Mutations that alter the allosteric nature of cAMP receptor protein of Escherichia coli.


Mutations which permit cAMP binding protein (CRP) to act in the absence of cAMP have been isolated by in vitro mutagenesis of a plasmid containing the cloned crp gene. Adenylate cyclase deficient cells harbouring the mutant (crp*) plasmids exhibited a variety of fermentation profiles on MacConkey indicator plates containing various sugars. beta… (More)


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