>cd00322 FNR_like Ferredoxin reductase (FNR), an FAD and NAD(P) binding protein, was intially identified as a chloroplast reductase activity, catalyzing the electron transfer from reduced iron-sulfur protein ferredoxin to NADP+ as the final step in the electron transport mechanism of photosystem I. FNR transfers electrons from reduced ferredoxin to FAD (forming FADH2 via a semiquinone intermediate) and then transfers a hydride ion to convert NADP+ to NADPH. FNR has since been shown to utilize a variety of electron acceptors and donors and has a variety of physiological functions including nitrogen assimilation, dinitrogen fixation, steroid hydroxylation, fatty acid metabolism, oxygenase activity, and methane assimilation in many organisms. FNR has an NAD(P)-binding sub-domain of the alpha/beta class and a discrete (usually N-terminal) flavin sub-domain which vary in orientation with respect to the NAD(P) binding domain. The N-terminal moeity may contain a flavin prosthetic group (as in

Probab=100.00 E-value=9.4e-37 Score=244.66 Aligned_cols=170 Identities=27% Similarity=0.427 Sum_probs=149.4 Q ss_pred EEEEECCCCEEEEEEECCCCCCCCCCCEEEECCCCCCCCEEEEEEECCCCCC-CCCEEEEEEECCCCCCCCCCCCCCCCC Q ss_conf 8998479986999980789997389857880314586110556432056677-760179996157676531000022222 Q gi|254780364|r 18 ISVKHYTDRLFRFCITRPKSFRFRSGEFVMLGLIVNGRPIFRAYSIASPCRD-DKLEFCSIKVDKGFFTTYLQNIQPGDT 96 (224) Q Consensus 18 ~~~~~~T~~~~~l~l~~p~~~~f~aGQ~~~l~~~~~g~~~~R~ySiaS~p~~-~~~~~~i~~~~~g~~s~~l~~~~~gd~ 96 (224) T Consensus 1 ~~~~~~t~d~~~~~~~~~~~~~~~pGQ~v~l~~~~~g~~~~R~ySi~s~p~~~~~~~~~ik~~~~G~~s~~L~~l~~G~~ 80 (223) T cd00322 1 VATEDVTDDVRLFRLQLPNGFSFKPGQYVDLHLPGDGRGLRRAYSIASSPDEEGELELTVKIVPGGPFSAWLHDLKPGDE 80 (223) T ss_pred CCCEECCCCEEEEEEECCCCCCCCCCEEEEEEECCCCCEEEEEEEECCCCCCCCEEEEEEEEECCCCCCHHHCCCCCCCE T ss_conf 97247589929999987998885998349999645995657888766269999989999999899985730222799999 Q ss_pred CEECCCCCCCCCCCCCCCCCCEEEEECCCCHHHHHHHHHHHHHCCCCCEEEEEEECCCHHHHHHHHHHHHHHHHHHHHCC Q ss_conf 10016887533564467688179996586808899999986530886338999940586454304888998875332101 Q gi|254780364|r 97 ILLHKKSTGDLILDSLIPGNRLYLFSMGTGIAPFASMIRDPETYKKFDEVIITHTCGRVAELQYGIDVMHEISQDEILKD 176 (224) Q Consensus 97 ~~~~~~p~g~f~~~~~~~~~~lvlIAgGtGiaP~~silr~~~~~~~~~~i~l~~g~R~~~dl~~~~el~~l~~~~~~~~~ 176 (224) T Consensus 81 v~v-~gP~G~f~~~~~-~~~~~vliagG~GitP~~s~l~~~~~~~~~~~v~l~~g~r~~~~~~~~~el~~l~~~~~---- 154 (223) T cd00322 81 VEV-SGPGGDFFLPLE-ESGPVVLIAGGIGITPFRSMLRHLAADKPGGEITLLYGARTPADLLFLDELEELAKEGP---- 154 (223) T ss_pred EEE-EECCCCCCCCCC-CCCCEEEEECCCCCHHHHHHHHHHHHCCCCCCEEEEEECCCHHHHHHHHHHHHHHHHCC---- T ss_conf 999-937765321467-99878999778661469999999997488886399862489789678999999997589---- Q ss_pred CCCCCEEEEEEECCCCCCCCC Q ss_conf 246875999810578877667 Q gi|254780364|r 177 LIGQKLKFYRTVTQEDYLYKG 197 (224) Q Consensus 177 ~~~~~~~~~~~isre~~~~~G 197 (224) T Consensus 155 ----~~~~~~~~~~~~~~~~~ 171 (223) T cd00322 155 ----NFRLVLALSRESEAKLG 171 (223) T ss_pred ----CEEEEEEECCCCCCCCC T ss_conf ----98999998778767656

HHsearch alignment for GI: 254780364 and conserved domain: cd00322