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research-article

Gene V protein-mediated translational regulation of the synthesis of gene II protein of the filamentous bacteriophage M13: a dispensable function of the filamentous-phage genome.

Laboratory of Molecular Biology, University of Nijmegen, The Netherlands.

ABSTRACT

Introduction of a deletion in the genome of wild-type M13 bacteriophage that eliminates translational repression of M13 gene II by its cognate gene V protein had no effect on phage viability. Furthermore, it was noted that gene V protein of phage IKe, a distant relative of M13, does not function as a translational repressor of its cognate gene II protein. The data strongly indicate that the gene V protein-mediated control of gene II expression in bacteriophage M13 is an evolutionary relic of the ancestral filamentous-phage genome and thus dispensable for proper filamentous-phage replication.

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