4nl5

X-ray diffraction
1.9Å resolution

Mycobacterium tuberculosis heme-degrading protein MhuD in complex with heme and cyanide

Released:

Function and Biology Details

Reaction catalysed:
Protoheme + 3 reduced acceptor + 3 O(2) = mycobilin a + Fe(2+) + 3 acceptor + 3 H(2)O
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-161743 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Heme oxygenase (mycobilin-producing) Chains: A, B
Molecule details ›
Chains: A, B
Length: 123 amino acids
Theoretical weight: 13.19 KDa
Source organism: Mycobacterium tuberculosis
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P9WKH3 (Residues: 1-105; Coverage: 100%)
Gene names: Rv3592, mhuD
Sequence domains: Antibiotic biosynthesis monooxygenase
Structure domains: Alpha-Beta Plaits

Ligands and Environments


Cofactor: Ligand HEM 2 x HEM
2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P212121
Unit cell:
a: 40.97Å b: 60.4Å c: 78.46Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.178 0.173 0.224
Expression system: Escherichia coli BL21(DE3)