› 3nvu

X-ray diffraction
2.04Å resolution

Modulating Heme Redox Potential Through Protein-Induced Porphyrin Distortion

Released:
DOI: 10.2210/pdb3nvu/pdb
PDB entry 3nvu coloured by chain, front view.
PDB entry 3nvu coloured by chain, side view.
PDB entry 3nvu coloured by chain, top view.
Source organism: Caldanaerobacter subterraneus subsp. tengcongensis
Primary publication:
Modulating heme redox potential through protein-induced porphyrin distortion.
Olea C, Kuriyan J, Marletta MA
J Am Chem Soc 132 12794-5 (2010)
PMID: 20735135

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-185952 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Methyl-accepting transducer domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 188 amino acids
Theoretical weight: 22.02 KDa
Source organism: Caldanaerobacter subterraneus subsp. tengcongensis
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8RBX6 (Residues: 1-188; Coverage: 31%)
Gene names: TTE0680, Tar4
Sequence domains: Haem-NO-binding
Structure domains: H-NOX domain

Ligands and Environments

3 bound ligands:
Ligand HEM 2 x HEM
Ligand OXY 2 x OXY
Ligand CL 1 x CL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: C2
Unit cell:
a: 127.158Å b: 79.828Å c: 43.322Å
α: 90° β: 102.25° γ: 90°
R-values:
R R work R free
0.192 0.189 0.234
Expression system: Escherichia coli

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Citations

7 review citations

Metalloproteins containing cytochrome, iron-sulfur, or copper redox centers.
Liu et al. (2014)
6 more