NADH中的电子通过NADH dehydrogenase( complex进入呼吸链 e Also named as Nadh ubiquinone oxidoreductase or NADH-Q reductase e a L' Shaped 850 kD multimeric protein complex of 42 different subunits(larger than a ribosome!) e polypeptides encoded by both genomes e fmn. Fe-s centers act as prosthetic groups e Exergonic electron transferring is coupled to endergonic proton pumping( with 4 Ht pumped from the matrix side to intermem brane space per electron pair transferred), with mechanism unknown e Final electron acceptor is ubiquinone(coenzyme Q) Also named as NADH:ubiquinone oxidoreductase or NADH-Q reductase.  A “L” shaped 850 kD multimeric protein complex of 42 different subunits (larger than a ribosome!).  Polypeptides encoded by both genomes.  FMN, Fe-S centers act as prosthetic groups.  Exergonic electron transferring is coupled to endergonic proton pumping ( with 4 H+ pumped from the matrix side to intermembrane space per electron pair transferred), with mechanism unknown.  Final electron acceptor is ubiquinone (coenzyme Q). NADH 中的电子通过 NADH dehydrogenase (complex I)进入呼吸链