The gef gene from Escherichia coli is regulated at the level of translation.
We describe post-transcriptional regulation of the chromosomal gene, gef, from Escherichia coli. The gef gene is a member of a gene family consisting of the chromosomal gef and relF genes from Escherichia coli and the hok, flmA, srnB, and pndA genes, which are situated on conjugative plasmids. All the genes encode small, toxic proteins of approximately 50 amino acids which are functionally and structurally homologous. Furthermore, the gene family shares post-transcriptional regulation of expression, albeit by different mechanisms. We demonstrate here that translation of gef is coupled to an upstream open reading frame which, in turn, is regulated by a transacting factor, probably an antisense RNA.
Genetic Engineering Group, Technical University of Denmark, Lyngby.
L K
LK
Poulsen
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A
Refn
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S
Molin
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P
Andersson
D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000096:biosynthesis* / Q000235:genetics; D001427:Bacterial Toxins; D001483:Base Sequence; D004926:Escherichia coli / Q000235:genetics* / Q000378:metabolism; D029968:Escherichia coli Proteins; D005798:Genes, Bacterial; D008565:Membrane Proteins; D008969:Molecular Sequence Data; D005810:Multigene Family / Q000235:genetics; D016366:Open Reading Frames / Q000235:genetics; D011401:Promoter Regions, Genetic / Q000235:genetics; D012323:RNA Processing, Post-Transcriptional; D016372:RNA, Antisense / Q000235:genetics; D011993:Recombinant Fusion Proteins / Q000235:genetics; D015533:Transcriptional Activation
D001426:Bacterial Proteins; D001427:Bacterial Toxins; D029968:Escherichia coli Proteins; D008565:Membrane Proteins; D016372:RNA, Antisense; D011993:Recombinant Fusion Proteins; C071524:HokC protein, E coli