>gnl|CDD|99791 cd06194, FNR_N-term_Iron_sulfur_binding, Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding regions of FNR with an N-terminal 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 form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.. Length = 222

 Score = 43.8 bits (104), Expect = 4e-05
 Identities = 29/115 (25%), Positives = 48/115 (41%), Gaps = 6/115 (5%)

Query: 24  TDRLFRFCITRPKSFRFRSGEFVMLGLIVNGRPIFRAYSIAS-PCRDDKLEFCSIKVDKG 82
           +  + R  +   +   +  G++V   L   G    R+YS  S P  D++LEF   +   G
Sbjct: 8   SPDVLRVRLEPDRPLPYLPGQYV--NLRRAGGLA-RSYSPTSLPDGDNELEFHIRRKPNG 64

Query: 83  FFTTYL-QNIQPGDTILLHKKSTGDLILDSLIPGNRLYLFSMGTGIAPFASMIRD 136
            F+ +L +  +PG  + L +   G            L L   GTG+AP   + R 
Sbjct: 65  AFSGWLGEEARPGHALRL-QGPFGQAFYRPEYGEGPLLLVGAGTGLAPLWGIARA 118