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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：P68799 New Search
2PDB entries
3Biological assembly
3chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state 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
2GOX Crystal structure of Efb-C / C3d Complex Deposited 2006-04-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 101–165（65 aa） Fragment：C-terminal domain: Residues 101-165
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；60% Tacsimate pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K
Resolution 2.20 Å R-free 0.231
2GOX Crystal structure of Efb-C / C3d Complex Deposited 2006-04-14 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 101–165（65 aa） Fragment：C-terminal domain: Residues 101-165
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；60% Tacsimate pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K
Resolution 2.20 Å R-free 0.231
9N20 Structure of C3d Bound to a Fragment of FHR-2 and S. aureus Efb-C Deposited 2025-01-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain C 94–165（72 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；0.1 M imidazole [pH 6.7] 12% (w/v) peg-20k
Resolution 3.30 Å R-free 0.214

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.