1poc

From Proteopedia

CRYSTAL STRUCTURE OF BEE-VENOM PHOSPHOLIPASE A2 IN A COMPLEX WITH A TRANSITION-STATE ANALOGUE

Structural highlights

1poc is a 1 chain structure with sequence from Apis mellifera. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PA2_APIME PLA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The 2.0 angstroms crystal structure of a complex containing bee-venom phospholipase A2 (PLA2) and a phosphonate transition-state analogue was solved by multiple isomorphous replacement. The electron-density map is sufficiently detailed to visualize the proximal sugars of the enzyme's N-linked carbohydrate and a single molecule of the transition-state analogue bound ot its active center. Although bee-venom PLA2 does not belong to the large homologous Class I/II family that encompasses most other well-studied PLA2s, there is segmental sequence similarity and conservation of many functional substructures. Comparison of the bee-venom enzyme with other phospholipase structures provides compelling evidence for a common catalytic mechanism.

Crystal structure of bee-venom phospholipase A2 in a complex with a transition-state analogue.,Scott DL, Otwinowski Z, Gelb MH, Sigler PB Science. 1990 Dec 14;250(4987):1563-6. PMID:2274788^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Scott DL, Otwinowski Z, Gelb MH, Sigler PB. Crystal structure of bee-venom phospholipase A2 in a complex with a transition-state analogue. Science. 1990 Dec 14;250(4987):1563-6. PMID:2274788