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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：Q9NR09 New Search
22PDB entries
23Biological assembly
33chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
3CEG Crystal structure of the UBC domain of baculoviral IAP repeat-containing protein 6 Deposited 2008-02-29 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 4470–4792（323 aa） Fragment：UBC domain: Residues 4470-4792
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 10；298 K；11 % PEG 8000, 0.1 M Gycine buffer pH 10.0, 0.001 M DTT, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.01 Å R-free 0.252
3CEG Crystal structure of the UBC domain of baculoviral IAP repeat-containing protein 6 Deposited 2008-02-29 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 4470–4792（323 aa） Fragment：UBC domain: Residues 4470-4792
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 10；298 K；11 % PEG 8000, 0.1 M Gycine buffer pH 10.0, 0.001 M DTT, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.01 Å R-free 0.252
8ATM Structure of the giant inhibitor of apoptosis, BIRC6 (composite map) Deposited 2022-08-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
8ATO Structure of the giant inhibitor of apoptosis, BIRC6 bound to the regulator SMAC Deposited 2022-08-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
8ATU Cryo-EM structure of human BIRC6 Deposited 2022-08-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
8ATX Cryo-EM structure of human BIRC6 - no substrate Deposited 2022-08-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.00 Å
8AUK Cryo-EM structure of human BIRC6 in complex with HTRA2. Deposited 2022-08-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.20 Å
8AUW Cryo-EM structure of human BIRC6 in complex with SMAC. Deposited 2022-08-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.20 Å
8E2D Cryo-EM structure of BIRC6 (consensus) Deposited 2022-08-15 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.07 Å
8E2E Cryo-EM structure of helical arch of BIRC6 (from local refinement 1) Deposited 2022-08-15 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.98 Å
8E2F Cryo-EM structure of N-terminal arm of BIRC6 (from local refinement 2) Deposited 2022-08-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–4857（4857 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.47 Å
8E2G Cryo-EM structure of N-terminal arm (aa68-966) of BIRC6 (from local refinement 3) Deposited 2022-08-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–4857（4857 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.99 Å
8E2H Cryo-EM structure of C-terminal arm of BIRC6 (from local refinement 4) Deposited 2022-08-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–4857（4857 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.30 Å
8E2I Cryo-EM structure of BIRC6/Smac Deposited 2022-08-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.04 Å
8E2K Cryo-EM structure of BIRC6/HtrA2-S306A Deposited 2022-08-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–4857（4857 aa）
Chain B 1–4857（4857 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.21 Å
9QGW Consensus structure of UBA6-UbDha-BIRC6 trapped ternary complex (singly loaded) Deposited 2025-03-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 4498–4820（323 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.62 Å
9QH5 Consensus structure of UBA6-UbDha-BIRC6 trapped ternary complex (doubly loaded) Deposited 2025-03-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 4498–4820（323 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 AMP ADENOSINE MONOPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.09 Å
9QHI Structure of UBA6-UbDha-BIRC6 trapped ternary complex (cluster 0) Deposited 2025-03-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 4498–4820（323 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 AMP ADENOSINE MONOPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.27 Å
9QIA Structure of UBA6-UbDha-BIRC6 trapped ternary complex (cluster 2) Deposited 2025-03-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 4498–4820（323 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 AMP ADENOSINE MONOPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.38 Å
9QIM Consensus structure of UBA6-BIRC6 Deposited 2025-03-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 4498–4820（323 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.57 Å
9QIO Structure of UBA6-BIRC6 (cluster 0) Deposited 2025-03-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 4498–4820（323 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.22 Å
9QIP Structure of UBA6-BIRC6 (cluster 4) Deposited 2025-03-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 4498–4820（323 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.15 Å
9QIV Consensus structure of UBA6-BIRC6 (alternative conformation) Deposited 2025-03-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 4498–4820（323 aa）
Not recorded IHP INOSITOL HEXAKISPHOSPHATE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.44 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.