Quercetin modulates activities of Taiwan cobra phospholipase A2via its effects on membrane structure and membrane-bound mode of phospholipase A2
β Scribed by Chiou, Yi-Ling; Lin, Shinne-Ren; Hu, Wan-Ping; Chang, Long-Sen
- Book ID
- 113094051
- Publisher
- Indian Academy of Sciences
- Year
- 2012
- Tongue
- English
- Weight
- 434 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0250-5991
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## Abstract In the present study, three Taiwan cobra PLA~2~ variants were prepared by adding an extra __N__βterminal Met, substituting Asnβ1 by Met or deleting the __N__βterminal heptapeptide. Recombinant PLA~2~ mutants were expressed in __Escherichia coli__ (__E. coli__), and purified to homogenei
Modification of His-47 and removal of the N-terminal octapeptide caused a different effect on the structure of Naja naja atra (Taiwan cobra) phospholipase A2 (PLA2). Unlike native enzyme, Ca2+ induced an alteration in the structural flexibility of His-modified PLA2. Moreover, the spatial positions o