>cd06216 FNR_iron_sulfur_binding_2 Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding regions of FNR with an iron-sulfur binding cluster domain. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to for

Probab=100.00 E-value=0 Score=331.26 Aligned_cols=230 Identities=21% Similarity=0.368 Sum_probs=189.1 Q ss_pred CCCCCCCCCCCEEEEEEEECCCCEEEEEEECCCC-CCCCCCCEEEEEEECCCEEEEEEEEECCCCCC--CCEEEEEEEEC Q ss_conf 7744366531068988884799869999807789-98399717999984398588766542285768--86058999943 Q gi|254780363|r 4 VSPKLPVNVYCESVISIKHYTDRLFRFCITRPKS-FRFRSGEFVMLGLMVNGRRISRAYSMASPCWD--DKLEFFSIKVE 80 (264) Q Consensus 4 ~~~~~p~~~~~~~V~~v~~~t~~~~~~~l~~~~~-~~f~~GQ~v~i~~~~~g~~~~R~YSiaS~p~~--~~le~~i~~v~ 80 (264) T Consensus 9 ~~p~~~~r~~~a~V~~i~~~t~dv~~l~l~p~~~~~~f~pGQ~v~l~~~~~g~~~~R~ySias~p~~~~~~l~l~Vk~~~ 88 (243) T cd06216 9 INPLWSARELRARVVAVRPETADMVTLTLRPNRGWPGHRAGQHVRLGVEIDGVRHWRSYSLSSSPTQEDGTITLTVKAQP 88 (243) T ss_pred CCCCCCCCEEEEEEEEEEEECCCEEEEEEEECCCCCCCCCCCEEEEEEEECCEEEEEEEECCCCCCCCCCEEEEEEEEEC T ss_conf 47241078758999999990899199999989978872899879999714990777776555699999989999999938 Q ss_pred CCCCCCCCCC-CCCCCEEECCCCCCCCCCCCCCCCCCEEEEEECCCCHHHHHHHHHHHHHHCCCCCEEEEEECCCHHHHH Q ss_conf 8885661001-238851002578873216432235866999975867277899887634103578579999519988987 Q gi|254780363|r 81 QGPLTTHLQN-IQPGDTILLHKKSTGTLVLDALIPGNRLYLFSTGTGIAPFVSVIRDPGTYEKFDEVIVTQTCRQVVELQ 159 (264) Q Consensus 81 ~G~~S~~L~~-l~~Gd~i~i~~~p~G~f~~d~~~~~~~lilIAgGtGItP~~sii~~~~~~~~~~~i~L~~g~R~~~dl~ 159 (264) T Consensus 89 ~G~~S~~L~~~l~~Gd~v~v~g-P~G~F~l~~~-~~~~~vliAgG~GitP~~sml~~l~~~~~~~~v~l~yg~r~~~d~~ 166 (243) T cd06216 89 DGLVSNWLVNHLAPGDVVELSQ-PQGDFVLPDP-LPPRLLLIAAGSGITPVMSMLRTLLARGPTADVVLLYYARTREDVI 166 (243) T ss_pred CCCHHHHHHHCCCCCCEEEEEC-CCCCCCCCCC-CCCCEEEEEECCCCCHHHHHHHHHHHCCCCCCEEEEEECCCHHHHH T ss_conf 9916889985489999999956-6047424887-8887899990787782899999999739999999997128889988 Q ss_pred HHHHHHHHHHHHHHHHHHHCCCCEEEEECCCCCCCCCCCCCCCCCCCHHHHHCCCCCCCHHCCEEEEECCHHHHHHHHHH Q ss_conf 33566898986445777405884389820454444465677543110478852899887313789996898999999999 Q gi|254780363|r 160 YGIDVMHEISQDEILKDLIGQKLKFYRTVTQEDYLYKGRITNHILSGEFYRNMDLSPLNPDTDRIMICGSPTMIVDMKDL 239 (264) Q Consensus 160 y~~~l~~~~~~~~~~~~~~~~~~~~~~~~s~e~~~~~grit~~i~~g~l~~~~~~~~~~~~~~~vyiCGpp~Mi~~v~~~ 239 (264) T Consensus 167 ~~~eL~~l~~~~--------~~~~~~~~~s~~~--~~g~~~~----~~l~~~~----~d~~~~~vyiCGPp~M~~av~~~ 228 (243) T cd06216 167 FADELRALAAQH--------PNLRLHLLYTREE--LDGRLSA----AHLDAVV----PDLADRQVYACGPPGFLDAAEEL 228 (243) T ss_pred HHHHHHHHHHHC--------CCEEEEEEECCCC--CCCCCCH----HHHHHHC----CCCCCCEEEEECCHHHHHHHHHH T ss_conf 899999999778--------9929999988876--5788599----9998547----88789789993989999999999 Q ss_pred HHHCCCCCCCCCCCCEEEEEE Q ss_conf 998698531567995099998 Q gi|254780363|r 240 LIAKKFREGSNSRPGTFVVER 260 (264) Q Consensus 240 L~~~G~~~~~~~~~g~~~~E~ 260 (264) T Consensus 229 L~~~Gv~~-------~ih~E~ 242 (243) T cd06216 229 LEAAGLAD-------RLHTER 242 (243) T ss_pred HHHCCCCC-------CEEEEE T ss_conf 98589721-------208535

HHsearch alignment for GI: 254780363 and conserved domain: cd06216