Project description:Rhodobacter capsulatus SB 1003 belongs to the group of purple nonsulfur bacteria. Its genome consists of a 3.7-Mb chromosome and a 133-kb plasmid. The genome encodes genes for photosynthesis, nitrogen fixation, utilization of xenobiotic organic substrates, and synthesis of polyhydroxyalkanoates. These features made it a favorite research tool for studying these processes. Here we report its complete genome sequence.
Project description:The diazotrophic bacterium Rhodobacter capsulatus is able to synthesize two nitrogenases, a molybdenum-dependent and an alternative Mo-free iron-only nitrogenase, enabling growth with molecular dinitrogen (N2) as sole nitrogen source. The Mo response of the wild type and a mutant lacking the high-affinity molybdate transporter, ModABC, were analyzed by proteome profiling.
Project description:The diazotrophic bacterium Rhodobacter capsulatus synthesizes a molybdenum nitrogenase and an alternative iron-only nitrogenase, enabling growth with molecular dinitrogen as sole nitrogen source. Regulation of nitrogen fixation was analyzed by proteome profiling of wild-type and mutant strains lacking the transcriptional regulators NifA, AnfA, and MopAB.
