Euphorbain, a protease occurring in the latex of the weed <i>Euphorbia lathyris</i>

Abstract

METABOLISM OF SEMEN 465 the introductory phase of glycolysis, is later recon- stituted (a) through the transfer of the phosphate group from phosphoglyceric acid to adenylic acid and (b) by way of a reaction between inorganic phosphate and adenylic acid, which forms part of the cozymase-catalyzed 'phosphorylative oxidoreduction'. 5. Evidence is provided in support of the view that ATP is the substance through jvhich a link is established between the activity of spermatozoa on the one hand and glycolysis on the other.