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Enzymic properties of a mutant of Escherichia coli K 12 lacking nitrate reductase

✍ Scribed by Venables, W. A. ;Wimpenny, J. W. T. ;Cole, J. A.

Publisher
Springer-Verlag
Year
1968
Weight
278 KB
Volume
63
Category
Article
ISSN
0003-9276

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✦ Synopsis

A pleiotropic mutant of Escherichia cell KI~ lacking reduced NAD: nitrate oxidoreductase, soluble formate dehydrogenase and membrane-bound formate:ferricytochrome b 1 oxidoreduetase is described. Levels of several other enzymes and cytochromes have been measured and found to differ little from those normally present in the wild type with the exceptions of eytoehrome c52~, reduced NAD:cytochrome e oxidoreductase and reduced NAD:nitrite oxidoreductase which are vel T high. Although the affected gene maps in a different position from that reported for chl A by other workers it seems likely that the two loci are identical.

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