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M. Chippaux D. Giudici A. Abou-Jaoudé F. Casse M. C. Pascal 《Molecular & general genetics : MGG》1978,160(2):225-229
Summary Mutants of E. coli, completely devoid of nitrite reductase activity with glucose or formate as donor were studied. Biochemical analysis indicates that they are simultaneously affected in nitrate reductase, nitrite reductase, fumarate reductase and hydrogenase activities as well as in cytochrome c552 biosynthesis. The use of an antiserum specific for nitrate reductase shows that the nitrate reductase protein is probably missing. A single mutation is responsible for this phenotype: the gene affected, nir R, is located close to tyr R i.e. at 29 min on the chromosomal map.Abbreviations BV
Benzyl-Viologen
- NTG
N-methyl-N-nitro-N-nitrosoguanidine
- NR
nitrate reductase
- NIR
nitrite reductase
- FR
fumarate reductase
- HYD
hydrogenase
- CYT c552
cytochrome c552 相似文献
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《Geobios》1986,19(5):641-646
The detailed morphological analysis of the dorsal interior of Chonetes arcuatus Hall, 1857, typespecies of the genus Eodevonaria (North American Lower Devonian), compared with those of the European species classically assigned to this genus, allows the erection of a new genus for the European eodevonariids. The phylogenetic relations of Loreleiella nov. gen. and its paleobiogeographic implication are discussed. 相似文献
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