Degradation of ornithine transcarbamylase in sporulating Bacillus subtilis cells
نویسندگان
چکیده
منابع مشابه
Inactivation of aspartic transcarbamylase in sporulating Bacillus subtilis: demonstration of a requirement for metabolic energy.
The aspartic transcarbamylase (ATCase) activity of Bacillus subtilis cells disappears rapidly from stationary-phase cells prior to sporulation. ATCase activity does not appear in the culture fluid during the stationary phase; hence the enzyme appears to be inactivated in the cells. The enzyme is inactivated normally in two different mutants lacking proteases; the activity is very stable in crud...
متن کاملRibonucleic Acids of Bacillus Subtilis Spores and Sporulating Cells.
Doi, Roy H. (Syracuse University, Syracuse N.Y.), and Richard T. Igarashi. Ribonucleic acids of Bacillus subtilus spores and sporulating cells. J. Bacteriol. 87:323-328. 1964.-The ribonucleic acids (RNA) of Bacillus subtilis spores were analyzed for their size and base composition. Soluble and ribosomal RNA identical to those found in vegetative cells were present in spores. A base ratio differ...
متن کاملComplex polar machinery required for proper chromosome segregation in vegetative and sporulating cells of Bacillus subtilis
Chromosome segregation is an essential process of cell multiplication. In prokaryotes, segregation starts with the newly replicated sister origins of replication, oriCs, which move apart to defined positions in the cell. We have developed a genetic screen to identify mutants defective in placement of oriC during spore development in the Gram-positive bacterium Bacillus subtilis. In addition to ...
متن کاملOrnithine Transcarbamylase Deficiency
Accumulation of ammonia in body tissues most commonly occurs in hepatic failure. However, it may also result from a specific deficiency of an enzyme of the urea cycle (Fig., 1). Severe hyperammonaemia has been reported with deficiencies of carbamyl phosphate synthetase (Freeman et al., 1964) and ornithine transcarbamylase (Russell et al., 1962; Levin and Russell, 1967). Some increase in blood a...
متن کاملMedium-dependent alteration of lysine transfer ribonucleic acid in sporulating Bacillus subtilis cells.
The presence of the altered lysine transfer ribonucleic acid (tRNA) in Bacillus subtilis spores is strongly dependent on the medium on which the cells were sporulated. Cells sporulated on synthetic media or dilute complex media contain little or none of the new component, whereas those sporulated on concentrated complex media accumulate the altered tRNA. The accumulation begins during the fifth...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1983
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.155.2.522-530.1983