Structure of PDB 2xx0 Chain B Binding Site BS01

Receptor Information

>2xx0 Chain B (length=336) Species: 85698 (Achromobacter xylosoxidans)

EDADKLPHTKVTLVAPPQVHPHEQATKSGPKVVEFTMTIEEKKMVIDDKG
TTLQAMTFNGSMPGPTLVVHEGDYVQLTLVNPATNAMPHSVDFHGATGAL
GGAKLTNVNPGEQATLRFKADRSGTFVYHCAPEGMVPWHVVSGMSGTLMV
LPRDGLKDPQGKPLHYDRAYTIGEFDLYIPKGPDGKYKDYATLAESYGDT
VQVMRTLTPSHIVFNGKVGALTGANALTAKVGETVLLIHSQANRDTRPHL
IGGFGDWVWETGKFANPPQRDLETWFIRGGSAGAALYTFKQPGVYAYLNH
NLIEAFELGAAGHIKVEGKWNDDLMKQIKAPAPIPR

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: 2xx0 Chain B Residue 1337

Receptor-Ligand Complex Structure

Structure summary

• PDB: 2xx0 Proton-Coupled Electron Transfer in the Catalytic Cycle of Alcaligenes Xylosoxidans Copper-Dependent Nitrite Reductase.
• Resolution: 1.46 Å
• Binding residue (original residue number in PDB): H89 C130 H139 M144
• Binding residue (residue number reindexed from 1): H89 C130 H139 M144
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): H89 D92 H94 H129 C130 H139 M144 H249 E273 T274 H300
• Catalytic site (residue number reindexed from 1): H89 D92 H94 H129 C130 H139 M144 H249 E273 T274 H300
• Enzyme Commision number: 1.7.2.1: nitrite reductase (NO-forming).

Gene Ontology

Molecular Function

• GO:0005507 copper ion binding
• GO:0005515 protein binding
• GO:0016491 oxidoreductase activity
• GO:0046872 metal ion binding
• GO:0050421 nitrite reductase (NO-forming) activity

Biological Process

• GO:0019333 denitrification pathway
• GO:0042128 nitrate assimilation

Cellular Component

• GO:0042597 periplasmic space

External links

• PDB: RCSB:2xx0, PDBe:2xx0, PDBj:2xx0
• PDBsum: 2xx0
• PubMed: 21469743
• UniProt: O68601