Structure of PDB 3x1n Chain A Binding Site BS03

Receptor Information

>3x1n Chain A (length=298) Species: 420246 (Geobacillus thermodenitrificans NG80-2)

IAAHKGVNQAPVPLKMERVGPHDVHIEMTAQITDIEIDKGKIYKAWTFNG
QAPGPLVVVNEGDTIHFTLKNMDPVVPHSMDFHAVHASPSKDFIDVMPNK
SGTFTYPANKPGVFMYHAGTKPVLQHIANGMHGVIIVKPKNGYPTDKEVD
REYVLIQNEWYKYNDMNDFQNGVPSYVVFSSKALKPGDPNTNGDTFTLKE
KPLLAKVGEKIRLYINNVGPNEVSSFHVVGTVFDDVYLDGNPNNHLQGMQ
TVMLPASGGAVVEFTVTRPGTYPIVTHQFNHAQKGAVAMLKVTETGED

Ligand information

• Ligand ID: CU
• InChI: InChI=1S/Cu/q+2
• InChIKey: JPVYNHNXODAKFH-UHFFFAOYSA-N
• SMILES:
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Cu+2]
  CACTVS 3.341: [Cu++]
• Formula: Cu
• Name: COPPER (II) ION
• DrugBank: DB14552
• PDB chain: 3x1n Chain A Residue 403

Receptor-Ligand Complex Structure

Structure summary

• PDB: 3x1n High-temperature and high-resolution crystallography of thermostable copper nitrite reductase.
• Resolution: 1.55 Å
• Binding residue (original residue number in PDB): H42 H83
• Binding residue (residue number reindexed from 1): H25 H66
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): H95 D98 H100 H134 A135 H143 M148 H244 Q267 T268 H294
• Catalytic site (residue number reindexed from 1): H78 D81 H83 H117 A118 H126 M131 H227 Q250 T251 H277
• Enzyme Commision number: 1.7.2.1: nitrite reductase (NO-forming).

Gene Ontology

Molecular Function

• GO:0005507 copper ion binding
• GO:0016491 oxidoreductase activity
• GO:0050421 nitrite reductase (NO-forming) activity

External links

• PDB: RCSB:3x1n, PDBe:3x1n, PDBj:3x1n
• PDBsum: 3x1n
• PubMed: 25563214
• UniProt: A4IL26