Expression of the guanine operon of Esch
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Shimada, Kazunori ;Fukumaki, Yasuyuki ;Takagi, Yasuyuki
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Article
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1976
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Springer
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English
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Studies were made on two guanine-requiring strains of Escherichia coli isolated independently as a result of insertion of prophage gamma 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