PMID: 2106513Mar 1, 1990Paper

Acquired thermotolerance and heat shock in the extremely thermophilic archaebacterium Sulfolobus sp. strain B12

Journal of Bacteriology
J D TrentT Pinkau

Abstract

The extreme thermophile Sulfolobus sp. strain B12 exhibits an acquired thermotolerance response. Thus, survival of cells from a 70 degrees C culture at the lethal temperature of 92 degrees C was enhanced by as much as 6 orders of magnitude over a 2-h period if the culture was preheated to 88 degrees C for 60 min or longer before being exposed to the lethal temperature. In eubacteria and eucaryotes, acquired thermotolerance correlates with the induced synthesis of a dozen or so proteins known as heat shock proteins. In this Sulfolobus species, it correlates with the preferential synthesis of primarily one major protein (55 kilodaltons) and, to a much lesser extent, two minor proteins (28 and 35 kilodaltons). Since the synthesis of all other proteins was radically reduced and these proteins were apparently not degraded or exported, their relative abundance within the cell increased during the time the cells were becoming thermotolerant. They could not yet be related to known heat shock proteins. In immunoassays, they were not cross-reactive with antibodies against heat shock proteins from Escherichia coli (DnaK and GroE), which are highly conserved between eubacteria and eucaryotes. However, it appears that if acquired thermotole...Continue Reading

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Citations

May 13, 1997·Proceedings of the National Academy of Sciences of the United States of America·J D TrentN J Zaluzec
Dec 16, 2003·Proceedings of the National Academy of Sciences of the United States of America·Jonathan D TrentChristopher E Henze
Jan 19, 2008·Environmental Microbiology·Antoine PagéAnna-Louise Reysenbach
Jan 27, 2011·Biochemical Society Transactions·Peter Lund
Jan 16, 2009·Biochemical Society Transactions·Charlotte R CooperRobert M Kelly
Jul 1, 1995·Bio/technology·M W AdamsR M Kelly
May 11, 2005·Proceedings of the National Academy of Sciences of the United States of America·Samuel KarlinLuciano Brocchieri
Sep 14, 2006·Molecular Microbiology·Georgia KapataiPeter A Lund
Jan 7, 2011·Extremophiles : Life Under Extreme Conditions·I V Ambily Nath, P A Loka Bharathi
Jan 18, 2017·Archives of Microbiology·Preeti Ranawat, Seema Rawat
Feb 20, 2020·Quarterly Reviews of Biophysics·Arthur L Horwich, Wayne A Fenton
Jun 21, 2020·Extremophiles : Life Under Extreme Conditions·Rani BaesEveline Peeters
Jan 22, 2021·FEMS Microbiology Reviews·April M LewisRobert M Kelly
Mar 9, 2021·Acta Crystallographica. Section F, Structural Biology Communications·Yi Cheng ZengAlastair G Stewart
Nov 5, 1999·Journal of Molecular Biology·I GutscheW Baumeister
Jul 31, 1998·Archives of Biochemistry and Biophysics·T YaoiJ D Trent
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