>pfam05697 Trigger_N Bacterial trigger factor protein (TF). In the E. coli cytosol, a fraction of the newly synthesized proteins requires the activity of molecular chaperones for folding to the native state. The major chaperones implicated in this folding process are the ribosome-associated Trigger Factor (TF), and the DnaK and GroEL chaperones with their respective co-chaperones. Trigger Factor is an ATP-independent chaperone and displays chaperone and peptidyl-prolyl-cis-trans-isomerase (PPIase) activities in vitro. It is composed of at least three domains, an N-terminal domain which mediates association with the large ribosomal subunit, a central substrate binding and PPIase domain with homology to FKBP proteins, and a C-terminal domain of unknown function. The positioning of TF at the peptide exit channel, together with its ability to interact with nascent chains as short as 57 residues renders TF a prime candidate for being the first chaperone that binds to the nascent polypeptide

Probab=99.96 E-value=2.3e-28 Score=246.11 Aligned_cols=144 Identities=28% Similarity=0.576 Sum_probs=138.0 Q ss_pred CCEEEEECCCCEEEEEEEECHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH Q ss_conf 91189972797699999854899999999999998750738985897048899998610899999999999999999998 Q gi|254780897|r 1 MQVIEKFSEGLKRELDVIIPSNRLTDSFNERIEDIRSKANIKGFRPGKVPLSHIKSLYGKSILSETIDEIIKEIVPEILS 80 (473) Q Consensus 1 M~v~~~~~~~~~~~l~v~v~~~~~~~~~~~~~~~~~~~~~ipGFRkGKvP~~ii~~~~g~~i~~e~~~~li~~~~~~~i~ 80 (473) T Consensus 1 M~~~~~~~~~~~~~~~v~i~~~~~~~~~~~~~~~~~k~~~ipGFRkGKvP~~ii~k~~g~~i~~e~~~~li~~~~~~~~~ 80 (144) T pfam05697 1 MKVTVEKLEGLEVKLTVEVPAEEVEEAVDKALKELAKKVKIPGFRKGKVPRSVVKKRYGKEIYQEALEDLLQEAYEEALK 80 (144) T ss_pred CCEEEEECCCCEEEEEEEECHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH T ss_conf 95389977897899999998999999999999999810889997899889999999987999999999999999999998 Q ss_pred HCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCEEEEEEEECCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHH Q ss_conf 7299542287412222223332110137882057887622787762111356431001211115789999997 Q gi|254780897|r 81 KRDERAAMRPSITINEGESDITSGLIEGTVDLKLRLSYDILPQIEISSFDDLQVTQDICEVDEKEIDRQMAEI 153 (473) Q Consensus 81 ~~~~~~~~~P~i~~~~~~~~~~~~~~~~~~~~~~~~~~ev~Pei~l~~y~~i~i~~~~~~vtd~~Id~~i~~l 153 (473) T Consensus 81 e~~~~~~~~P~i~~~~---------~~~~~~~~~~~~~ev~Pei~l~~~~~i~v~~~~~~v~d~dId~~i~~l 144 (144) T pfam05697 81 EEKLRPIGQPEIEEVE---------LEEGKDLEFTAEFEVYPEVELGDYKGLEVEKPEVEVTDEDVDEELERL 144 (144) T ss_pred HCCCCCCCCCCCCCCC---------CCCCCCEEEEEEEEECCCEECCCCCCCEEEECCCCCCHHHHHHHHHCC T ss_conf 4556736687311034---------567985799999996485003766764577567777999999999709

HHsearch alignment for GI: 254780897 and conserved domain: pfam05697