Regulation of methanol and methylamine dehydrogenases in Methylophilus methylotrophus
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چکیده
منابع مشابه
Organization of the methylamine utilization (mau) genes in Methylophilus methylotrophus W3A1-NS.
The organization of genes involved in utilization of methylamine (mau genes) was studied in Methylophilus methylotrophus W3A1. The strain used was a nonmucoid variant termed NS (nonslimy). The original mucoid strain was shown to be identical to the NS strains on the basis of chromosomal digest and hybridization patterns. An 8-kb PstI fragment of the chromosome from M. methylotrophus W3A1-NS enc...
متن کاملThe periplasmic modifier protein for methanol dehydrogenase in the methylotrophs Methylophilus methylotrophus and Paracoccus denitrificans.
A modifier protein (M-protein), which increases the affinity of methanol dehydrogenase (MDH) for alcohols but decreases its affinity for formaldehyde, has been partially purified from Methylophilus methylotrophus and Paracoccus denitrificans. Analysis was complicated by non-protein factors in bacterial extracts that are able to mimic M-protein in one of its functions-that of increasing the acti...
متن کاملDisruption of metF increased L-lysine production by Methylophilus methylotrophus from methanol.
Methionine auxotrophic mutants of Methylophilus methylotrophus AS1 expressing a mutant form of dapA (dapA24) encoding a dihydrodipicolinate synthase desensitized from feedback inhibition by L-lysine, and mutated lysE (lysE24) encoding the L-lysine exporter from Corynebacterium glutamicum 2256, produced higher amounts of L-lysine from methanol as sole carbon source than did other amino acid auxo...
متن کاملRespiration-linked proton translocation in the obligate methylotroph Methylophilus methylotrophus.
The stoicheiometries of respiration-linked proton translocation in Methylophilus methylotrophus were determined by using both the oxygen-pulse and initial-rate methods. The latter has also been used to determine leads to charge/O quotients (measured as yield K+/O quotients) in order to ascertain whether the leads to H+/O quotients might be underestimated by H+/anion symport. The results suggest...
متن کاملImprovement of L-lysine production by Methylophilus methylotrophus from methanol via the Entner-Doudoroff pathway, originating in Escherichia coli.
To improve the amino acid production by metabolic engineering, eliminating the pathway bottleneck is known to be very effective. The metabolic response of Methylophilus methylotrophus upon the addition of glucose and of pyruvate was investigated in batch cultivation. We found that the supply of pyruvate is a bottleneck in L-lysine production in M. methylotrophus from methanol as carbon source. ...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1990
ISSN: 0378-1097
DOI: 10.1016/0378-1097(90)90131-9