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Purification of human renin by affinity chromatography using a new peptide inhibitor of renin, H.77 (D-His-Pro-Phe-His-LeuR-Leu-Val-Tyr).


ABSTRACT: A new affinity column for renin was prepared by coupling the isosteric peptide inhibitor of renin, H.77 (D-His-Pro-Phe-His-LeuR-Leu-Val-Tyr, where R is a reduced isosteric bond, -CH2-NH-), to activated 6-aminohexanoic acid-Sepharose 4B. Chromatography of a crude extract of human kidney cortex on this material resulted in a 5500-fold purification of renin in 76% yield. The purified enzyme (specific activity 871 units/mg) was free of non-specific acid-proteinase activity and was stable at pH 6.8 and -20 degrees C over a period of several weeks.

SUBMITTER: McIntyre GD 

PROVIDER: S-EPMC1154389 | biostudies-other | 1983 May

REPOSITORIES: biostudies-other

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