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  • Title: Genetic studies on ribose 5-phosphate isomerase mutants of Escherichia coli K-12.
    Author: Skinner AJ, Cooper RA.
    Journal: J Bacteriol; 1974 Jun; 118(3):1183-5. PubMed ID: 4598000.
    Abstract:
    A gene for the constitutive ribosephosphate isomerase (rpiA) is highly cotransducible with serA at 56.2 min on the genetic linkage map of Escherichia coli K-12. Suppression of ribosephosphate isomerase A-negative mutants can occur by a regulator gene mutation permitting constitutive synthesis of the normally inducible ribosephosphate isomerase B.
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