Regulation of Glyoxylate Metabolism in Escherichia coli K-12
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چکیده
منابع مشابه
Regulation of glyoxylate metabolism in Escherichia coli K-12.
The relative contributions of the dicarboxylic acid and the tricarboxylic acid cycles to the oxidative catabolism of glyoxylate in Escherichia coli K-12 were deduced by analysis of mutant strains that were blocked in the formation of glyoxylate carboligase and of malate synthase G (the "glycolate form" of malate synthase). Mutant strains unable to form malate synthase G were unimpaired in their...
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The expression of the glyoxylate shunt enzymes is required for growth of Escherichia coli on acetate or fatty acids as a sole carbon source. The genes for the two unique enzymes of the glyoxylate shunt, aceA and aceB, are located at 90 min on the E. coli K-12 genetic map. Polar mutations in the aceB gene eliminate aceA gene function, suggesting that these genes constitute an operon and the dire...
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Studies involving lambda phage transduction of the D-arabinose utilization gene (dar+) in Escherichia coli K-12 indicated the product of this gene to be a transdominant activator. An apparent anomaly regarding this hypothesis exists in that a diploid recessive lysogen (lambda dar-/dar-) can spontaneously become capable of growth on D-arabinose.
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An acidimetric method is proposed to distinguish between carbon dioxide and carbonic acid as the primary product of enzymic decarboxylation reactions. Application of this method to the thiamine pyrophosphate-requiring Escherichia coli glyoxylate carboligase reaction (the decarboxylating condensation of glyoxylate to yield hydroxymalonic semialdehyde) at pH 8 shows a transient disappearance of p...
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SYSTEM of genetic transduction has been discovered in the sexually fertile A K-12 strain of Escherichia coli. This transduction is mediated by lambda, a temperate phage for which K-12 is normally lysogenic. The distinctive features of the lambda-K-12 system include the following: (1) The transductions are limited to a cluster of genes for galactose fermentation. The GaZ loci are closely linked ...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1969
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.98.3.1098-1108.1969