3X1N image
Deposition Date 2014-11-25
Release Date 2015-01-21
Last Version Date 2023-11-08
Entry Detail
PDB ID:
3X1N
Keywords:
OXIDOREDUCTASE
Title:
Nitrite-bound thermostable copper nitrite reductase at 320 K
Biological Source:
Source Organism:
Geobacillus thermodenitrificans NG80-2 (Taxon ID: 420246)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.55 Å
R-Value Free:
0.13
R-Value Work:
0.11
R-Value Observed:
0.11
Space Group:
H 3
3X1N validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Nitrite reductase
Gene (Uniprot):nirK
Mutations:C135A
Chain IDs:A
Chain Length:352
Number of Molecules:1
Biological Source:Geobacillus thermodenitrificans NG80-2
UniProt ID:A4IL26 Pfam ID:PF07732, PF07731 EC:1.7.2.1
Ligand Molecules
CU
NO2
Primary Citation
High-temperature and high-resolution crystallography of thermostable copper nitrite reductase.
Chem.Commun.(Camb.) 51 6532 6535 (2015)
PMID: 25563214 DOI: 10.1039/c4cc09553g

Abstact

The 1.55 Å resolution thermostable copper nitrite reductase structure at 320 K displayed a near-bidentate binding mode of nitrite distinct from a monodentate mode in a cryogenic structure. To our knowledge, this is the first case in which the difference in substrate binding modes between cryogenic and high-temperature structures has been visualized by crystallography.

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Protein

Chemical

Disease

Primary Citation of related structures
3WKP