Does single-amino-acid replacement work in favor of or against improvement of the thermostability of immobilized enzyme?

نویسندگان

  • J Koizumi
  • M Zhang
  • T Imanaka
  • S Aiba
چکیده

Thermostabilities of kanamycin nucleotidyltransferase and of its mutants that became thermostable, in the free state, because of single-amino-acid replacements were studied after immobilization of the enzymes on cyanogen bromide-activated Sephadex G-200 particles. Lys in place of Gln at position 102 decreased the thermostability of the immobilized enzyme, whereas replacement with other amino acids enhanced it.

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عنوان ژورنال:
  • Applied and environmental microbiology

دوره 56 11  شماره 

صفحات  -

تاریخ انتشار 1990