however , the electron paramagnetic resonance spectrum of the bound probe changed to one typical of a `` '' strongly immobilized '' '' nitroxide upon the addition of a saturating concentration of the substrate acetyl coenzyme a ( acetyl-coa ) to the enzyme -- nitrosodisulfonate system , indicating the formation of a ternary acetyl-coa-enzyme-probe complex .
C0014442
e enzy
C0026741
a-enzy