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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：Q15388 New Search
11PDB entries
14Biological assembly
24chain/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
4APO AIP TPR domain in complex with human Tomm20 peptide Deposited 2012-04-04 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain E 140–145（6 aa） Fragment：RESIDUES 140-145
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions PEG 3350, AMMONIUM SULFATE, BIS-TRIS PH 5.5
Resolution 1.90 Å R-free 0.234
4APO AIP TPR domain in complex with human Tomm20 peptide Deposited 2012-04-04 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 140–145（6 aa） Fragment：RESIDUES 140-145
Not recorded 12P DODECAETHYLENE GLYCOL × 1 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions PEG 3350, AMMONIUM SULFATE, BIS-TRIS PH 5.5
Resolution 1.90 Å R-free 0.234
7VC9 Tom20 subunits Deposited 2021-09-02 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain M 1–145（145 aa）
Chain N 1–145（145 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 13.00 Å
8UY3 Fem1B with FNIP1 and Tom20 fragment Deposited 2023-11-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain J 62–127（66 aa） Fragment：residues 62-127
Not recorded ZN ZINC ION × 2 EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID × 1 PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；10 mg/mL protein complex in 50 mM HEPES pH 7.5, 500 mM NaCl, 1 mM TCEP were mixed in a 2:1 ratio with the reservoir solution containing 30% PEG 3350, 0.2M Ammonium Citrate pH 7
Resolution 3.20 Å R-free 0.264
8UY3 Fem1B with FNIP1 and Tom20 fragment Deposited 2023-11-12 Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain K 62–127（66 aa） Fragment：residues 62-127
Not recorded ZN ZINC ION × 2 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；10 mg/mL protein complex in 50 mM HEPES pH 7.5, 500 mM NaCl, 1 mM TCEP were mixed in a 2:1 ratio with the reservoir solution containing 30% PEG 3350, 0.2M Ammonium Citrate pH 7
Resolution 3.20 Å R-free 0.264
8UY3 Fem1B with FNIP1 and Tom20 fragment Deposited 2023-11-12 Assembly 4 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain M 62–127（66 aa） Fragment：residues 62-127
Not recorded ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；10 mg/mL protein complex in 50 mM HEPES pH 7.5, 500 mM NaCl, 1 mM TCEP were mixed in a 2:1 ratio with the reservoir solution containing 30% PEG 3350, 0.2M Ammonium Citrate pH 7
Resolution 3.20 Å R-free 0.264
8XVA Human TOM complex with whole Tom20 Deposited 2024-01-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: 11-meric（11） Consistent with protein count
Chain K 1–145（145 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.92 Å
9EIH Import stalled PINK1 TOM complex Deposited 2024-11-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 26 PDB declaration: 26-meric（26） Consistent with protein count
Chain C 1–145（145 aa）
Chain D 1–145（145 aa）
Not recorded PC1 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 17 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9EII Import stalled PINK1 TOM complex, symmetry expanded Deposited 2024-11-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: 13-meric（13） Consistent with protein count
Chain D 1–145（145 aa）
Not recorded PC1 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 9 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE；Blot force 10 for 2 s.
Resolution 2.75 Å
9EIJ Import stalled PINK1 TOM complex, extended TOM20 helix class Deposited 2024-11-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: 15-meric（15） Consistent with protein count
Chain D 1–145（145 aa）
Not recorded PC1 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 9 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE；Blot force 10 for 2 s.
Resolution 3.30 Å
9J79 Cryo-EM structure of CRL2-FEM1B bound with TOM20(tetramer) Deposited 2024-08-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 19 PDB declaration: 19-meric（19） Consistent with protein count
Chain B 25–145（121 aa）
Chain C 25–145（121 aa）
Chain G 25–145（121 aa）
Chain S 25–145（121 aa）
Not recorded ZN ZINC ION × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.08 Å
9J7A local refinement of FEM1B bound with TOM20 (dimer) Deposited 2024-08-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain B 25–145（121 aa）
Chain C 25–145（121 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.13 Å
9J7B local refinement of FEM1B bound with TOM20(tetramer) Deposited 2024-08-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: 11-meric（11） Consistent with protein count
Chain B 25–145（121 aa）
Chain C 25–145（121 aa）
Chain G 25–145（121 aa）
Chain Q 25–145（121 aa）
Chain S 25–145（121 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.12 Å
9JCE local refinement of FEM1B bound with TOM20 Deposited 2024-08-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain B 25–145（121 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 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.