منابع مشابه
Long noncoding RNA as a regulator for transcription.
Investigation of noncoding RNAs is in rapid progress, especially regarding translational repression by small (short) noncoding RNAs like microRNAs with 20-25 nucleotide-lengths, while long noncoding RNAs with nucleotide length of more than two hundred are also emerging. Indeed, our analysis has revealed that a long noncoding RNA transcribed from cyclin D1 promoter of 200 and 300 nucleotides exe...
متن کامل6S RNA regulation of pspF transcription leads to altered cell survival at high pH.
6S RNA is a highly abundant small RNA that regulates transcription through direct interaction with RNA polymerase. Here we show that 6S RNA directly inhibits transcription of pspF, which subsequently leads to inhibition of pspABCDE and pspG expression. Cells without 6S RNA are able to survive at elevated pH better than wild-type cells due to loss of 6S RNA-regulation of pspF. This 6S RNA-depend...
متن کاملLegionella pneumophila 6S RNA optimizes intracellular multiplication.
Legionella pneumophila is a Gram-negative opportunistic human pathogen that infects and multiplies in a broad range of phagocytic protozoan and mammalian phagocytes. Based on the observation that small regulatory RNAs (sRNAs) play an important role in controlling virulence-related genes in several pathogenic bacteria, we attempted to identify sRNAs expressed by L. pneumophila. We used computati...
متن کامل6S RNA Regulates E. coli RNA Polymerase Activity
The E. coli 6S RNA was discovered more than three decades ago, yet its function has remained elusive. Here, we demonstrate that 6S RNA associates with RNA polymerase in a highly specific and efficient manner. UV crosslinking experiments revealed that 6S RNA directly contacts the sigma70 and beta/beta' subunits of RNA polymerase. 6S RNA accumulates as cells reach the stationary phase of growth a...
متن کاملStudies on the function of the riboregulator 6S RNA from E. coli: RNA polymerase binding, inhibition of in vitro transcription and synthesis of RNA-directed de novo transcripts
Escherichia coli 6S RNA represents a non-coding RNA (ncRNA), which, based on the conserved secondary structure and previous functional studies, had been suggested to interfere with transcription. Selective inhibition of sigma-70 holoenzymes, preferentially at extended -10 promoters, but not stationary-phase-specific transcription was described, suggesting a direct role of 6S RNA in the transiti...
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ژورنال
عنوان ژورنال: Molecular Microbiology
سال: 2007
ISSN: 0950-382X,1365-2958
DOI: 10.1111/j.1365-2958.2007.05894.x