← Back to search

Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q5T4S7 New Search
11PDB entries
13Biological assembly
21chain/assembly records
Main Difference Dimensions in This Set
Different construct Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
8J9Q Crystal structure of UBR box of UBR4 apo Deposited 2023-05-04 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1660–1729（70 aa）
Not recorded ZN ZINC ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；291.15 K；0.1 M DL-malic acid (pH7.0) and 18% (w/v) polyethylene glycol 3350 (PEG3350)
Resolution 2.18 Å R-free 0.269
8J9Q Crystal structure of UBR box of UBR4 apo Deposited 2023-05-04 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1660–1729（70 aa）
Not recorded ZN ZINC ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；291.15 K；0.1 M DL-malic acid (pH7.0) and 18% (w/v) polyethylene glycol 3350 (PEG3350)
Resolution 2.18 Å R-free 0.269
8J9Q Crystal structure of UBR box of UBR4 apo Deposited 2023-05-04 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 1660–1729（70 aa）
Not recorded ZN ZINC ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；291.15 K；0.1 M DL-malic acid (pH7.0) and 18% (w/v) polyethylene glycol 3350 (PEG3350)
Resolution 2.18 Å R-free 0.269
8J9R Crystal structure of UBR box of YIFS-UBR4 Deposited 2023-05-04 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1660–1729（70 aa）
Not recorded ZN ZINC ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291.15 K；0.1 M Bis-Tris (pH5.6), 29% (w/v) polyethylene glycol 3350 (PEG3350), 0.2 M lithium sulfate monohydrate
Resolution 1.65 Å R-free 0.287
9D9Z Structure of human UBR4-KCMF1-CaM E3 ligase complex (Silencing Factor of the Integrated stress response, SiFI) Deposited 2024-08-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 2–5183（5182 aa）
Chain B 2–5183（5182 aa）
Not recorded ZN ZINC ION × 20 CA CALCIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9HXW Cryo-EM structure of the human UBR4/KCMF1/CALM1 complex (composite map) Deposited 2025-01-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–4781（4781 aa）
Chain B 1–4781（4781 aa）
Not recorded ZN ZINC ION × 20 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9NWD Human E3 ligase UBR4-KCMF1-calmodulin complex (N-terminal) Deposited 2025-03-22 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–5183（5183 aa）
Chain B 1–5183（5183 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
9NWE E3 ligase UBR4-KCMF1-calmodulin complex Deposited 2025-03-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 2–5183（5182 aa）
Chain B 2–5183（5182 aa）
Not recorded ZN ZINC ION × 6 CA CALCIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
9QWS Cryo-EM structure of the human UBR4/KCMF1/CALM1 complex (C-term dimer interface focused refinement) Deposited 2025-04-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–5183（5183 aa）
Chain B 1–5183（5183 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9QWU Cryo-EM structure of the human UBR4/KCMF1/CALM1 complex (CALM1 focused refinement) Deposited 2025-04-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–5183（5183 aa）
Chain B 1–5183（5183 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9QWX Cryo-EM structure of the human UBR4/KCMF1/CALM1 complex (N-term focused refinement) Deposited 2025-04-15 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–5183（5183 aa）
Chain B 1–5183（5183 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
9QWZ Cryo-EM structure of the human UBR4/KCMF1/CALM1 complex (BP focused refinement) Deposited 2025-04-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–5183（5183 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.80 Å
9QX0 Cryo-EM structure of the human UBR4/KCMF1/CALM1 complex (C-term focused refinement) Deposited 2025-04-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–5183（5183 aa）
Chain B 1–5183（5183 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

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.