O glycosidase

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Contents

Used for

alpha L fucosidase, amylo 1,6 glucosidase, carbohydrase, L iduronidase, sucrase, trehalase

See for

EC 3.2.1

Broader Terms

glycosidase

Narrower Terms

alpha galactosidase, alpha glucosidase, amylase, beta fructofuranosidase, beta galactosidase, beta glucosidase, beta glucuronidase, beta N acetylhexosaminidase, exo alpha sialidase, glucan 1,4 alpha glucosidase, glucosylceramidase, hyaluronidase, lactase, lysozyme, mannosidase, N acetylglucosaminidase

Facts (generated by robot; please edit if you find it inaccurate)

  • Specific Activity One unit of O-Glycosidase is defined as the amount of enzyme required to produce 1 mole of p-nitrophenol (pNP) in 1 minute at 37C, pH 5.
  • However, it should be noted that the specificity of O-glycosidase is limited to cleaving only the disaccharide unit Gal-[beta](1-3)-GalNAc from O-linked oligosaccharides (9) and thus may not cleave the types of O-linked glycans that might be present on gO.
  • O-Glycosidase is known to cleave only glycans which contain the mucin-type core 1 structure Gal[beta]1-3GalNAc[alpha]1-Ser/Thr.
  • As O-glycosidase is known not to tolerate any substitution on Gal or on GalNAc, gp40 was desialylated prior to incubation with O-glycosidase treatment.
  • 13 Da), on the serine/threonine residues before, but not after, treatment with Endo-O-glycosidase is useful in identifying O-glycan sites.

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