Cross-induction of the L-fucose system by L-rhamnose in Escherichia coli
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منابع مشابه
Cross-induction of the L-fucose system by L-rhamnose in Escherichia coli.
Dissimilation of L-fucose as a carbon and energy source by Escherichia coli involves a permease, an isomerase, a kinase, and an aldolase encoded by the fuc regulon at minute 60.2. Utilization of L-rhamnose involves a similar set of proteins encoded by the rha operon at minute 87.7. Both pathways lead to the formation of L-lactaldehyde and dihydroxyacetone phosphate. A common NAD-linked oxidored...
متن کاملThe L-rhamnose genetic system in Escherichia coli K-12.
N 1961 JACOB and MONOD reviewed the general state of our knowledge con’ cerning genetic regulatory mechanisms involved in protein synthesis. They cited evidence that the induction of the lactose utilizing enzymes in Escherichia coli was mediated through the inactivation of an internal repressor by the externally given inducer. Such a model of “negative control” implies that there is no other re...
متن کاملMetabolism of L-fucose and L-rhamnose in Escherichia coli: aerobic-anaerobic regulation of L-lactaldehyde dissimilation.
L-Lactaldehyde is a branching point in the metabolic pathway of L-fucose and L-rhamnose utilization. Under aerobic conditions, L-lactaldehyde is oxidized to L-lactate by the enzyme lactaldehyde dehydrogenase, while under anaerobic conditions, L-lactaldehyde is reduced to L-1,2-propanediol by the enzyme propanediol oxidoreductase. Aerobic growth on either of the methyl pentoses induces a lactald...
متن کاملMetabolism of L-rhamnose by Escherichia coli. I. L-rhamnose isomerase.
The methyl pentose, L-rhamnose, is known to be fermented by a number of bacteria, but little information is available concerning the metabolic steps involved in this fermentation. An indication of the pathway of rhamnose metabolism was provided by the finding of Kluyver and Schnellen (1937) that propylene glycol was a major product in the fermentation by Bacillus rhamnosifermentans. Since 50 pe...
متن کاملBacterial dissimilation of L-fucose and L-rhamnose.
Eagon, R. G. (University of Georgia, Athens). Bacterial dissimilation of l-fucose and l-rhamnose. J. Bacteriol. 82:548-550. 1961.-Of 33 microorganisms screened for the ability to utilize the methylpentoses, l-fucose and l-rhamnose, 18 species utilized one or both methylpentoses. The majority of the bacterial species capable of utilizing these methylpentoses did so by isomerization of the methyl...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1987
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.169.8.3712-3719.1987