>cd02930 DCR_FMN 2,4-dienoyl-CoA reductase (DCR) FMN-binding domain. DCR in E. coli is an iron-sulfur flavoenzyme which contains FMN, FAD, and a 4Fe-4S cluster. It is also a monomer, unlike that of its eukaryotic counterparts which form homotetramers and lack the flavin and iron-sulfur cofactors. Metabolism of unsaturated fatty acids requires auxiliary enzymes in addition to those used in b-oxidation. After a given number of cycles through the b-oxidation pathway, those unsaturated fatty acyl-CoAs with double bonds at even-numbered carbon positions contain 2-trans, 4-cis double bonds that can not be modified by enoyl-CoA hydratase. DCR utilizes NADPH to remove the C4-C5 double bond. DCR can catalyze the reduction of both natural fatty acids with cis double bonds, as well as substrates containing trans double bonds. The reaction is initiated by hybrid transfer from NADPH to FAD, which in turn transfers electrons, one at a time, to FMN via the 4Fe-4S cluster. The fully reduced FMN provi

Probab=98.63 E-value=3.3e-05 Score=49.04 Aligned_cols=139 Identities=14% Similarity=0.116 Sum_probs=83.3 Q ss_pred HHHHHHCCCEEEECCCCHHHH---HH-HCCCC---C-------HHHHHHHHHHHHHHCCC--CEEEEEC-----CCCCCH Q ss_conf 877650898576253203566---52-06885---2-------43079999999987399--7178504-----786688 Q gi|254781020|r 139 QAVHVLGADGLFLHLNPLQEI---IQ-PNGNT---N-------FADLSSKIALLSSAMDV--PLLLKEV-----GCGLSS 197 (337) Q Consensus 139 ~~~~~~~~~~~~~~~~~~~~~---~~-~~~~~---~-------~~~~~~~i~~l~~~~~~--pii~k~v-----~~~~~~ 197 (337) T Consensus 144 ~rA~~AGfDgVEIH~ahGyLl~qFLSp~~N~RtDeYGGs~eNR~Rf~~Eiv~aVr~~vg~d~~v~~Ris~~d~~~~G~~~ 223 (353) T cd02930 144 ALAREAGYDGVEIMGSEGYLINQFLAPRTNKRTDEWGGSFENRMRFPVEIVRAVRAAVGEDFIIIYRLSMLDLVEGGSTW 223 (353) T ss_pred HHHHHCCCCEEEECCCCCHHHHHHCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCEEEEECCCCCCCCCCCCH T ss_conf 99998299989962567614877338754788574579878887999999999999709987499973601268999899 Q ss_pred HHH----HHHHHCCCCEEEECCCCCCCCCCHHHHCCCCCCCCHHHHHCCCCH---HHHHHHHHHHCCCCEEEECCCCCCH Q ss_conf 999----999976997999458888651001231023443232443106346---8899999852289879972988888 Q gi|254781020|r 198 MDI----ELGLKSGIRYFDIAGRGGTSWSRIESHRDLESDIGIVFQDWGIPT---PLSLEMARPYCNEAQFIASGGLRNG 270 (337) Q Consensus 198 ~~~----~~a~~aGad~i~v~~~gG~~~~~~~~~r~~~~~~~~~~~~~gi~~---~~al~~~~~~~~~v~IiadGGIr~g 270 (337) T Consensus 224 ~e~~~~~~~l~~~GvD~i~vs~G~~~--~~~~-------~~-----~~~~p~g~~~~~a~~ir~-~~~~Pvi~~G~i~~p 288 (353) T cd02930 224 EEVVALAKALEAAGADILNTGIGWHE--ARVP-------TI-----ATSVPRGAFAWATAKLKR-AVDIPVIASNRINTP 288 (353) T ss_pred HHHHHHHHHHHHCCCCEEEECCCCCC--CCCC-------CC-----CCCCCCHHHHHHHHHHHH-HCCCCEEECCCCCCH T ss_conf 99999999999819999996377444--6687-------53-----345772366999999887-548348965997989 Q ss_pred HHHHHHHHHC-CCEEHHHHHHHH Q ss_conf 9999999838-885233479999 Q gi|254781020|r 271 VDILKSIILG-ASLGGLASPFLK 292 (337) Q Consensus 271 ~Dv~kAlalG-AdaV~iGr~~l~ 292 (337) T Consensus 289 ~~ae~~l~~g~aD~V~~gR~lia 311 (353) T cd02930 289 EVAERLLADGDADMVSMARPFLA 311 (353) T ss_pred HHHHHHHHCCCCCHHHHHHHHHH T ss_conf 99999998799624784099876

HHsearch alignment for GI: 254781020 and conserved domain: cd02930