The fixA and fixB Genes Are Necessary for Anaerobic Carnitine Reduction in Escherichia coli
AUTOR(ES)
Walt, Angelique
FONTE
American Society for Microbiology
RESUMO
In Escherichia coli, the use of carnitine as a terminal electron acceptor depends on a functional caiTABCDE operon. It had been suggested that the adjacent but divergent fixABCX operon is also required for carnitine metabolism, perhaps to provide electrons for carnitine reduction. We have constructed E. coli fixA and fixB mutants and find that they are unable to reduce carnitine to γ-butyrobetaine under anaerobic conditions.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=135185Documentos Relacionados
- Genetic and structural analysis of the Rhizobium meliloti fixA, fixB, fixC, and fixX genes.
- Regulation of the fixA gene and fixBC operon in Bradyrhizobium japonicum.
- Regulation of the Carnitine Pathway in Escherichia coli: Investigation of the cai-fix Divergent Promoter Region
- Rhizobium meliloti regulatory gene fixJ activates transcription of R. meliloti nifA and fixK genes in Escherichia coli.
- The pgpA and pgpB genes of Escherichia coli are not essential: evidence for a third phosphatidylglycerophosphate phosphatase.