› 1kqu

X-ray diffraction
2.1Å resolution

Human phospholipase A2 complexed with a substrate anologue

Released:
DOI: 10.2210/pdb1kqu/pdb
PDB entry 1kqu coloured by chain, front view.
PDB entry 1kqu coloured by chain, side view.
PDB entry 1kqu coloured by chain, top view.
Source organism: Homo sapiens
Primary publication:
D-Tyrosine as a chiral precusor to potent inhibitors of human nonpancreatic secretory phospholipase A2 (IIa) with antiinflammatory activity.
Hansford KA, Reid RC, Clark CI, Tyndall JD, Whitehouse MW, Guthrie T, McGeary RP, Schafer K, Martin JL, Fairlie DP
Chembiochem 4 181-5 (2003)
PMID: 12616631

Function and Biology Details

Reaction catalysed: 
Phosphatidylcholine + H(2)O = 1-acylglycerophosphocholine + a carboxylate
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-146964 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Phospholipase A2, membrane associated Chain: A
Molecule details ›
Chain: A
Length: 124 amino acids
Theoretical weight: 13.95 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P14555 (Residues: 21-144; Coverage: 100%)
Gene names: PLA2B, PLA2G2A, PLA2L, RASF-A
Sequence domains: Phospholipase A2
Structure domains: Phospholipase A2 domain

Ligands and Environments

2 bound ligands:
Ligand CA 2 x CA
Ligand BR4 1 x BR4
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: P6122
Unit cell:
a: 76.55Å b: 76.55Å c: 93.46Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.209 0.209 0.24
Expression system: Escherichia coli

Quick links

Citations

5 review citations

Phospholipase A2 enzymes: physical structure, biological function, disease implication, chemical inhibition, and therapeutic intervention.
Dennis et al. (2011)
4 more

12 mentions without citation

A system-level investigation into the mechanisms of Chinese Traditional Medicine: Compound Danshen Formula for cardiovascular disease treatment.
Li et al. (2012)
11 more