Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.4.21.1 (chymotrypsin)
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Endo-beta-N-acetylglucosaminidase from Arthrobacter protophormiae was tested for its capacity to release N-linked sugar chains from native yeast invertase. The enzyme liberated about 80% of the sugar chains from the native invertase. Deglycosylated invertase was digested by chymotrypsin or pepsin, and twelve N-acetylglucosamine-containing glycopeptides were isolated. The amino acid sequences of these glycopeptides were analyzed by a protein sequencer, and the elution position of 4-L-aspartylglycosylamine was directly identified by conventional sequencing. The endo-beta-N-acetylglucosaminidase was found to remove mainly nine sugar chains from native invertase.
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PMID:Determination of glycosylation sites using a protein sequencer and deglycosylation of native yeast invertase by endo-beta-N-acetylglucosaminidase. 180 2