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Characterization of aParacoccus denitrificansmutant pleiotropically impaired in nitrogen metabolism

โœ Scribed by M. R. Ahmadian; H. A. Ghozlan; S. Sabry; D. Kleiner


Publisher
Springer
Year
1993
Tongue
English
Weight
229 KB
Volume
160
Category
Article
ISSN
0302-8933

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The widely used E. coli K12 strain AB1157 is impaired in guanine (xnathine) metabolism. Mutants blocked in purine biosynthesis before the stage of inosine monophosphate synthesis do not grow on external guanine or xanthine. The genetic nature of the Gua/Xan lesion is a deletion in the chromosome tha