› 2w31

X-ray diffraction
1.5Å resolution

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-565185 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Globin-sensor domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 162 amino acids
Theoretical weight: 19.19 KDa
Source organism: Geobacter sulfurreducens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q747F6 (Residues: 1-162; Coverage: 54%)
Gene name: GSU3311
Sequence domains: Protoglobin
Structure domains: Globins

Ligands and Environments

2 bound ligands:
Ligand HEM 2 x HEM
Ligand GOL 3 x GOL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID23-2
Spacegroup: P212121
Unit cell:
a: 56.634Å b: 73.83Å c: 89.872Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.168 0.164 0.207
Expression system: Escherichia coli

Quick links

Citations

3 review citations

Structural heterogeneity and ligand gating in ferric Methanosarcina acetivorans protoglobin mutants.
Pesce et al. (2011)
2 more

8 mentions without citation

Heme-based globin-coupled oxygen sensors: linking oxygen binding to functional regulation of diguanylate cyclase, histidine kinase, and methyl-accepting chemotaxis.
Martínková et al. (2013)
7 more