>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=95.52 E-value=0.041 Score=32.30 Aligned_cols=176 Identities=20% Similarity=0.243 Sum_probs=103.7 Q ss_pred CCEEEEECCCCHHHHHHHHHHHHCCC-EEEEEECCC--C---------CC-HHH------------------H------- Q ss_conf 44799968788277999999998798-899992687--6---------75-213------------------0------- Q gi|254780328|r 3 NKNVLVVGGAGYIGAHTCRVLYERGF-LPIVLDNLS--S---------GH-AEF------------------V------- 44 (333) Q Consensus 3 ~kkIlItG~tGfiGs~l~~~L~~~g~-~v~~~d~~~--~---------~~-~~~------------------~------- 44 (333) T Consensus 2159 ~~~~LV~GGAKGVT~~C~l~lAK~~~a~FiL~GRS~~~~~~~~P~WA~G~s~~~~LK~AA~~~l~~~GeKPTP~~V~~lv 2238 (2773) T TIGR02813 2159 DDKVLVTGGAKGVTFECALELAKQCQAHFILAGRSSHIADDELPSWAQGKSDENELKKAAIQHLQASGEKPTPKKVDALV 2238 (2773) T ss_pred CCCEEEECCCCCHHHHHHHHHHHHHCCCEEEECCHHHHHHCCCCCCCCCCCHHHHHHHHHHHHHHHCCCCCCCHHHHHHH T ss_conf 87178837876225999999987532114550330455520687410465035678999999998638998852258664 Q ss_pred --------------------CCCCEEEEECCCHHHHHHHHHHC---------CCCEEEECHHHCCCCC----CCCCCEEE Q ss_conf --------------------23867984268999999998756---------9889995714401122----34310012 Q gi|254780328|r 45 --------------------LWGPLEQVDICDYTNLRAVFAKY---------QPASVMHFAGLTNISE----SVKNPSLF 91 (333) Q Consensus 45 --------------------~~~~~~~~Di~d~~~l~~~~~~~---------~~d~ViHlAa~~~~~~----~~~~p~~~ 91 (333) T Consensus 2239 ~PV~s~~EI~~aLaA~~a~Ga~A~Y~s~DV~~s~sva~~~~~~~~~~g~gsl~iTGiIHGAGVLADK~I~~KTL~E~~~V 2318 (2773) T TIGR02813 2239 KPVLSSLEIAQALAAFKAVGASAEYLSVDVTDSVSVAATVAPLNKLLGQGSLDITGIIHGAGVLADKHIQDKTLEEFNAV 2318 (2773) T ss_pred HHHHHHHHHHHHHHHHHHCCCCEEEEEEECCCHHHHHHHHHHHHHHHCCCCCCCCEEEECCHHHHHHHHHHHHHHHHHHH T ss_conf 12354578999999998518871478860488478999999999861687621003664411342344534017877535 Q ss_pred EEECCCCCCCCCCCCCCCCCCCCCCCCCCC-CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC Q ss_conf 330123332221122222222222233332-2222222222222222222222222223332222222222222222222 Q gi|254780328|r 92 YEINIKGSFNLIATAIESNVRRFIFSSTCA-TYGIPHNTIITENDPQESITPYGYTKYVVERELLQHNKVNGLRSVVLRY 170 (333) Q Consensus 92 ~~~Nv~gt~~ll~~~~~~~~~~~i~~SS~~-vYG~~~~~~~~E~~~~~p~~~Yg~sK~~~E~~~~~~~~~~~~~~~~~R~ 170 (333) T Consensus 2319 YgTKv~GL~~lL~a~~~~~~K~~~lFSSAAGFYGN~GQS------------DYa~sNdILNKaAl~l~~~--~P~A~V~S 2384 (2773) T TIGR02813 2319 YGTKVDGLESLLAALNAEKIKLVALFSSAAGFYGNTGQS------------DYAMSNDILNKAALQLKAR--NPEAKVLS 2384 (2773) T ss_pred HCCHHHHHHHHHHHHCHHCCCEEEEEECCCCCCCCCCCC------------HHHHHHHHHHHHHHHHHHH--CCCCEEEE T ss_conf 200168899999751431065778751102457888853------------1778888888999999861--99733873 Q ss_pred CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC Q ss_conf 2222222222222233333222222222222222 Q gi|254780328|r 171 FNAAGATLDSIIGEWHNPETHVIPLAIKTAMGYQ 204 (333) Q Consensus 171 ~~vyGp~~~~~~g~~~~~~~~~~~~~i~~~~~~~ 204 (333) T Consensus 2385 F---------~WGPWDGG---MV~p~LKkMF~DR 2406 (2773) T TIGR02813 2385 F---------NWGPWDGG---MVNPALKKMFIDR 2406 (2773) T ss_pred C---------CCCCCCCC---CCCHHHHHHHHCC T ss_conf 1---------47888876---2276787443038

HHsearch alignment for GI: 254780328 and conserved domain: TIGR02813