HHsearch alignment for GI: 254781024 and conserved domain: TIGR01176

>TIGR01176 fum_red_Fp fumarate reductase, flavoprotein subunit; InterPro: IPR005884 In bacteria two distinct, membrane-bound, enzyme complexes are responsible for the interconversion of fumarate and succinate (1.3.99.1 from EC): fumaratereductase (Frd) is used in anaerobic growth, and succinate dehydrogenase (Sdh) is used in aerobic growth. Both complexes consist of two main components: a membrane-extrinsic component composed of a FAD-binding flavoprotein and an iron-sulphur protein; and an hydrophobic component composed of a membrane anchor protein and/or a cytochrome B. In eukaryotes mitochondrial succinate dehydrogenase (ubiquinone) (1.3.5.1 from EC) is an enzyme composed of two subunits: a FAD flavoprotein and and iron-sulphur protein. The flavoprotein subunit is a protein of about 60 to 70 Kd to which FAD is covalently bound to a histidine residue which is located in the N-terminal section of the protein . The sequence around that histidine is well conserved in Frd and Sdh from various bacterial and eukaryotic species . The terms succinate dehydrogenase and fumarate reductase may be used interchangeably in certain systems. However, a number of species have distinct complexes, with the fumarate reductase active under anaerobic conditions. This model represents the fumarate reductase flavoprotein subunit from several such species in which a distinct succinate dehydrogenase is also found. ; GO: 0016491 oxidoreductase activity, 0006118 electron transport, 0009061 anaerobic respiration.
Probab=98.59  E-value=4.7e-07  Score=67.90  Aligned_cols=168  Identities=21%  Similarity=0.340  Sum_probs=103.1

Q ss_pred             CCCCEEEECCCHHHHHHHHHHHHCCCCCEEEEEECCCCCCCCCCCC-----CEE-CHHHHHHHCC------CHHHHCCCC
Q ss_conf             3647799989768999999999808997399997867789864027-----403-3367888678------726414885
Q gi|254781024|r   13 FEYDVVIIGAGPAGLAAAIRCKQINPHLSVVILEKSAEVGAHILSG-----AII-DPIGIDSLLP------RWREDKGHP   80 (554)
Q Consensus        13 meyDVvIVGaGPAG~saA~~La~~g~~l~VlvlEK~~~pG~~i~sG-----~vl-~p~aL~eL~P------d~~e~~g~p   80 (554)
T Consensus         2 ~~~~i~viGaGGAGLRaAIA~A~aNP~l~vAliSKVYPMRSHTVaAEGGsAAV~~D~DSld~H~~DTV~GGDWLC~QD~-   80 (585)
T TIGR01176         2 LQADIAVIGAGGAGLRAAIAAAEANPHLDVALISKVYPMRSHTVAAEGGSAAVTKDDDSLDEHFHDTVSGGDWLCEQDV-   80 (585)
T ss_pred             CCCCEEEECCCCHHHHHHHHHHHCCCCCCEEEEEECCCCCCCEECCCCCCEEECCCCCCHHHHCCCCCCCCCCCCCHHH-
T ss_conf             4323678837844689999998408985378985115776411113553112105641245414453456643220218-


Q ss_pred             CCCEEEEEEEEEECCCCCEECCCCCCCCCCCCCCCEEEEHH-----------------HHHHHHHHHH-HHCCCEECCCC
Q ss_conf             43224366999977997677365435654467882688888-----------------9899999999-87495330682
Q gi|254781024|r   81 FHTVVKRDLYWFLNAQRSIQIPHFCLPDFMDNKEHYIVSLG-----------------QVCRWLKNKA-EALGVEIYCGF  142 (554)
Q Consensus        81 l~~~v~~d~~~~l~~~~~~~~p~~~~p~~~~~~g~yiv~r~-----------------~fd~~L~~~A-e~~Gvei~~g~  142 (554)
T Consensus        81 Ve~FV~~------ap~E~~QlE~WGCPWSRk~dG~V~VR~FGGMK~~RTWFAADKTGFH~LHTLFQ~~l~y~~i~R~DE~  154 (585)
T TIGR01176        81 VEYFVAE------APKELVQLEHWGCPWSRKPDGRVNVRRFGGMKVERTWFAADKTGFHLLHTLFQTSLKYPQIKRYDEY  154 (585)
T ss_pred             HHHHHHH------CCHHHHHHHCCCCCCCCCCCCCEEEECCCCCCCCCEEECCCCCCHHHHHHHHHHHCCCCCCEEHHCE
T ss_conf             9998741------3345664312788877478985776226881221001011223426889999863056331000101


Q ss_pred             EEEEEEECCCCCEEEEEECCCCCCCCCCCCCCCCCEEEEEEEEEEEECCCCCHHHH
Q ss_conf             24347762776201454124324434665787563026774257860664432554
Q gi|254781024|r  143 TATEIYYGKKGEALGILTGEKGKNYDGTQGKHYIAPMLLLSKYMLVGEGACGSLTR  198 (554)
Q Consensus       143 ~v~~i~~~e~g~vvgv~t~~~G~~k~~~~~~~~~~g~~i~Ak~vI~AdG~~s~lak  198 (554)
T Consensus       155 F~~~lLV-DdG~v~GLvAi~~~~G----------~l~~I~A~aVvlaTGGaGRVy~  199 (585)
T TIGR01176       155 FVVDLLV-DDGRVRGLVAIELAEG----------RLVTIKADAVVLATGGAGRVYR  199 (585)
T ss_pred             EEEEEEE-ECCEEEEEEEEEECCC----------EEEEEEEEEEEEECCCCCCCEE
T ss_conf             3555575-1773555788863367----------0688874278993089873033