Hsp17 thermometer

In molecular biology, the Hsp17 thermometer is an RNA element (RNA thermometer) found in the 5' UTR of Hsp17 mRNA.[1] Hsp17 is a cyanobacterial heat shock protein belonging to the Hsp20 family.[2]

Hsp17 thermometer
Predicted secondary structure and sequence conservation of PinT small RNA
Identifiers
RfamRF02358
Other data
Domain(s)Bacteria
GO0009266
SO0005836
PDB structuresPDBe

At physiological temperature (28 degrees Celsius) the Hsp17 thermometer forms a hairpin structure, preventing translation of Hsp17. Under heat shock conditions the hairpin structure melts and translation takes place.[1]

See also

References

  1. Kortmann J, Sczodrok S, Rinnenthal J, Schwalbe H, Narberhaus F (2011). "Translation on demand by a simple RNA-based thermosensor". Nucleic Acids Res. 39 (7): 2855–2868. doi:10.1093/nar/gkq1252. PMC 3074152. PMID 21131278.
  2. Török Z, Goloubinoff P, Horváth I, Tsvetkova NM, Glatz A, Balogh G, et al. (2001). "Synechocystis HSP17 is an amphitropic protein that stabilizes heat-stressed membranes and binds denatured proteins for subsequent chaperone-mediated refolding". Proc Natl Acad Sci U S A. 98 (6): 3098–3103. doi:10.1073/pnas.051619498. PMC 30613. PMID 11248038.
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