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Cloning, sequencing, and mutation of a gene for azurin in Methylobacillus flagellatum KT.

By E R Gak, A Y Chistoserdov and M E Lidstrom

Abstract

The gene cluster for methylamine utilization (mau genes) has been cloned from the obligate methylotrophic bacterium Methylobacillus flagellatum KT. Partial sequence data showed that the organization of these genes was similar to that found in Methylophilus methylotrophus W3A1-NS, including the lack of a gene for amicyanin, which had been thought to be the electron acceptor for methylamine dehydrogenase in M. flagellatum KT. However, a gene encoding azurin was discovered at the 3' end of the mau gene cluster, transcribed in the opposite orientation. A mutant with a defect in this gene showed impaired growth on methylamine, suggesting that azurin is involved in methylamine oxidation in M. flagellatum KT

Topics: Research Article
Year: 1995
DOI identifier: 10.1128/jb.177.15.4575-4578.1995
OAI identifier: oai:pubmedcentral.nih.gov:177219
Provided by: PubMed Central
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