[NAD-dependent formate dehydrogenase from methylotrophic bacteria. Isolation and properties]

Autor: Iu V, Rodionov, T V, Avilova, E V, Zakharova, L S, Platonenkova, A M, Egorov, I V, Berezin
Rok vydání: 1977
Předmět:
Zdroj: Biokhimiia (Moscow, Russia). 42(10)
ISSN: 0320-9725
Popis: NAD-Dependent formate dehydrogenase (FDH) has been isolated from methylotrophyc strain Bacterium sp 1 by (NH4)2SO4 fractionation of cell extract, ion-exchange chromatography and preparative isotachophoresis. Preparation of FDH is homogeneous in analytical polyacrylamide gel electrophoresis and under ultracentrifugation. Sedimentation coefficient of FDH is 4.9S. Mikhaelis constants are 1.1-10(-4) M for NAD and 1.5-10(-2) M for formate. In the absence of sulfhydril compounds FDH is unstable, but it is stable in the presence of mercaptoethanol or ditiotreitol.
Databáze: OpenAIRE