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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：P47985 New Search
5PDB entries
5Biological assembly
18chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion 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
5XTE Cryo-EM structure of human respiratory complex III (cytochrome bc1 complex) Deposited 2017-06-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 22 PDB declaration: 22-meric（22） Consistent with protein count
Chain B 1–57（57 aa） Fragment：UNP RESIDUES 1-57
Chain C 79–274（196 aa）
Chain O 1–57（57 aa） Fragment：UNP RESIDUES 1-57
Chain P 79–274（196 aa）
Not recorded CDL CARDIOLIPIN × 9 FES FE2/S2 (INORGANIC) CLUSTER × 2 PEE 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 6 HEC HEME C × 2 HEM PROTOPORPHYRIN IX CONTAINING FE × 4 PLX (9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
5XTH Cryo-EM structure of human respiratory supercomplex I1III2IV1 Deposited 2017-06-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 80 PDB declaration: 80-meric（80） Consistent with protein count
Chain AB 1–57（57 aa） Fragment：UNP RESIDUES 1-57
Chain AC 79–274（196 aa）
Chain AO 1–57（57 aa） Fragment：UNP RESIDUES 1-57
Chain AP 79–274（196 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 6 FMN FLAVIN MONONUCLEOTIDE × 1 PLX (9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL × 12 8Q1 S-[2-({N-[(2R)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-beta-alanyl}amino)ethyl] dodecanethioate × 2 NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 1 FES FE2/S2 (INORGANIC) CLUSTER × 4 CDL CARDIOLIPIN × 14 PEE 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 10 CU COPPER (II) ION × 3 MG MAGNESIUM ION × 1 HEA HEME-A × 2 ZN ZINC ION × 1 HEC HEME C × 2 HEM PROTOPORPHYRIN IX CONTAINING FE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
5XTI Cryo-EM architecture of human respiratory chain megacomplex-I2III2IV2 Deposited 2017-06-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 138 PDB declaration: 138-meric（138） Consistent with protein count
Chain AB 1–57（57 aa） Fragment：UNP RESIDUES 1-57
Chain AC 79–274（196 aa）
Chain AO 1–57（57 aa） Fragment：UNP RESIDUES 1-57
Chain AP 79–274（196 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 12 FMN FLAVIN MONONUCLEOTIDE × 2 PLX (9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL × 21 8Q1 S-[2-({N-[(2R)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-beta-alanyl}amino)ethyl] dodecanethioate × 4 NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 2 FES FE2/S2 (INORGANIC) CLUSTER × 6 CDL CARDIOLIPIN × 19 PEE 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 14 CU COPPER (II) ION × 6 MG MAGNESIUM ION × 2 HEA HEME-A × 4 ZN ZINC ION × 2 HEC HEME C × 2 HEM PROTOPORPHYRIN IX CONTAINING FE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 17.40 Å
9CG3 Human kidney respiratory complex III Deposited 2024-06-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 20 PDB declaration: 20-meric（20） Consistent with protein count
Chain C 1–274（274 aa）
Chain P 1–274（274 aa）
Not recorded FES FE2/S2 (INORGANIC) CLUSTER × 2 HEC HEME C × 2 HEM PROTOPORPHYRIN IX CONTAINING FE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.96 Å
9HZL High resolution cryo-EM structure of human complex III in mitochondria Deposited 2025-01-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 22 PDB declaration: 22-meric（22） Consistent with protein count
Chain B 1–274（274 aa）
Chain C 1–274（274 aa）
Chain O 1–274（274 aa）
Chain P 1–274（274 aa）
Not recorded CDL CARDIOLIPIN × 9 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 6 FES FE2/S2 (INORGANIC) CLUSTER × 2 PLX (9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL × 2 HEC HEME C × 2 HEM PROTOPORPHYRIN IX CONTAINING FE × 4 PEE 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 1 U10 UBIQUINONE-10 × 4 PC1 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；25 mM HEPES-KOH pH=7.5, 50 mM KCl, 20 mM Mg(OAc)2, 0.01% (v/v) LMNG, 0.001 % cardiolipin, 0.001 % GD, 0.1mM DTT
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.52 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.