From Wikipedia, the free encyclopedia
PrfA thermoregulator UTR
Identifiers
SymbolPrfA
Rfam RF00038
Other data
RNA type Cis-reg; thermoregulator
Domain(s) Bacteria
SO SO:0000233
PDB structures PDBe

The PrfA thermoregulator UTR is an RNA thermometer found in the 5' UTR of the prfA gene. [1] In Listeria monocytogenes, virulence genes are maximally expressed at 37 °C ( human body temperature) but are almost silent at 30 °C. [2] The genes are controlled by PrfA, a transcriptional activator whose expression is thermoregulated. [3] It has been shown that the untranslated mRNA (UTR) preceding prfA, forms a secondary structure, which masks the ribosome binding region. [1] It is thought that at 37 °C, the hairpin structure 'melts' and the SD sequence is unmasked. [1]

References

  1. ^ a b c Johansson J, Mandin P, Renzoni A, Chiaruttini C, Springer M, Cossart P (2002). "An RNA thermosensor controls expression of virulence genes in Listeria monocytogenes". Cell. 110 (5): 551–561. doi: 10.1016/S0092-8674(02)00905-4. PMID  12230973.
  2. ^ Freitag, NE; Port, GC; Miner, MD (September 2009). "Listeria monocytogenes - from saprophyte to intracellular pathogen". Nature Reviews. Microbiology. 7 (9): 623–628. doi: 10.1038/nrmicro2171. PMC  2813567. PMID  19648949.
  3. ^ Digel, I; Kayser, P; Artmann, GM (2008). "Molecular processes in biological thermosensation". Journal of Biophysics. 2008: 602870. doi: 10.1155/2008/602870. PMC  2814129. PMID  20130806.

External links

From Wikipedia, the free encyclopedia
PrfA thermoregulator UTR
Identifiers
SymbolPrfA
Rfam RF00038
Other data
RNA type Cis-reg; thermoregulator
Domain(s) Bacteria
SO SO:0000233
PDB structures PDBe

The PrfA thermoregulator UTR is an RNA thermometer found in the 5' UTR of the prfA gene. [1] In Listeria monocytogenes, virulence genes are maximally expressed at 37 °C ( human body temperature) but are almost silent at 30 °C. [2] The genes are controlled by PrfA, a transcriptional activator whose expression is thermoregulated. [3] It has been shown that the untranslated mRNA (UTR) preceding prfA, forms a secondary structure, which masks the ribosome binding region. [1] It is thought that at 37 °C, the hairpin structure 'melts' and the SD sequence is unmasked. [1]

References

  1. ^ a b c Johansson J, Mandin P, Renzoni A, Chiaruttini C, Springer M, Cossart P (2002). "An RNA thermosensor controls expression of virulence genes in Listeria monocytogenes". Cell. 110 (5): 551–561. doi: 10.1016/S0092-8674(02)00905-4. PMID  12230973.
  2. ^ Freitag, NE; Port, GC; Miner, MD (September 2009). "Listeria monocytogenes - from saprophyte to intracellular pathogen". Nature Reviews. Microbiology. 7 (9): 623–628. doi: 10.1038/nrmicro2171. PMC  2813567. PMID  19648949.
  3. ^ Digel, I; Kayser, P; Artmann, GM (2008). "Molecular processes in biological thermosensation". Journal of Biophysics. 2008: 602870. doi: 10.1155/2008/602870. PMC  2814129. PMID  20130806.

External links


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