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Comparison of some properties of red cell peptidase A from weak and strong activity phenotypes

Comparison of some properties of red cell peptidase A from weak and strong activity phenotypes SUMMARY Partially purified preparations of red‐cell peptidase A obtained from individuals with very weak and relatively strong activities have been compared, in order to see whether qualitative differences between the enzymes attributable to different alleles could be identified. It was found that the enzymes obtained both from the weak‐ and strong‐activity phenotypes were very similar in their pH‐activity curves, Michaelis constants, and elution profiles from DEAE‐cellulose and CM‐Sephadex columns. In comparisons of thermostability no marked differences were observed, but there was a suggestion that the enzyme in the weak‐activity phenotype may be slightly more thermostable than the enzyme in the strong‐activity phenotype. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of Human Genetics Wiley

Comparison of some properties of red cell peptidase A from weak and strong activity phenotypes

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References (12)

Publisher
Wiley
Copyright
Copyright © 1971 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0003-4800
eISSN
1469-1809
DOI
10.1111/j.1469-1809.1971.tb00244.x
Publisher site
See Article on Publisher Site

Abstract

SUMMARY Partially purified preparations of red‐cell peptidase A obtained from individuals with very weak and relatively strong activities have been compared, in order to see whether qualitative differences between the enzymes attributable to different alleles could be identified. It was found that the enzymes obtained both from the weak‐ and strong‐activity phenotypes were very similar in their pH‐activity curves, Michaelis constants, and elution profiles from DEAE‐cellulose and CM‐Sephadex columns. In comparisons of thermostability no marked differences were observed, but there was a suggestion that the enzyme in the weak‐activity phenotype may be slightly more thermostable than the enzyme in the strong‐activity phenotype.

Journal

Annals of Human GeneticsWiley

Published: Feb 1, 1971

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