{"refrec":{"BRefID":280655,"RR":"<b>Godin-Roulling, A.; Schmidpeter, P.A.M.; Schmid, F.X.; Feller, G.</b> (2015). Functional adaptations of the bacterial chaperone trigger factor to extreme environmental temperatures. <i>Environ. Microbiol. 17(7)</i>: 2407-2420. <a href=\"http://dx.doi.org/10.1111/1462-2920.12707\" target=\"_blank\">dx.doi.org/10.1111/1462-2920.12707</a>","BEntID":272674,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Environ. Microbiol. 17(7)</i>: 2407-2420. <a href=\"https://dx.doi.org/10.1111/1462-2920.12707\" target=\"_blank\">https://dx.doi.org/10.1111/1462-2920.12707</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Godin-Roulling, A.; Schmidpeter, P.A.M.; Schmid, F.X.; Feller, G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Godin-Roulling, A. <i>et al.</i>","Englishabstract":"Trigger factor (TF) is the first molecular chaperone interacting cotranslationally with virtually all nascent polypeptides synthesized by the ribosome in bacteria. Thermal adaptation of chaperone function was investigated in TFs from the Antarctic psychrophile <i>P</i><i>seudoalteromonas haloplanktis</i>, the mesophile <i>E</i><i>scherichia coli</i> and the hyperthermophile <i>T</i><i>hermotoga maritima</i>. This series covers nearly all temperatures encountered by bacteria. Although structurally homologous, these TFs display strikingly distinct properties that are related to the bacterial environmental temperature. The hyperthermophilic TF strongly binds model proteins during their folding and protects them from heat-induced misfolding and aggregation. It decreases the folding rate and counteracts the fast folding rate imposed by high temperature. It also functions as a carrier of partially folded proteins for delivery to downstream chaperones ensuring final maturation. By contrast, the psychrophilic TF displays weak chaperone activities, showing that these functions are less important in cold conditions because protein folding, misfolding and aggregation are slowed down at low temperature. It efficiently catalyses prolyl isomerization at low temperature as a result of its increased cellular concentration rather than from an improved activity. Some chaperone properties of the mesophilic TF possibly reflect its function as a cold shock protein in <i>E</i><i>. coli</i>.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Functional adaptations of the bacterial chaperone trigger factor to extreme environmental temperatures","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2015,"MonPub":null,"DateUpdate":"2016-10-20","DateCreate":"2016-10-09","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000358114300019","VABBcode":null,"OpenAcc":0,"DOI":"10.1111/1462-2920.12707"},"refs":null,"anarec":{"AnaID":280655,"PubliDate":2015,"Pagination":"2407-2420","XtraPublOfAnaID":null,"ISBN":null,"Volume":"17","Issue":"7","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":59926,"SerRR":"Environmental Microbiology. 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