HMM Summary Page: TIGR02338

Functionprefoldin, beta subunit
Trusted Cutoff73.00
Domain Trusted Cutoff73.00
Noise Cutoff49.65
Domain Noise Cutoff49.65
Isology Typeequivalog
HMM Length110
AuthorHaft DH
Entry DateOct 5 2004 10:59AM
Last ModifiedFeb 14 2011 3:27PM
CommentChaperonins are cytosolic, ATP-dependent molecular chaperones, with a conserved toroidal architecture, that assist in the folding of nascent and/or denatured polypeptide chains. The group I chaperonin system consists of GroEL and GroES, and is found (usually) in bacteria and organelles of bacterial origin. The group II chaperonin system, called the thermosome in Archaea and TRiC or CCT in the Eukaryota, is structurally similar but only distantly related. Prefoldin, also called GimC, is a complex in Archaea and Eukaryota, that works with group II chaperonins. Members of this protein family are the archaeal clade of the beta class of prefoldin subunit. Closely related, but outside the scope of this family are the eukaryotic beta-class prefoldin subunits, Gim-1,3,4 and 6. The alpha class prefoldin subunits are more distantly related.
ReferencesRN [1] RM 10581246 RT MtGimC, a novel archaeal chaperone related to the eukaryotic chaperonin cofactor GimC/prefoldin. RA Leroux MR, Fandrich M, Klunker D, Siegers K, Lupas AN, Brown JR, Schiebel E, Dobson CM, Hartl FU. RL EMBO J. 1999 Dec 1;18(23):6730-43. DR HAMAP; MF_00307; 36 of 36
Genome PropertyGenProp0246: chaperone system: thermosome/prefoldin (HMM)