the total content and relative specific activity of the peptide increased with progressive purification of the synaptosomal fractions and generally followed the distribution of known synaptosomal constituents -- dopamine , norepinephrine , and lactate dehydrogenase ( l-lactate : nad+ oxidoreductase , ec 1.1.1.27 ) .
C0022917
lactate dehydrogenase
C0030016
oxidoreductase