During Beta-oxidation in the first step R-CH2-CH2-CO-SCoA (Acyl CoA) is converted into R-CH2-CH=CH-CO-SCoA(Trans-delta2-enoyl CoA) with the conversion of FAD intoFADH2.
My question is are the two electrons and protons needed for reduction of FAD provided by Acyl CoA for Acyl CoA can only loose a H- and a H+ to become unsaturated, Trans-delta2-enoyl CoA,?