1BQ5 image
Deposition Date 1998-08-21
Release Date 1999-08-21
Last Version Date 2024-02-07
Entry Detail
PDB ID:
1BQ5
Keywords:
OXIDOREDUCTASE
Title:
NITRITE REDUCTASE FROM ALCALIGENES XYLOSOXIDANS GIFU 1051
Biological Source:
Source Organism:
Achromobacter xylosoxidans (Taxon ID: 85698)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.05 Å
R-Value Free:
0.22
R-Value Work:
0.18
Space Group:
P 63
1BQ5 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NITRITE REDUCTASE
Gene (Uniprot):nir
Chain IDs:A
Chain Length:342
Number of Molecules:1
Biological Source:Achromobacter xylosoxidans
UniProt ID:O68601 Pfam ID:PF07732, PF00394 EC:1.7.2.1
Primary Citation
Type 1 Cu structure of blue nitrite reductase from Alcaligenes xylosoxidans GIFU 1051 at 2.05 A resolution: comparison of blue and green nitrite reductases.
J.Biochem.(Tokyo) 124 876 879 (1998)
PMID: 9792907

Abstact

The crystal structure of the blue nitrite reductase from Alcaligenes xylosoxidans GIFU 1051 (AxgNIR) has been determined at 2.05 A resolution. AxgNIR contains both type 1 and 2 Cu sites, the geometry of the former being distorted tetrahedral. The superpositioning of the type 1 Cu sites in the blue enzyme and a green nitrite reductase revealed that the orientation of the Met150 side chain differed. The deviation of the Sdelta(Met150) atom from the axial position of the NNS plane formed by two Ndelta(His95 and His145) and one Sgamma(Cys136) atom caused the difference in the colors of the enzymes, i.e. blue and green.

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Primary Citation of related structures
1BQ5