| Literature DB >> 7980388 |
K T Eisses1, S L Davies, G K Chambers.
Abstract
Purified thermostable alcohol dehydrogenase allozymes ADH-71k and ADH-FCh.D. of Drosophila melanogaster have been compared with the two common enzyme forms ADH-F and ADH-S. Enzyme kinetic parameters for various primary and secondary alcohols were determined under standard conditions used previously. Both ADH-71k and ADH-FCh.D. show ADH-S-like reaction kinetics and Km values, due to retrograde evolution at site 214, Pro-->Ser. Inhibition studies with alcohol dehydrogenase inhibitors pyrazole, 4-methylpyrazole, and cibacron blue 3GA were also performed. Activity measurements on crude extracts of larvae and flies from isogenic lines of ADH-FCh.D. revealed a consistently higher activity than in ADH-71k-containing strains, in contrast to the original strains.Entities:
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Year: 1994 PMID: 7980388 DOI: 10.1007/BF00554418
Source DB: PubMed Journal: Biochem Genet ISSN: 0006-2928 Impact factor: 1.890