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. 1976 May 1;155(2):375–381. doi: 10.1042/bj1550375

Separation of rat muscle aminopeptidases.

M E Parsons, R J Pennington
PMCID: PMC1172843  PMID: 938487

Abstract

By means of chromatography on DEAE-Sephadex, two arylamidases (hydrolysing L-arginine 2-naphthylamide) and three dipeptidyl peptidases (hydrolysing dipeptide 2-naphthylamides) were distinguished in extracts of rat muscle. However, the arylamidase from the larger peak also hydrolysed the dipeptide 2-naphthylamides. Glycyl-L-arginine amide, an alternative substrate for dipeptidyl peptidase I, was not hydrolysed by arylamidase. L-Leucine amide was hydrolysed by an enzyme, presumed to be leucine aminopeptidase, from a separate peak, but was also hydrolysed by arylamidase. Arylamidase, dipeptidyl peptidase III and most of the leucine aminopeptidase could be extracted from the muscle with a neutral salt solution, but dipeptidyl peptidase I was extracted only in the presence of Triton X-100; dipeptidyl peptidase II showed an intermediate extraction behaviour.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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