RPSBLAST alignment for GI: 254780364 and conserved domain: cd00322
>gnl|CDD|99778 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 flavoenzymes) or use flavin as a substrate. Because flavins such as FAD can exist in oxidized, semiquinone (one- electron reduced), or fully reduced hydroquinone forms, FNR can interact with one and 2 electron carriers. FNR has a strong preference for NADP(H) vs NAD(H).. Length = 223
Score = 85.2 bits (211), Expect = 1e-17
Identities = 53/194 (27%), Positives = 86/194 (44%), Gaps = 15/194 (7%)
Query: 18 ISVKHYTDRLFRFCITRPKSFRFRSGEFVMLGLIVNGRPIFRAYSIAS-PCRDDKLEFCS 76
++ + TD + F + P F F+ G++V L L +GR + RAYSIAS P + +LE
Sbjct: 1 VATEDVTDDVRLFRLQLPNGFSFKPGQYVDLHLPGDGRGLRRAYSIASSPDEEGELELTV 60
Query: 77 IKVDKGFFTTYLQNIQPGDTILLHKKSTGDLILDSLIPGNRLYLFSMGTGIAPFASMIRD 136
V G F+ +L +++PGD + + GD L + L + G GI PF SM+R
Sbjct: 61 KIVPGGPFSAWLHDLKPGDEVEVSGP-GGDFFLPLE-ESGPVVLIAGGIGITPFRSMLRH 118
Query: 137 PETYKKFDEVIITHTCGRVAELQYGIDVMHEISQDEILKDLI--GQKLKFYRTVTQEDYL 194
K E+ + + A+L + DE L++L G + +++E
Sbjct: 119 LAADKPGGEITLLYGARTPADLLF---------LDE-LEELAKEGPNFRLVLALSRESEA 168
Query: 195 YKGRITNHILSGEF 208
G E
Sbjct: 169 KLGPGGRIDREAEI 182