Structure of PDB 1qd6 Chain D Binding Site BS02

Receptor Information

>1qd6 Chain D (length=239) Species: 562 (Escherichia coli)

TLYPYDTNYLIYTQTSDLNKEAIASYDWAENARKDEVKFQLSLAFPLWRG
ILGPNSVLGASYTQKSWWQLSNSEESSPFRETNYEPQLFLGFATDYRFAG
WTLRDVEMGYNHDSNGRSDPTSRSWNRLYTRLMAENGNWLVEVKPWYVVG
NTDDNPDITKYMGYYQLKIGYHLGDAVLSAKGQYNWNTGYGGAELGLSYP
ITKHVRLYTQVYSGYGESLIDYNFNQTRVGVGVMLNDLF

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: 1qd6 Chain C Residue 2

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1qd6 Structural evidence for dimerization-regulated activation of an integral membrane phospholipase.
• Resolution: 2.1 Å
• Binding residue (original residue number in PDB): R147 S152
• Binding residue (residue number reindexed from 1): R117 S122
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): S106 H142 S144 G146 R147 S152 N156
• Catalytic site (residue number reindexed from 1): S76 H112 S114 G116 R117 S122 N126
• Enzyme Commision number: 3.1.1.32: phospholipase A1.
  3.1.1.4: phospholipase A2.

Gene Ontology

Molecular Function

• GO:0004620 phospholipase activity

Biological Process

• GO:0006629 lipid metabolic process

Cellular Component

• GO:0016020 membrane

External links

• PDB: RCSB:1qd6, PDBe:1qd6, PDBj:1qd6
• PDBsum: 1qd6
• PubMed: 10537112
• UniProt: P0A921|PA1_ECOLI Phospholipase A1 (Gene Name=pldA)