissociation-state-1 of 9-subunit CSN and SCF (SKP1-SKP2-CKS1) complex Deposited 2025-03-25 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: 14-meric
Chain L 1–163（163 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；15 mM Hepes pH 7.5, 120 mM NaCl, 0.5 mM DTT
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
9QO3 Dissociation-state-2 of 9-subunit CSN and SCF (SKP1-SKP2-CKS1) complex Deposited 2025-03-25 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: 13-meric
Chain L 1–163（163 aa）
Not recorded ZN ZINC ION × 1 IHP INOSITOL HEXAKISPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；15 mM Hepes pH 7.5, 120 mM NaCl, 0.5 mM DTT
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
9QO4 Dissociation-state-3 of 9-subunit CSN and SCF (SKP1-SKP2-CKS1) complex Deposited 2025-03-25 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: 14-meric
Chain L 1–163（163 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；15 mM Hepes pH 7.5, 120 mM NaCl, 0.5 mM DTT
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.95 Å
9QO5 Dissociation-state-4 of 9-subunit CSN and SCF (SKP1-SKP2-CKS1) complex Deposited 2025-03-25 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: 14-meric
Chain L 1–163（163 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；15 mM Hepes pH 7.5, 120 mM NaCl, 0.5 mM DTT
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.00 Å
9XZJ Cryo-EM structure of F-box helicase 1 (FBH1) bound to an SCF ubiquitin ligase complex and a 3-way DNA fork (consensus structure) Deposited 2025-08-27 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 4 PDB declaration: octameric
Chain S 1–163（163 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 1 MG MAGNESIUM ION × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.13 Å
9XZL Cryo-EM structure of F-box helicase 1 (FBH1) bound to an SCF ubiquitin ligase complex and a 3-way DNA fork (body structure) Deposited 2025-08-27 Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: tetrameric
Chain S 1–163（163 aa）
Not recorded AGS PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 1 MG MAGNESIUM ION × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å

71 other PDB entries and 97 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SKP1_HUMAN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–163； UniProt 1–163

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 4i6j

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4i6j
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4i6j
Deposition date deposition_date2012-11-29
Structure title titleA ubiquitin ligase-substrate complex
Keywords keywordsCircadian Clock, Ubiquitination, LRR, F-box, Photolyase fold, Periods, Nucleus, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodX-RAY DIFFRACTION
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier34.44 Å
Radius of gyration Rg (electron density) rg_electron33.69 Å
Forward intensity I(0) i0208617000.00
Molecular weight molecular_weight117540.0 kDa
Excluded volume excluded_volume147910 ų
Envelope volume envelope_volume190960 ų
Hydration-shell volume shell_volume47246 ų
Envelope diameter envelope_diameter120.1 Å
Shell Rg shell_rg40.30 Å
Envelope Rg envelope_rg33.58 Å
Shape Rg shape_rg33.66 Å
Total Rg total_rg34.33 Å
Total atoms total_atoms8279
Residues n_residues1027
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax111.1 Å
Rg (real space) rg_real34.37 Å
Rg uncertainty (real space) rg_real_error0.70 Å
I(0) (real space) i0_real2.0860e+08
I(0) uncertainty (real space) i0_real_error2.9850e+06
Rg (reciprocal space) rg_reciprocal34.41 Å
I(0) (reciprocal space) i0_reciprocal208600000.0000
Solution quality estimate total_estimate0.8987
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary41.1 Å
Skewness Skewness skewness0.245
Kurtosis Kurtosis kurtosis-0.478
Angular range angular_range— – 0.2300 Å−1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha36990000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.924; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.906
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (4)

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7. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd4i6ja1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.28 — Cryptochrome/photolyase, N-terminal domain
Superfamily Superfamily superfamilyc.28.1 — Cryptochrome/photolyase, N-terminal domain
Family Family familyc.28.1.0 — automated matches
Domain ID domain_idd4i6jc1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.42 — POZ domain
Superfamily Superfamily superfamilyd.42.1 — POZ domain
Family Family familyd.42.1.0 — automated matches
Domain ID domain_idd4i6jc2
Class classa — All alpha proteins
Fold Fold folda.157 — Skp1 dimerisation domain-like
Superfamily Superfamily superfamilya.157.1 — Skp1 dimerisation domain-like
Family Family familya.157.1.1 — Skp1 dimerisation domain-like

CATH v4.4 (6 domains)

Domain ID domain_id4i6jA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily620 — HUPs
Domain ID domain_id4i6jA02
Class class1 — Mainly Alpha
Architecture architecture25 — Alpha Horseshoe
Topology topology40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily80 —
Domain ID domain_id4i6jA03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology579 — DNA Cyclobutane Dipyrimidine Photolyase, subunit A; domain 3
Homologous superfamily homologous superfamily10 — DNA Cyclobutane Dipyrimidine Photolyase, subunit A, domain 3
Domain ID domain_id4i6jB01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1280 — Monooxygenase
Homologous superfamily homologous superfamily50 —
Domain ID domain_id4i6jB02
Class class3 — Alpha Beta
Architecture architecture80 — Alpha-Beta Horseshoe
Topology topology10 — Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)
Homologous superfamily homologous superfamily10 — Ribonuclease Inhibitor
Domain ID domain_id4i6jC00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology710 — Potassium Channel Kv1.1; Chain A
Homologous superfamily homologous superfamily10 — Potassium Channel Kv1.1; Chain A
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8. Citations (1)

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9. Files and Curves (10)