Expression of the guanine operon of Escherichia coli as analyzed by bacteriophage lambda-induced mutations


Studies were made on two guaninerequiring strains of Escherichia coli isolated independently as a result of insertion of prophage λ into one of the structural genes of the guanine operon. These mutants do not exhibit any detectable guaB function but express the guaA function constitutively at a low level, presumably due to transcription from the pI promoter… (More)
DOI: 10.1007/BF00267572


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