CYB5_HORSE MAEQSDKAVKYYTLEEIKKHNHSKSTWLILHHKVYDLTKFLEDHPGGEEVLREQAGGDATENFEDIGHSTDARELSKTFIIGELHPDDRSKIAKPVETLITTVDSNSSWWTNWVIPAISAVVVALMYRIYTAED Cytochrome b5 CYB5 Cytochrome b5 is a membrane bound hemoprotein which function as an electron carrier for several membrane bound oxygenases. 134 CYB5A