Superoxide dismutase from nitrogen-fixing Azotobacter chroococcum: purification, characterization, and intracellular location
- 1 April 1980
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Microbiology
- Vol. 26 (4) , 441-447
- https://doi.org/10.1139/m80-073
Abstract
Superoxide dismutase (SOD, EC 1.15.1.1) from nitrogen-fixing Azotobacter chroococcum was purified and identified as being similar to the manganese SOD of other procaryotes. The enzyme was relatively thermostable and insensitive to cyanide. A molecular weight of approximately 33 000 was estimated. Superoxide dismutase was found to be cytoplasmic (not bound to cell membranes) in A. chroococcum, but some enzyme was released by sonication of membrane vesicles.This publication has 1 reference indexed in Scilit:
- Involvement of the cytoplasmic membrane in nitrogen fixation by azotobacter vinelandiiEuropean Journal of Biochemistry, 1977