>cd06197 FNR_like_2 FAD/NAD(P) binding domain of ferredoxin reductase-like proteins. Ferredoxin reductase (FNR) 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 have a variety of physiological functions in a variety of organisms including nitrogen assimilation, dinitrogen fixation, steroid hydroxylation, fatty acid metabolism, oxygenase activity, and methane assimilation. FNR has an NAD(P)-binding sub-domain of the alpha/beta class and a discrete (usually N-terminal) flavin sub-domain which varies in orientation with respect to the NAD(P) binding domain. The N-terminal moeity

Probab=99.96 E-value=1.7e-28 Score=210.32 Aligned_cols=187 Identities=17% Similarity=0.232 Sum_probs=126.7 Q ss_pred EEEECCCCEEEEEEECCCC---CCCCCCCEEEEEEECC---CE-------------EEEEEEEECCCCCC----CCEEEE Q ss_conf 8884799869999807789---9839971799998439---85-------------88766542285768----860589 Q gi|254780363|r 19 SIKHYTDRLFRFCITRPKS---FRFRSGEFVMLGLMVN---GR-------------RISRAYSMASPCWD----DKLEFF 75 (264) Q Consensus 19 ~v~~~t~~~~~~~l~~~~~---~~f~~GQ~v~i~~~~~---g~-------------~~~R~YSiaS~p~~----~~le~~ 75 (264) T Consensus 2 kke~ltp~i~~F~f~~~d~~~~~~~~pGQ~itl~~~~~l~~gy~hm~d~~P~slndd~vRtyTiSS~P~~~~~~~~~~It 81 (220) T cd06197 2 KSEVITPTLTRFTFELSPPDVVGKWTPGQYITLDFSSELDSGYSHMADDDPQSLNDDFVRTFTVSSAPPHDPATDEFEIT 81 (220) T ss_pred CCCCCCCCCCEEEEEECCCCCCCCCCCCCEEEEECCCCCCCCCEEECCCCCCCCCCCCEEEEEECCCCCCCCCCCEEEEE T ss_conf 64315887016999808976566789965799976655676614404799864567734898862389998877679999 Q ss_pred EEEECCCCCCCCCC-CCCCC----CEEECCCCCCCCCCCCCC--CCCCEEEEEECCCCHHHHHHHHHHHHHHC-CCCCEE Q ss_conf 99943888566100-12388----510025788732164322--35866999975867277899887634103-578579 Q gi|254780363|r 76 SIKVEQGPLTTHLQ-NIQPG----DTILLHKKSTGTLVLDAL--IPGNRLYLFSTGTGIAPFVSVIRDPGTYE-KFDEVI 147 (264) Q Consensus 76 i~~v~~G~~S~~L~-~l~~G----d~i~i~~~p~G~f~~d~~--~~~~~lilIAgGtGItP~~sii~~~~~~~-~~~~i~ 147 (264) T Consensus 82 vk--~~G~vS~~Lh~~~~~g~~~g~~~p~~G-~~G~F~l~~~~~~~~~~~~~~~~g~gitp~~~~~~~~~~~~~~~~~v~ 158 (220) T cd06197 82 VR--KKGPVTGFLFQVARRLREQGLEVPVLG-VGGEFTLSLPGEGAERKMVWIAGGVGITPFLAMLRAILSSRNTTWDIT 158 (220) T ss_pred EE--ECCCCCHHHHHHHHCCCCCCEEEEEEC-CCCCEEECCCCCCCCCCEEEEECCCCCCHHHHHHHHHHHCCCCCCCEE T ss_conf 98--788436889875652577643777553-776657236777767734898246666608999999874557787689 Q ss_pred EEEECCCHHHHHHHHHHHHHHHHHHHHHHHHCCCCEEEEECCCCCCCCCCCCCCCCCCCHHHHHCCCCCCCHHCCEEEEE Q ss_conf 99951998898733566898986445777405884389820454444465677543110478852899887313789996 Q gi|254780363|r 148 VTQTCRQVVELQYGIDVMHEISQDEILKDLIGQKLKFYRTVTQEDYLYKGRITNHILSGEFYRNMDLSPLNPDTDRIMIC 227 (264) Q Consensus 148 L~~g~R~~~dl~y~~~l~~~~~~~~~~~~~~~~~~~~~~~~s~e~~~~~grit~~i~~g~l~~~~~~~~~~~~~~~vyiC 227 (264) T Consensus 159 l~~s~r~~d~~~~~d~l~~----------~-------------p~--~~~~~~l-~----------------~t~d~YlC 196 (220) T cd06197 159 LLWSLREDDLPLVMDTLVR----------F-------------PG--LPVSTTL-F----------------ITSEVYLC 196 (220) T ss_pred EEEECCCCCHHHHHHHHHH----------C-------------CC--CCCCCCC-C----------------CCCCEEEE T ss_conf 9993564104679998743----------6-------------47--4334445-4----------------45319998 Q ss_pred CCHHHHHHHHHHHHHCCCCCCCCCCCCEEEEEEEE Q ss_conf 89899999999999869853156799509999876 Q gi|254780363|r 228 GSPTMIVDMKDLLIAKKFREGSNSRPGTFVVERAF 262 (264) Q Consensus 228 Gpp~Mi~~v~~~L~~~G~~~~~~~~~g~~~~E~~~ 262 (264) T Consensus 197 GP~~fm~av~~~L~~-----------erIh~E~-F 219 (220) T cd06197 197 GPPALEKAVLEWLEG-----------KKVHRES-F 219 (220) T ss_pred CCHHHHHHHHHHHCC-----------CCEEECC-C T ss_conf 999999999976430-----------7778286-6

HHsearch alignment for GI: 254780363 and conserved domain: cd06197