| PNGase F | Peptide N-glycosidase F |
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| glycosidase | <enzyme> General and imprecise term for an enzyme that breaks up and degrades complex sugar subunits of a polysaccharide such as starch or sucrose into simple ones, such as glucose or fructose. Widely used in food processing. It may distinguish between alpha and beta links but is not very substrate specific. (13 Nov 1997) |
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| glycosidases | A class of hydrolytic enzymes that act on glycosides; alpha-glycosidases act on alpha-glycosidic linkages (e.g., alpha-amylase) while beta-glycosidases act on beta-glycosidic linkages (e.g., beta-glucosidase). (05 Mar 2000) |
| RNA N-glycosidase | <enzyme> Catalyses hydrolysis of a single adenosine glycosidic bond; probable cause of toxic effect of vero toxin from E coli by inactivating 60s ribosomal subunit Registry number: EC 3.2.2.- Synonym: RNA glycosylase (26 Jun 1999) |
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| cytosine-DNA glycosidase | <enzyme> Acts on uv-irradiated DNA at modified cytosine residues which are not pyrimidine dimers Registry number: EC 3.2.2.- Synonym: cytosine-DNA glycosylase (26 Jun 1999) |
| Sulfolobus solfataricus beta-glycosidase | <enzyme> Has broad specificity against beta(1-4), beta(1-3), and beta(1-6)-o-glucosides and hydrolyzes oligosaccharides from the non-reducing end; amino acid sequence given in first source;swiss-prot p22498 Registry number: EC 3.2.1.- Synonym: ssbeta-gly, beta-glycosidase, sulfolobus (26 Jun 1999) |
| DNA N-glycosidase | <enzyme> Excises 3-methyladenine from alkylated DNA leaving an apurinic site with both 3' and 5' phosphodiester bonds intact, a preparatory step for nucleotide excision repair; excises hypoxanthine from deaminated DNA and polydeoxyribonucleotides; prefer EC 3.2.2.20 or EC 3.2.2.21 Registry number: EC 3.2.2.- Synonym: DNA glycosylase, methylpurine DNA glycosylase (26 Jun 1999) |
| quercitrin glycosidase | <enzyme> Induced in cultured cell-free microbial preparations from human feces; quercitrin hydrolysed to quercetin Registry number: EC 3.2.1.- (26 Jun 1999) |
| O(2)-methylthymine-DNA glycosidase | <enzyme> Repairs o(2)-methylthymidine residues in DNA Registry number: EC 3.2.2.- Synonym: mth-DNA glycosidase (26 Jun 1999) |
| uracil-DNA glycosidase | <enzyme> Catalyses hydrolysis of n-glycosidic bond of damaged nucleotide residues to give free uracil and partly depyrimidinated DNA of unaltered chain length; does not cleave phosphodiester bonds; a DNA repair enzyme Registry number: EC 3.2.2.- Synonym: ura-DNA glycosidase, uracil-DNA glycosylase, uracil n-glycosidase, ura-DNA glycosylase, uracil n-glycosylase (26 Jun 1999) |
| glycosidase |
[EC 3.2] any of a large subclass of enzymes of the hydrolase class that catalyze the cleavage of hemiacetal bonds of glycosides; most are of broad specificity.
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