Structure of PDB 1h3j Chain B Binding Site BS03

Receptor Information

>1h3j Chain B (length=336) Species: 5346 (Coprinopsis cinerea)

SVTCPGGQSTSNSQCCVWFDVLDDLQTNFYQGSKCESPVRKILRIVFHDA
IGFSPALTAAGQFGGGGADGSIIAHSNIELAFPANGGLTDTVEALRAVGI
NHGVSFGDLIQFATAVGMSNCPGSPRLEFLTGRSNSSQPSPPSLIPGPGN
TVTAILDRMGDAGFSPDEVVDLLAAHSLASQEGLNSAIFRSPLDSTPQVF
DTQFYIETLLKGTTQPGPSLGFAEELSPFPGEFRMRSDALLARDSRTACR
WQSMTSSNEVMGQRYRAAMAKMSVLGFDRNALTDCSDVIPSAVSNNAAPV
IPGGLTVDDIEVSCPSEPFPEIATASGPLPSLAPAP

Ligand information

• Ligand ID: CA
• InChI: InChI=1S/Ca/q+2
• InChIKey: BHPQYMZQTOCNFJ-UHFFFAOYSA-N
• SMILES:
  CACTVS 3.341: [Ca++]
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Ca+2]
• Formula: Ca
• Name: CALCIUM ION
• DrugBank: DB14577
• PDB chain: 1h3j Chain B Residue 403

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1h3j Impact of the Physical and Chemical Environment on the Molecular Structure of Coprinus Cinereus Peroxidase
• Resolution: 2.0 Å
• Binding residue (original residue number in PDB): S184 D201 T203 V206 D208
• Binding residue (residue number reindexed from 1): S177 D194 T196 V199 D201
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): R51 H55 H183 L200
• Catalytic site (residue number reindexed from 1): R44 H48 H176 L193
• Enzyme Commision number: 1.11.1.7: peroxidase.

Gene Ontology

Molecular Function

• GO:0004601 peroxidase activity
• GO:0020037 heme binding
• GO:0046872 metal ion binding
• GO:0140825 lactoperoxidase activity

Biological Process

• GO:0000302 response to reactive oxygen species
• GO:0006979 response to oxidative stress
• GO:0034599 cellular response to oxidative stress
• GO:0042744 hydrogen peroxide catabolic process
• GO:0098869 cellular oxidant detoxification

Cellular Component

• GO:0005576 extracellular region

External links

• PDB: RCSB:1h3j, PDBe:1h3j, PDBj:1h3j
• PDBsum: 1h3j
• PubMed: 12777760
• UniProt: P28314|PER_COPCI Peroxidase (Gene Name=CIP1)