N-acetylglucosaminylphosphatidylinositol deacetylase
class of enzymes
In enzymology, a N-acetylglucosaminylphosphatidylinositol deacetylase (EC 3.5.1.89) is an enzyme that catalyzes the chemical reaction
6-(N-acetyl-alpha-D-glucosaminyl)-1-phosphatidyl-1D-myo-inositol + H2O
⇌
{\displaystyle \rightleftharpoons }
6-(alpha-D-glucosaminyl)-1-phosphatidyl-1D-myo-inositol + acetate
Thus, the two substrates of this enzyme are 6-(N-acetyl-alpha-D-glucosaminyl)-1-phosphatidyl-1D-myo-inositol and H2O, whereas its two products are 6-(alpha-D-glucosaminyl)-1-phosphatidyl-1D-myo-inositol and acetate.
This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in linear amides. The systematic name of this enzyme class is 6-(N-acetyl-alpha-D-glucosaminyl)-1-phosphatidyl-1D-myo-inositol acetylhydrolase. Other names in common use include N-acetyl-D-glucosaminylphosphatidylinositol acetylhydrolase, N-acetylglucosaminylphosphatidylinositol de-N-acetylase, GlcNAc-PI de-N-acetylase, GlcNAc-PI deacetylase, and acetylglucosaminylphosphatidylinositol deacetylase. This enzyme participates in 3 metabolic pathways: glycosylphosphatidylinositol(gpi)-anchor, and glycan structures - biosynthesis 2.
References
Doering TL, Masterson WJ, Englund PT, Hart GW (1989). "Biosynthesis of the glycosyl phosphatidylinositol membrane anchor of the trypanosome variant surface glycoprotein. Origin of the non-acetylated glucosamine". J. Biol. Chem.
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