title: Implication of CcpN in the regulation of a novel untranslated RNA (SR1) in Bacillus subtilis.
abstract: Antisense-RNAs have been investigated in detail over the past 20 years as the principal regulators in accessory DNA elements such as plasmids, phages and transposons. However, only a few examples of chromosomally encoded bacterial antisense RNAs were known. Meanwhile, approximately 70 small non-coding RNAs from the Escherichia coli genome have been found, the functions of the majority of which remain to be elucidated. Only one systematic search has been performed for Gram-positive bacteria, so far. Here, we report the identification of a novel small (205 nt) non-translated RNA--SR1--encoded in the Bacillus subtilis genome. SR1 was predicted by a computational approach and verified by Northern blotting. Knockout or overexpression of SR1 did not affect growth. SR1 was derepressed under conditions of gluconeogenesis, but repressed under glycolytic conditions. Two regulatory levels could be identified, one involving CcpA, the second, more important, involving the recently identified regulator CcpN.
authors.affiliation: Institut für Molekularbiologie, Friedrich-Schiller-Universität Jena, Hans-Knöll-Str. 2, Jena D-07745, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Licht
authors.forename: Sven
authors.initials: S
authors.lastname: Preis
authors.forename: Sabine
authors.initials: S
authors.lastname: Brantl
mesh_terms: D001412:Bacillus subtilis / Q000235:genetics* / Q000502:physiology; D001426:Bacterial Proteins / Q000235:genetics / Q000502:physiology*; D001483:Base Sequence; D015152:Blotting, Northern; D018983:DNA Footprinting; D004269:DNA, Bacterial; D004268:DNA-Binding Proteins / Q000235:genetics / Q000502:physiology*; D024202:Electrophoretic Mobility Shift Assay; D018628:Gene Dosage; D015964:Gene Expression Regulation, Bacterial; D008969:Molecular Sequence Data; D011401:Promoter Regions, Genetic; D011485:Protein Binding; D012329:RNA, Bacterial / Q000235:genetics* / Q000302:isolation & purification; D022661:RNA, Untranslated / Q000235:genetics* / Q000302:isolation & purification; D012097:Repressor Proteins / Q000235:genetics / Q000502:physiology*; D017384:Sequence Deletion; D012689:Sequence Homology, Nucleic Acid; D024363:Transcription Initiation Site
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D004268:DNA-Binding Proteins; D012329:RNA, Bacterial; D022661:RNA, Untranslated; D012097:Repressor Proteins; C069286:catabolite control proteins, bacteria