Trigger factor

UniProtKB accession:  Q9RT21

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UniProtKB description:  Involved in protein export. Acts as a chaperone by maintaining the newly synthesized protein in an open conformation. Functions as a peptidyl-prolyl cis-trans isomerase (By similarity). Probably changes conformation upon binding to the ribosome (maybe in particular due to interaction with L24), exposing a hydrophobic crevice that is probably important for its chaperone activity (PubMed:16091460, PubMed:16271892).