>TIGR02813 omega_3_PfaA polyketide-type polyunsaturated fatty acid synthase PfaA; InterPro: IPR004432 Members of this entry represent PfaA, which is involved in omega-3 polyunsaturated fatty acid biosynthesis, for example PfaA from the eicosapentaenoic acid biosynthesis operon in Photobacterium profundum strain SS9. PfaA is found together with PfaB, PfaC, and PfaD, and the functions of the individual polypeptides have not yet been described. More distant homologues of PfaA, also included in this entry, appear to be involved in polyketide-like biosynthetic mechanisms of polyunsaturated fatty acid biosynthesis; an alternative to the more familiar iterated mechanism of chain extension and desaturation, and like PfaA the more distant homologues are likewise found near genes for homologues of PfaB, PfaC, and/or PfaD..

Probab=98.63 E-value=1.4e-06 Score=59.81 Aligned_cols=156 Identities=11% Similarity=0.097 Sum_probs=118.8 Q ss_pred CCCCEEEEECCCCCCCHHHHHHHHHHHCC-CEEEEEECCHHHH------------------H-HHHHH------------ Q ss_conf 68878999388988525899999999899-8899994897899------------------9-99999------------ Q gi|254780462|r 5 LKGKRGLIMGVANDHSIAWGIAKVLHSAG-AQLAFSYQGESIG------------------K-RLKPL------------ 52 (267) Q Consensus 5 L~gK~~lItGas~~~GIG~aia~~l~~~G-a~V~i~~~~~~~~------------------~-~~~~l------------ 52 (267) T Consensus 2157 ~~~~~~LV~GG--AKGVT~~C~l~lAK~~~a~FiL~GRS~~~~~~~~P~WA~G~s~~~~LK~AA~~~l~~~GeKPTP~~V 2234 (2773) T TIGR02813 2157 DKDDKVLVTGG--AKGVTFECALELAKQCQAHFILAGRSSHIADDELPSWAQGKSDENELKKAAIQHLQASGEKPTPKKV 2234 (2773) T ss_pred CCCCCEEEECC--CCCHHHHHHHHHHHHHCCCEEEECCHHHHHHCCCCCCCCCCCHHHHHHHHHHHHHHHCCCCCCCHHH T ss_conf 36871788378--7622599999998753211455033045552068741046503567899999999863899885225 Q ss_pred --------------------HHCCCCEEEEECCCCCHHHHHHHHHHHHHHH--CC--CCEEEECCCCCCCCCCCCCCCCC Q ss_conf --------------------8515964999877999999999999999983--79--88999368331776555761257 Q gi|254780462|r 53 --------------------ALTVDSDFMIPCNVEDPSSMDLLFERIKERW--ET--LDFVVHSIAFSDKNELRGPYYNT 108 (267) Q Consensus 53 --------------------~~~~~~~~~~~~Dv~~~~~v~~~~~~~~~~~--g~--iD~lVnnAg~~~~~~~~~~~~~~ 108 (267) T Consensus 2235 ~~lv~PV~s~~EI~~aLaA~~a~Ga~A~Y~s~DV~~s~sva~~~~~~~~~~g~gsl~iTGiIHGAGVLAD----K~I~~K 2310 (2773) T TIGR02813 2235 DALVKPVLSSLEIAQALAAFKAVGASAEYLSVDVTDSVSVAATVAPLNKLLGQGSLDITGIIHGAGVLAD----KHIQDK 2310 (2773) T ss_pred HHHHHHHHHHHHHHHHHHHHHHCCCCEEEEEEECCCHHHHHHHHHHHHHHHCCCCCCCCEEEECCHHHHH----HHHHHH T ss_conf 8664123545789999999985188714788604884789999999998616876210036644113423----445340 Q ss_pred CHHHHHHHHHCCCCHHHHHHHHCCCCCCCCCEEEEEEEEEECCCCCCCCCCHHHHHHHHH Q ss_conf 999997765016611232221002224468416898875201456432100000156776 Q gi|254780462|r 109 SRDNFIQTMLVSCFSFTEIVRRAAQLMPHGGAMITLTYGGSMRVVPNYNAMAPAKSALES 168 (267) Q Consensus 109 ~~e~~~~~~~vn~~~~~~~~~~~~~~~~~~G~II~isS~~~~~~~~~~~~Y~asKaal~~ 168 (267) T Consensus 2311 TL~E~~~VYgTKv~GL~~lL~a~~~~~~--K~~~lFSSAAGFYGN~GQSDYa~sNdILNK 2368 (2773) T TIGR02813 2311 TLEEFNAVYGTKVDGLESLLAALNAEKI--KLVALFSSAAGFYGNTGQSDYAMSNDILNK 2368 (2773) T ss_pred HHHHHHHHHCCHHHHHHHHHHHHCHHCC--CEEEEEECCCCCCCCCCCCHHHHHHHHHHH T ss_conf 1787753520016889999975143106--577875110245788885317788888889

HHsearch alignment for GI: 254780462 and conserved domain: TIGR02813