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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：P18797 New Search
2PDB entries
3Biological assembly
5chain/assembly records
Main Difference Dimensions in This Set
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
1CKV STRUCTURE OF THE SOLUBLE METHANE MONOOXYGENASE REGULATORY PROTEIN B Deposited 1999-04-25 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–141（141 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.5；298 K；Ionic strength (raw mmCIF value) 50 mM PHOSPHATE
NMR sample composition 4 MM PEFAPLOC
Resolution not provided
4GAM Complex structure of Methane monooxygenase hydroxylase and regulatory subunit Deposited 2012-07-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain D 1–141（141 aa）
Chain I 1–141（141 aa）
Not recorded FE FE (III) ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.1 M MES and 15% PEG 20,000 (w/v) ure 298K, pH 6.5, VAPOR DIFFUSION, SITTING DROP
Resolution 2.90 Å R-free 0.258
4GAM Complex structure of Methane monooxygenase hydroxylase and regulatory subunit Deposited 2012-07-25 Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain N 1–141（141 aa）
Chain S 1–141（141 aa）
Not recorded FE FE (III) ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.1 M MES and 15% PEG 20,000 (w/v) ure 298K, pH 6.5, VAPOR DIFFUSION, SITTING DROP
Resolution 2.90 Å R-free 0.258

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.