Nonessential region of bacteriophage P4: DNA sequence, transcription, gene products, and functions.
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Sequenced the P4 gop-beta-cII region and demonstrated that gop and beta are cotranscribed and that Beta prevents Gop from killing Escherichia coli.
"The newly sequenced region encodes three nonessential genes, which are called gop, beta, and cII (in order, from left to right). The gop gene product kills Escherichia coli when the beta protein is absent; the gop and beta genes are transcribed rightward from the same promoter."