HHsearch alignment for GI: 254780925 and conserved domain: TIGR00916

>TIGR00916 2A0604s01 protein-export membrane protein, SecD/SecF family; InterPro: IPR003335 Secretion across the inner membrane in some Gram-negative bacteria occurs via the preprotein translocase pathway. Proteins are produced in the cytoplasm as precursors, and require a chaperone subunit to direct them to the translocase component. . From there, the mature proteins are either targeted to the outer membrane, or remain as periplasmic proteins. The translocase protein subunits are encoded on the bacterial chromosome. The translocase itself comprises 7 proteins, including a chaperone protein (SecB), an ATPase (SecA), an integral membrane complex (SecCY, SecE and SecG), and two additional membrane proteins that promote the release of the mature peptide into the periplasm (SecD and SecF) . The chaperone protein SecB is a highly acidic homotetrameric protein that exists as a "dimer of dimers" in the bacterial cytoplasm. SecB maintains preproteins in an unfolded state after translation, and targets these to the peripheral membrane protein ATPase SecA for secretion . Together with SecY and SecG, SecE forms a multimeric channel through which preproteins are translocated, using both proton motive forces and ATP-driven secretion. The latter is mediated by SecA. The structure of the Escherichia coli SecYEG assembly revealed a sandwich of two membranes interacting through the extensive cytoplasmic domains . Each membrane is composed of dimers of SecYEG. The monomeric complex contains 15 transmembrane helices. This family consists of various prokaryotic SecD and SecF protein export membrane proteins. The SecD and SecF equivalents of the Gram-positive bacterium Bacillus subtilis are jointly present in one polypeptide, denoted SecDF, that is required to maintain a high capacity for protein secretion. Unlike the SecD subunit of the pre-protein translocase of E. coli, SecDF of B. subtilis was not required for the release of a mature secretory protein from the membrane, indicating that SecDF is involved in earlier translocation steps . Comparison with SecD and SecF proteins from other organisms revealed the presence of 10 conserved regions in SecDF, some of which appear to be important for SecDF function. Interestingly, the SecDF protein of B. subtilis has 12 putative transmembrane domains. Thus, SecDF does not only show sequence similarity but also structural similarity to secondary solute transporters .; GO: 0008565 protein transporter activity, 0015628 protein secretion by the type II secretion system, 0015627 type II protein secretion system complex.
Probab=100.00  E-value=1.3e-38  Score=246.38  Aligned_cols=227  Identities=46%  Similarity=0.819  Sum_probs=205.2

Q ss_pred             CCCHHHCCCHHHCC--CC--CCCCCCC-CCCCCCCEE---ECCCCCCCCCCHHHHHHHHHHHHHHHHHHCCCCCCCCCCC
Q ss_conf             21011001000001--23--2211000-000133200---0123334432101357887654443211000012233333
Q gi|254780925|r  278 GARRFFEVTRDNIG--KP--LAVVLDG-RVLTAPVIN---QAIPSGKAQISGNFTIETAGILAAMLRAGSLPIKLNIVEE  349 (833)
Q Consensus       278 ~~~~~~~~~~~~~~--~~--~~~~~~~-~~~~~~~~~---~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  349 (833)
T Consensus         5 G~~~f~~~T~~~~g~q~~~~la~vl~~~~~~s~~~vg~~~~~i~GG~~~I~G~F~~~~A~~LA~~Lr~GaLp~~~~~~e~   84 (247)
T TIGR00916         5 GAKIFADFTAKNIGTQKRESLAIVLDNAKVISAPVVGEAIQPITGGSGQITGNFTIEEAQDLALLLRSGALPAPIKILEE   84 (247)
T ss_pred             HHHHHHHHHHHHCCCCCCCCCCCCCCCCEEEEEEEECCEEEEECCCEEEEECCCCHHHHHHHHHHHHHHHCCCCEEEEEE
T ss_conf             88899997654415887220210024505787411100022100771589427878999999999987412567178610


Q ss_pred             CEEEEECCCHHHHHHHHHHHHHHHHHHHHHHHHCCCCHHHHHHHHHHH--HHHHHHHHHHHH-HHHHHHHHHHHHHHHHH
Q ss_conf             201100110245788888899999999999973032035666677777--788999999998-76655789999998653
Q gi|254780925|r  350 RNVGADLGSDSIYKGTCAIVAGLVLIVLFMIVLYGKWGLVADFSIFLN--VILTLALLSLLG-ATLTLPSIAGIVLGIGL  426 (833)
Q Consensus       350 ~~~~~~~~~~~~~~~~~~~~~~lvvvvv~l~l~~~r~~li~~iaIpis--ii~tl~~l~~~G-~tLn~~sl~gl~~~~g~  426 (833)
T Consensus        85 r~iGp~lG~~~~~~g~~A~~~~l~~v~~Y~~~ry~~~~~~a~~~~l~~Dl~~~~~a~~s~~~G~~l~L~~iAgll~~iG~  164 (247)
T TIGR00916        85 RTIGPSLGAELIRAGILALLIALVLVLLYMLLRYEWRGAIAAIALLVHDLVILILAVLSLFGGATLTLPGIAGLLLIIGY  164 (247)
T ss_pred             EECCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCEEECHHHHHHHHHHHHH
T ss_conf             34475556899999999999999999999999999999999999999999999999999875900278999999999978


Q ss_pred             HHHHHHHHHHHHHHHHH----CCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCC-HHHHHHHHHHHHHHH
Q ss_conf             35789999999876310----2555799999999999999997655689998887614554431-147887788899877
Q gi|254780925|r  427 AVDSNILVNERIREENR----KNQSVFCSLDMGFSRAYSTIFDSNITALIATVVLFFFGGGAVR-GFAITMGLSILISMF  501 (833)
Q Consensus       427 ~vd~~i~~~e~~~~~~~----~~~~~~~a~~~~~~~~~~~i~~~~~t~~~~~~~l~~~~~~~~~-~f~~~~~~~~~~~~~  501 (833)
T Consensus       165 svdd~VviFdRiREelr~~k~~g~~~~~a~~~g~~~tl~ri~~t~~TTlla~~~L~~fG~g~ik~gFal~l~iG~~~g~y  244 (247)
T TIGR00916       165 SVDDTVVIFDRIREELRDIKYKGRTLREAINLGFNQTLSRIIDTNVTTLLAALALFVFGGGAIKKGFALTLLIGVIAGTY  244 (247)
T ss_pred             HHHCEEEEECCCHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHHH
T ss_conf             76455478735088888641148979999998899999998998699999999999971013431147878788788644


Q ss_pred             HHH
Q ss_conf             775
Q gi|254780925|r  502 TAI  504 (833)
Q Consensus       502 ~~~  504 (833)
T Consensus       245 Ssi  247 (247)
T TIGR00916       245 SSI  247 (247)
T ss_pred             CCC
T ss_conf             049