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Regulation of Escherichia colil-asparaginase II and l-aspartase by the fnr gene-product

Pierre G. Jerlström, Ju Liu, Ifor R. Beacham
DOI: http://dx.doi.org/10.1111/j.1574-6968.1987.tb02182.x 127-130 First published online: 1 April 1987


l-asparaginase II and l-aspartase, which are known to be regulated by oxygen in Escherichia coli, are shown, by an examination of known fnr mutants, to be under the control of the fnr gene product. Mutants obtained from a procedure devised to select for asparaginase II-deficiency are fnr.

Key words
  • Escherichia coli
  • l-Asparaginase
  • l-Aspartase
  • (fnr gene)

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