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A radioactive method for the measurement of trypsin and trypsin-like activities

Journal Article · · Analytical Biochemistry; (USA)

A simple and highly sensitive method for the assay of trypsin has been developed by making use of the phosphorylated synthetic peptide Leu-Arg-Arg-Ala-Ser-({sup 32}P)-Leu-Gly as substrate. The technique has been adapted from the phosphocellulose method of R. Roskoski, Jr. used for measuring of protein kinases. In addition to measuring the activity of trypsin at the microgram level, the {sup 32}P-labeled peptide method can be used for measuring other trypsin-like enzymes. It has been successfully utilized for the identification of a new peptidase from the fungus Saccobolus platensis.

OSTI ID:
5673423
Journal Information:
Analytical Biochemistry; (USA), Journal Name: Analytical Biochemistry; (USA) Vol. 179:1; ISSN ANBCA; ISSN 0003-2697
Country of Publication:
United States
Language:
English