>TIGR01414 autotrans_barl outer membrane autotransporter barrel domain; InterPro: IPR006315 The secretion of protein products occurs by a number of different pathways in bacteria and several secretion mechanisms have been described for Gram-negative bacteria , an increasing number employ a highly efficient but simple mechanism first described for the immunoglobulin A1 (IgA1) proteases , . The autotransporter secretion pathway is a distinct secretion mechanism, in which the protein moiety mediating export through the outer membrane is contained within the precursor of the secreted protein itself. Autotransporters have been implicated as important or putative virulence factors such as mediating adhesion to host cells or by mediating actin-promoted bacterial mobility . The key feature of an autotransporter is that it contains all the information for secretion in the precursor of the secreted protein itself . Autotransporters comprise three functional domains: 1) an N-terminal targeting domain (amino-terminal leader sequence) that functions as a signal peptide to mediate targeting to and translocation across the inner membrane 2) a C-terminal translocation domain (carboxy-terminal) that forms a beta-barrel pore to allow the secretion of 3) the passenger domain, the secreted mature protein . This entry shows the C-terminal autotransporter domain, it is about 400 amino acids in length and includes the aromatic amino acid-rich OMP signal, typically ending with a Phe or Trp residue, at the extreme C-terminus.; GO: 0019867 outer membrane.

Probab=95.11 E-value=0.2 Score=26.43 Aligned_cols=167 Identities=16% Similarity=0.128 Sum_probs=101.6 Q ss_pred EEEEEEEEEEEEEEEEECCCCCCC----CCCCCCCCCEEEEEEEEEEEECCEEEEEEEEEEEECCCCCC--------CCC Q ss_conf 005744464410332221455566----66676675504799886554457799999886740477764--------323 Q gi|254781078|r 55 SGNYVGLHISRLYETHPLADTINR----KTYNSLLPNGLGIELGHNIQLEDFVFGINCHTTAAKDDSTF--------YRL 122 (242) Q Consensus 55 tG~YiG~~~G~~~~~~~~~d~~~~----~~~n~~~~~g~G~~~GYN~Q~~~~V~GvE~d~~~~~~~~~~--------~~~ 122 (242) T Consensus 265 ~g~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~g~~~~~~~g~~~~~~-~~~~P~~~~~~~~~~~~~~~~~~g~~~~~ 343 (454) T TIGR01414 265 TGAYVDGWLKYSWFNNDLSSLGSGGKSVSGKYNSNGLGASLEAGYRYNLG-WYLEPQAQLSYLGVSGDDYKESNGTRVLG 343 (454) T ss_pred CCEEEEHEEEEEHHCCCCCCCCCCCCCCCCCCCCCCEEEEEECCCEEEEE-EEEECCEEEEEEEECCCCEECCCCEEEEE T ss_conf 31121000000000020100135542013444333114543114011004-67500036888740564201046536760 Q ss_pred CC--CCEEEEEEEEEEE---EEE-----CCEEEEEEEEEEEEEEECCCCCCCCCCCCCCCCCCCCCCCEEEEEEEEEEEE Q ss_conf 10--1003679899986---331-----4403444401145753011000236666555543455653037987316673 Q gi|254781078|r 123 KE--KYFIYGDVVLKAG---YSV-----DSLLIYGMGGFGGAYVIDSSLEKVESDNSKNAKGRFDGHGSSVVLGIGLDYM 192 (242) Q Consensus 123 ~~--k~~~~Gsvr~r~G---ya~-----~~~l~Y~~gG~A~~~~~~~~~~~~~~~~~~~~~~~~d~t~~G~tvGaGVEYa 192 (242) T Consensus 344 ~~~~~~~~~~~~g~~~~~~~~~~~~~~~~~~~p~~~~~~~~~~~~~-~~~~~~~~--~~~~~~~~~~~~~~~~~~g~~~~ 420 (454) T TIGR01414 344 GGDSGDSLQGRLGLRLGYKASQFDLGTGRALKPYLKANWLHEFGGL-GGNGVLVN--GGVTLRNDGSGTRGELGLGVNAS 420 (454) T ss_pred CCCCCCCEEEECCEEECCCHHHHHCCCCCEEEEEEEEEEEEECCCC-CCCEEEEC--CCCCCCCCCCCCEEEEECCEEEE T ss_conf 5665320000001000010000000367322146777653101477-75315751--65200244444224431240244 Q ss_pred CC-CCEEEEEEEEEEECCCCEEECCCCCCCCCCCCCCCCEEEEEEEEEEEC Q ss_conf 27-876888898887448730003666666442201234138999886209 Q gi|254781078|r 193 VN-YDISLSASYRYIPHHIHSVNNSNAKSDVERVDRKGNAHIASLGINMHF 242 (242) Q Consensus 193 it-~nwslraEY~Y~d~g~~~~~~~~~~~~~~~~~~~~~~h~v~~GinY~F 242 (242) T Consensus 421 ~~~~~~~~~~~~~~~~g~-----------------~~~~~~~~~~g~~~~~ 454 (454) T TIGR01414 421 LKSPNLSLYLDVDYQLGG-----------------KGETPWSGNLGVRYSF 454 (454) T ss_pred ECCCCEEEEEEEECCCCC-----------------CCCCCEEEEEEEEEEC T ss_conf 336421576531001366-----------------5333203555357739

HHsearch alignment for GI: 254781078 and conserved domain: TIGR01414