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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：P06136 New Search
6PDB entries
8Biological assembly
8chain/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
2VH1 Crystal structure of bacterial cell division protein FtsQ from E.coli Deposited 2007-11-16 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 58–276（219 aa） Fragment：RESIDUES 58-276
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions 33 MM N-OCTYL-B-D-GLUCOSIDE, 50 MM TRIS PH8.5, 8% PEG550MME, 8% PEG20K, 1.2 M NAFORMATE
Resolution 2.70 Å R-free 0.288
2VH1 Crystal structure of bacterial cell division protein FtsQ from E.coli Deposited 2007-11-16 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 58–276（219 aa） Fragment：RESIDUES 58-276
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions 33 MM N-OCTYL-B-D-GLUCOSIDE, 50 MM TRIS PH8.5, 8% PEG550MME, 8% PEG20K, 1.2 M NAFORMATE
Resolution 2.70 Å R-free 0.288
6H9N Complex of the periplasmic domains of bacterial cell division proteins FtsQ and FtsB Deposited 2018-08-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 58–276（219 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.15 M potassium thiocyanate, 20 % PEG 550 MME, 0.1 M sodium cacodylate pH 6.5
Resolution 2.60 Å R-free 0.252
6H9O Complex of the periplasmic domains of bacterial cell division proteins FtsQ and FtsB Deposited 2018-08-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 58–276（219 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；293 K；0.057 M potassium thiocyanate, 10 % PEG 550 MME, 0.1 M sodium cacodylate pH 6.5.
Resolution 2.80 Å R-free 0.277
6H9O Complex of the periplasmic domains of bacterial cell division proteins FtsQ and FtsB Deposited 2018-08-05 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 58–276（219 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；293 K；0.057 M potassium thiocyanate, 10 % PEG 550 MME, 0.1 M sodium cacodylate pH 6.5.
Resolution 2.80 Å R-free 0.277
8Y9Y Structure of the SecA-SecY complex with the substrate FtsQ-LacY(+1C) Deposited 2024-02-07 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 23–47（25 aa）
Mutation：T1M,R2A,L3K,A4K,G5T,C53A MG MAGNESIUM ION × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.29 Å
8YA2 Structure of the SecA-SecY complex with the substrate FtsQ-LacY(+20C) Deposited 2024-02-07 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain B 23–47（25 aa）
Mutation：T1M,R2A,L3K,A4K,G5T,E45C,C53A MG MAGNESIUM ION × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.84 Å
8YA3 Structure of the SecA-SecY complex with the substrate FtsQ-LacY(+7C) treated with DTT Deposited 2024-02-07 Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain B 28–47（20 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.27 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.