Bacillus megaterium CcpA does not cross-complement Escherichia coli FruR
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چکیده
منابع مشابه
The cortical peptidoglycan from spores of Bacillus megaterium and Bacillus subtilis is not highly cross-linked.
Determination by amino acid analyses of the percentage of diaminopimelic acid in the spore cortex of Bacillus megaterium and Bacillus subtilis which is involved in interpeptide cross-links gave values of 31 to 37%. This finding supports the idea that the cortex volume could undergo significant changes in response to changes in pH or ionic strength and could thus play an active role in reducing ...
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Gas vesicles are intracellular, protein-coated, and hollow organelles found in cyanobacteria and halophilic archaea. They are permeable to ambient gases by diffusion and provide buoyancy, enabling cells to move upwards in liquid to access oxygen and/or light. In halobacteria, gas vesicle production is encoded in a 9-kb cluster of 14 genes (4 of known function). In cyanobacteria, the number of g...
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Five mutations in ccpA of Bacillus megaterium with impaired functions were analysed for carbon catabolite repression. The phenotypes support the hypothesis that CcpA assumes a PurR/LacI fold. The completely inactive mutants CcpA119GE and CcpA326am cause alterations which are incompatible with that fold. A mutation with reduced activity, CcpA81GE, affects a site that would be partially surface e...
متن کامل13N isotope studies on the pathway of ammonia assimilation in Bacillus megaterium and Escherichia coli.
The pathway of ammonia incorporation into amino acids was studied by use of 13N-ammonium ions in Bacillus megaterium and Escherichia coli that had been grown aerobically on a minimal salts medium containing NH4Cl as the source of nitrogen. Anion- and cation-exchange high-pressure-liquid chromatography was used to separate amino acids relevant to the several possible pathways for ammonia assimil...
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ژورنال
عنوان ژورنال: Microbiology
سال: 1995
ISSN: 1350-0872,1465-2080
DOI: 10.1099/13500872-141-10-2353