NADH-plastoquinone oxidoreductase subunit 2 B NAD(P)H-quinone oxidoreductase subunit 2 B, chloroplastic NDH shuttles electrons from NAD(P)H:plastoquinone, via FMN and iron-sulfur (Fe-S) centers, to quinones in the photosynthetic chain and possibly in a chloroplast respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be plastoquinone. Couples the redox reaction to proton translocation, and thus conserves the redox energy in a proton gradient (By similarity). 510 NAD(P)H dehydrogenase, subunit 2 B ndhB2 MIWHVQNENFILDSTRIFMKAFHLLLFQGSFIFPECILIFGLILLLMIDLTSDQKDRPWFYFISSTSLVISITALLFRWREEPIISFSGNFQTNNFNEIFQFLILLCSTLCIPLSVEYIECTEMAITEFLLFVLTATLGGMFLCGANDLITIFVALECFSLCSYLLSGYTKRDLRSNEATMKYLLMGGASSSILVYGFSWLYGLSGGEIELQEIVNGLINTQMYNSPGISIALIFITVGLGFKLSLAPFHQWTPDVYEGSPTPVVAFLSVTSKVAALALATRILDIPFYFSSNEWHLLLEILAILSMILGNLLAITQTSMKRMLAYSSIGQIGYVIIGIIVGDSNDGYASMITYMLFYISMNLGTFACIVLFGLRTGTDNIRDYAGLYTKDPFLALSLALCLLSLGGLPPLAGFFGKLYLFWCGWQAGLYFLVSIGLLTSVLSIYYYLKIVKLLMTGRNQEITPYVRNYRRSPLRSNNSIELSMTVCVIASTILGISMNPILAIAQDTLF NU2C2_ORYSI