A UNIQUE STRUCTURAL FEATURE OF A PHOSPHOLIPASE-A2 IS PROBED BY MOLECULAR-DYNAMICS

被引：3

作者：

DEMARET, JP ^{[1
]}

BRUNIE, S ^{[1
]}

机构：

[1] ECOLE POLYTECH,BIOCHIM LAB,CNRS,URA 240,F-91128 PALAISEAU,FRANCE

来源：

JOURNAL OF MOLECULAR GRAPHICS | 1992年 / 10卷 / 04期

关键词：

MOLECULAR DYNAMICS; MOLECULAR MECHANICS; MOLECULAR MODELING; PHOSPHOLIPASE-A2;

D O I：

10.1016/0263-7855(92)80079-S

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The unusual catalytic network, revealed by the crystal structure of one of the two phospholipases A2 (PLA2) from the venom of the crotalid A. p. piscivorus has been probed using molecular dynamics. The catalytic network has been remodeled to a conformation similar to that found in all other PLA2, and the modeled structure has been submitted to energy minimization and molecular dynamics simulation, to explore the conformational space of the network. The calculations have yielded a large reorganization of the catalytic network, which gets a conformation close to that of the crystal structure. These results suggest that the unusual catalytic network observed in the studied PLA2 is a structural feature of the protein and not a crystal artifact.

引用

页码：257 / 260

页数：4

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