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Trans-cyclization of phosphatidylinositol catalyzed by phospholipase C from Streptomyces antibioticus

Journal of the American Chemical Society, ISSN: 0002-7863, Vol: 131, Issue: 24, Page: 8362-8363
2009
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Article Description

(Chemical Equation Presented) Calcium-dependent phosphatidylinositol- specific phospholipase C from Streptomyces antibioticus (saPLC1) catalyzes the cleavage of phosphatidylinositol (PI) by an unusual mechanism involving a 1,6-cyclization with formation of inositol trans-1,6-cyclic phosphate (1,6-IcP), rather then inositol cis-1,2-cyclic phosphate (1,2-IcP). This conclusion has been reached based on the comparison of the released cyclic phosphate intermediate by the H16A mutant of saPLC1 with a genuine 1,6-IcP synthesized by a chemoenzymatic approach. Copyright © 2009 American Chemical Society.

Bibliographic Details

Bai, Chuan; Zhao, Li; Rebecchi, Mario; Tsai, Ming-Daw; Bruzik, Karol S

American Chemical Society (ACS)

Chemical Engineering; Chemistry; Biochemistry, Genetics and Molecular Biology

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