4r14

Crystal structure of human CSN6 MPN domain

Method: X-RAY DIFFRACTION D_max: 69.8 Å Quality: REASONABLE

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1. Protein Identity and Related Structures Protein Identity & Related Structures

COP9 signalosome complex subunit 6

Homo sapiens

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric（2） Consistent with protein copy count	Chain A； UniProt 38–210 Chain B； UniProt 38–210	Fragment：MPN domain, UNP residues 38-210	HG MERCURY (II) ION × 8	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 7.7；289 K；0.1M Tris pH 7.7, 26% (w/v) PEG 4000, VAPOR DIFFUSION, HANGING DROP, temperature 289K	Resolution 2.60 Å R-free 0.259

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 4R14	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
4D10 Crystal structure of the COP9 signalosome Deposited 2014-04-30	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain N 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 5.4；CRYSTALS GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4, 10 MM UREA.	Resolution 3.80 Å R-free 0.228
4D10 Crystal structure of the COP9 signalosome Deposited 2014-04-30	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 5.4；CRYSTALS GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4, 10 MM UREA.	Resolution 3.80 Å R-free 0.228
4D18 Crystal structure of the COP9 signalosome Deposited 2014-05-01	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 5.4；CRYSTAL GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4. CRYSTAL DEHYDRATED OVERNIGHT WITH 20% PEG 6000 IN WELL	Resolution 4.08 Å R-free 0.253
4D18 Crystal structure of the COP9 signalosome Deposited 2014-05-01	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain N 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 5.4；CRYSTAL GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4. CRYSTAL DEHYDRATED OVERNIGHT WITH 20% PEG 6000 IN WELL	Resolution 4.08 Å R-free 0.253
4QFT Structure of COP9 signalosome complex subunit 6 Deposited 2014-05-21	Different construct Different mutation/modification 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 31–211（181 aa） Fragment：unp residues 31-211	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.2 M Tri-Sodium citrate, 0.1 M Bis-Tris propane, 20% PEG3350, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 1.76 Å R-free 0.206
4QFT Structure of COP9 signalosome complex subunit 6 Deposited 2014-05-21	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 31–211（181 aa） Fragment：unp residues 31-211	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.2 M Tri-Sodium citrate, 0.1 M Bis-Tris propane, 20% PEG3350, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 1.76 Å R-free 0.206
4WSN Crystal structure of the COP9 signalosome, a P1 crystal form Deposited 2014-10-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；273 K；CRYSTALS GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4.	Resolution 5.50 Å R-free 0.282
4WSN Crystal structure of the COP9 signalosome, a P1 crystal form Deposited 2014-10-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain N 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；273 K；CRYSTALS GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4.	Resolution 5.50 Å R-free 0.282
4WSN Crystal structure of the COP9 signalosome, a P1 crystal form Deposited 2014-10-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain V 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；273 K；CRYSTALS GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4.	Resolution 5.50 Å R-free 0.282
4WSN Crystal structure of the COP9 signalosome, a P1 crystal form Deposited 2014-10-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain d 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；273 K；CRYSTALS GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4.	Resolution 5.50 Å R-free 0.282
4WSN Crystal structure of the COP9 signalosome, a P1 crystal form Deposited 2014-10-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain l 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；273 K；CRYSTALS GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4.	Resolution 5.50 Å R-free 0.282
4WSN Crystal structure of the COP9 signalosome, a P1 crystal form Deposited 2014-10-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 6 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain t 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；273 K；CRYSTALS GROWN BY VAPOR DIFFUSION BY MIXING 9.3 MG/ML PROTEIN IN 50 MM HEPES PH 7.4, 200 MM NACL, 2 MM EQUALLY WITH 12% PEG 6000, 100 MM TRISODIUM CITRATE PH 5.4, 0.1 M LI2SO4.	Resolution 5.50 Å R-free 0.282
6R6H Structural basis of Cullin-2 RING E3 ligase regulation by the COP9 signalosome Deposited 2019-03-27	Different construct Different mutation/modification 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: tridecameric	Chain F 20–327（308 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；15 mM Hepes pH 7.5 100 mM NaCl 0.5 mM DTT 1% glycerol cryo-EM vitrification conditions Cryogen NITROGEN	Resolution 8.40 Å
6R7F Structural basis of Cullin-2 RING E3 ligase regulation by the COP9 signalosome Deposited 2019-03-28	Different construct Different mutation/modification 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: tetradecameric	Chain F 29–316（288 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；15 mM HEPES pH 7.5 100 mM NaCL 0.5 mM DTT 1% Glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.20 Å
6R7H Structural basis of Cullin-2 RING E3 ligase regulation by the COP9 signalosome Deposited 2019-03-28	Different construct Different mutation/modification 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 F 29–316（288 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；15 mM HEPES pH 7.5 100 mM NaCl 0.5 mM DTT 1% Glycerol cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.80 Å
6R7I Structural basis of Cullin-2 RING E3 ligase regulation by the COP9 signalosome Deposited 2019-03-28	Different construct Different mutation/modification 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: tridecameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 5.90 Å
8H38 Cryo-EM Structure of the KBTBD2-CRL3~N8-CSN(mutate) complex Deposited 2022-10-08	Different construct Different mutation/modification 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: tridecameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.8	Resolution 4.25 Å
8H3A Cryo-EM Structure of the KBTBD2-CRL3~N8(removed)-CSN complex Deposited 2022-10-08	Different construct Different mutation/modification 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 F 1–327（327 aa）	Not recorded	ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 7.51 Å
8H3F Cryo-EM Structure of the KBTBD2-CRL3-CSN complex Deposited 2022-10-08	Different construct Different mutation/modification 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 F 1–327（327 aa）	Not recorded	ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.73 Å
9E5Z Cryo-EM structure of COP9 signalosome Deposited 2024-10-28	Different construct Different mutation/modification 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 F 1–327（327 aa）	Not recorded	ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
9E77 Cryo-EM structure of CSN-N8 in complex with CSN5i-3 Deposited 2024-11-01	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric	Chain F 1–327（327 aa）	Not recorded	6LT 3-(difluoromethyl)-N-{6-[(5S,6S)-6-hydroxy-6,7,8,9-tetrahydro-5H-imidazo[1,5-a]azepin-5-yl][1,1'-biphenyl]-3-yl}-1-(propan-2-yl)-1H-pyrazole-5-carboxamide × 1 ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9E81 Cryo-EM structure of COP9 signalosome in complex with CSN5i-3 Deposited 2024-11-04	Different construct Different mutation/modification 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 F 1–327（327 aa）	Not recorded	6LT 3-(difluoromethyl)-N-{6-[(5S,6S)-6-hydroxy-6,7,8,9-tetrahydro-5H-imidazo[1,5-a]azepin-5-yl][1,1'-biphenyl]-3-yl}-1-(propan-2-yl)-1H-pyrazole-5-carboxamide × 1 ZN ZINC ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9EFM Cryo-EM structure of COP9 signalosome precatalytic state with neddylated cullin-1 Deposited 2024-11-20	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.16 Å
9EFQ Cryo-EM structure of COP9 signalosome precatalytic state with neddylated cullin-2 Deposited 2024-11-20	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.96 Å
9EFV Cryo-EM structure of CSN-N8CUL1 in complex with CSN5i-3 Deposited 2024-11-20	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric	Chain F 1–327（327 aa）	Not recorded	6LT 3-(difluoromethyl)-N-{6-[(5S,6S)-6-hydroxy-6,7,8,9-tetrahydro-5H-imidazo[1,5-a]azepin-5-yl][1,1'-biphenyl]-3-yl}-1-(propan-2-yl)-1H-pyrazole-5-carboxamide × 1 ZN ZINC ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.03 Å
9EG1 COP9 signalosome deneddylation complex with cullin-5 Deposited 2024-11-20	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.52 Å
9EG8 Cryo-EM structure of COP9 signalosome precatalytic state with neddylated cullin-4A Deposited 2024-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
9EGL Cryo-EM structure of COP9 signalosome precatalytic state with neddylated cullin-3 Deposited 2024-11-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric	Chain F 1–327（327 aa）	Not recorded	ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.93 Å
9PH4 Cryo-EM structure of COP9 signalosome in complex with CSN5i-1a Deposited 2025-07-08	Different construct Different mutation/modification 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 F 1–327（327 aa）	Not recorded	ZN ZINC ION × 1 A1CH3 6-[(4R,5S,6S)-6-hydroxy-6,7,8,9-tetrahydro-5H-imidazo[1,5-a]azepin-5-yl][1,1'-biphenyl]-3-carbonitrile × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
9QO0 Pre-activated 9-subunit COP9 signalosome and neddylated SCF (Skp1-Skp2-Cks1) complex structure Deposited 2025-03-25	Different construct Different mutation/modification 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 F 1–327（327 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
9QO1 Activated 9-subunit COP9 signalosome and neddylated SCF (SKP1-SKP2-CKS1) complex structure Deposited 2025-03-25	Different construct Different mutation/modification 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: 12-meric	Chain F 1–327（327 aa）	Not recorded	IHP INOSITOL HEXAKISPHOSPHATE × 1 ZN ZINC ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.23 Å
9QO2 Dissociation-state-1 of 9-subunit CSN and SCF (SKP1-SKP2-CKS1) complex Deposited 2025-03-25	Different construct Different mutation/modification 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 F 1–327（327 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 construct Different mutation/modification 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 F 1–327（327 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 construct Different mutation/modification 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 F 1–327（327 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 construct Different mutation/modification 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 F 1–327（327 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
9QO6 9-subunit COP9 signalosome complex Deposited 2025-03-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric	Chain F 1–327（327 aa）	Not recorded	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 3.00 Å

28 other PDB entries and 36 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	CSN6_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–173； UniProt 38–210 Author chain B； PDBConstruct 1–173； UniProt 38–210

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

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	4r14
Deposition date deposition_date	2014-08-04
Structure title title	Crystal structure of human CSN6 MPN domain
Keywords keywords	MPN domain, protein-protein interaction, PROTEIN BINDING; PROTEIN BINDING
Experimental Method method	X-RAY DIFFRACTION

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	25.89 Å
Radius of gyration Rg (electron density) rg_electron	26.35 Å
Forward intensity I(0) i0	24370500.00
Molecular weight molecular_weight	36607.0 kDa
Excluded volume excluded_volume	44884 Å³
Envelope volume envelope_volume	64978 Å³
Hydration-shell volume shell_volume	23062 Å³
Envelope diameter envelope_diameter	126.9 Å
Shell Rg shell_rg	29.36 Å
Envelope Rg envelope_rg	28.63 Å
Shape Rg shape_rg	26.46 Å
Total Rg total_rg	26.39 Å
Total atoms total_atoms	2478
Residues n_residues	306
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	69.8 Å
Rg (real space) rg_real	24.31 Å
Rg uncertainty (real space) rg_real_error	0.12 Å
I(0) (real space) i0_real	2.3200e+07
I(0) uncertainty (real space) i0_real_error	2.2940e+05
Rg (reciprocal space) rg_reciprocal	26.20 Å
I(0) (reciprocal space) i0_reciprocal	24370000.0000
Solution quality estimate total_estimate	0.6796
Solution quality rating solution_quality	REASONABLE a REASONABLE solution
P(r) peaks n_peaks	1
Primary peak position r_peak_primary	25.2 Å
Skewness Skewness skewness	0.399
Kurtosis Kurtosis kurtosis	-0.457
Angular range angular_range	— – 0.3050 Å⁻¹
Current regularization parameter α current_alpha	3.4970
Highest regularization parameter α highest_alpha	2331000.0000
Real-space data points n_real_points	62
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.003; Oscil: 0.971; Stabil: 0.978; Sysdev: 0.000; Positv: 1.000; Valcen: 0.989; Smooth: 0.000

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (2)

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8. Citations (1)

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Unit-cell length a length_a	66.552 Å
Unit-cell length b length_b	66.552 Å
Unit-cell length c length_c	86.829 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	6

Space group space_group	P 32
Space-group number int_tables_number	145
Crystal system crystal_system	—

Resolution resolution	2.601 Å
Low-resolution limit resolution_low	34.677 Å
R factor r_factor	0.2268
R_work r_work	0.2252
R_free r_free	0.2591

Description description	COP9 signalosome complex subunit 6
Molecular weight formula_weight	20732.6 kDa
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	2498

Crystal structure of human CSN6 MPN domain

1. Protein Identity and Related Structures Protein Identity & Related Structures

COP9 signalosome complex subunit 6

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

6. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 non-polymer

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Description description	MERCURY (II) ION
Molecular weight formula_weight	200.6 kDa
Source method src_method	syn
Copy count entity_count	8

fit	/app/data/saxs_computation/r1/4r14/4r14.fit
pddf	/app/data/pr_computation/r1/4r14/4r14.pr.out
profile	/app/data/saxs_computation/r1/4r14/4r14.dat