Bacteriophage S13: A Seventh Gene

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Science  12 May 1967:
Vol. 156, Issue 3776, pp. 824-825
DOI: 10.1126/science.156.3776.824


Genetic complementation tests of ochre-type suppressible mutants of bacteriophage S13 have revealed a seventh gene. A mutation of this gene has no significant effect on synthesis of the phage replicative form DNA, but like five other phage genes it prevents the appearance of single-stranded DNA. With the new gene, it seems likely that approximately 70 to 100 percent of the phage genes are accounted for.