Enzymatic properties of the membrane-bound NADH oxidase system in the aerobic respiratory chain of Bacillus cereus.
In: Journal of biochemistry and molecular biology, Jg. 37 (2004-11-30), Heft 6, S. 753
academicJournal
Zugriff:
Membranes prepared from Bacillus cereus KCTC 3674, grown aerobically on a complex medium, oxidized NADH exclusively, whereas deamino-NADH was little oxidized. The respiratory chain-linked NADH oxidase exhibited an apparent K(m) value of approximately 65 microM for NADH. The maximum activity of the NADH oxidase was obtained at about pH 8.5 in the presence of 0.1 M KCl (or NaCl). Respiratory chain inhibitor 2-heptyl-4-hydroxyquinoline-N-oxide (HQNO) inhibited the activity of the NADH oxidase by about 90% at a concentration of 40 microM. Interestingly, rotenone and capsaicin inhibited the activity of the NADH oxidase by about 60% at a concentration of 40 microM and the activity was also highly sensitive to Ag(+).
Titel: |
Enzymatic properties of the membrane-bound NADH oxidase system in the aerobic respiratory chain of Bacillus cereus.
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Autor/in / Beteiligte Person: | Kim, MS ; Kim, YJ |
Zeitschrift: | Journal of biochemistry and molecular biology, Jg. 37 (2004-11-30), Heft 6, S. 753 |
Veröffentlichung: | 2003- : Seoul Berlin ; New York : Korean Society for Biochemistry and Molecular Biology ; Distributed by Springer ; <i>Original Publication</i>: Seoul : Biochemical Society of the Republic of Korea,, 2004 |
Medientyp: | academicJournal |
ISSN: | 1225-8687 (print) |
DOI: | 10.5483/bmbrep.2004.37.6.753 |
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