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| Content Provider | PubMed Central |
|---|---|
| Author | Nunn, D. N. Lidstrom, M. E. |
| Abstract | Twenty-five methanol oxidation mutants of the facultative methylotroph Methylobacterium sp. strain AM1 have been characterized by complementation analysis and assigned to 10 complementation groups, Mox A1, A2, A3, and B through H (D. N. Nunn and M. E. Lidstrom, J. Bacteriol. 166:582-591, 1986). In this study we have characterized each of the mutants belonging to the 10 Mox complementation groups for the following criteria: phenazine methosulfate-dichlorophenolindophenol dye-linked methanol dehydrogenase activity; methanol-dependent whole-cell oxygen consumption; the presence or absence of methanol dehydrogenase protein by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and Western blotting; the absorption spectra of purified mutant methanol dehydrogenase proteins; and the presence or absence of the soluble cytochrome c proteins of Methylobacterium sp. strain AM1, as determined by reduced-oxidized difference spectra and sodium dodecyl sulfate-polyacrylamide gel electrophoresis. With this information, we have proposed functions for each of the genes deficient in the mutants of the 10 Mox complementation groups. These proposed gene functions include two linked genes that encode the methanol dehydrogenase structural protein and the soluble cytochrome cL, a gene encoding a secretion function essential for the synthesis and export of methanol dehydrogenase and cytochrome cL, three gene functions responsible for the proper association of the pyrrolo-quinoline quinone prosthetic group with the methanol dehydrogenase apoprotein, and four positive regulatory gene functions controlling the expression of the ability to oxidize methanol. |
| Starting Page | 591 |
| File Format | |
| ISSN | 10985530 |
| e-ISSN | 10985530 |
| Journal | Journal of Bacteriology |
| Issue Number | 2 |
| Volume Number | 166 |
| Language | English |
| Publisher Date | 1986-05-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Molecular Biology Microbiology |
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