Clam derived proteinases

Details Clam derived proteinases Clam derived proteinases

1984-12-18

1987-06-30

Naff, David M.

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

Hydrolase

426 36, 426 56, 426 63, 435219, 435815, 435816, C12N 964, C12N 950, A23C 1904, A23L 131

Patent

active

046770690

ABSTRACT:
This invention relates to three enzymes, their isolation from the viscera of bivalves, e.g. the surf clam or cherrystone clam, their characterization and uses. The first two are carboxyl proteinases having molecular weights of about 77,200 and about 36,700 and display activity similar to mammalian D-cathepins. The third is a thiol proteinase having a molecular weight of about 17,400 and displays activity similar to mammalian B-cathepins. In addition to attaching various substrates, the enzymes coagulate cheese milk and tenderize meat.

REFERENCES:
Characterization and Select Applications of Proteolytic Enzymes Extracted and Purified with Clam Viscera; Ph. D. Thesis of Hung-Chang Chen, dated Aug. 1984.
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