NAD-Sepharose 4B gel was used to study the complexation between glyceraldehyde-3-phosphate dehydrogenase (D-glyceraldehyde-3-phosphate:NAD+ oxidoreductase (phosphorylating) EC 1.2.1.12) and aldolase (D-fructose-1,6-bisphosphate D-glyceraldehyde-3-phosphate-lyase, EC 4.1.2.13). An affinity sorbent specific for glyceraldehyde-3-phosphate dehydrogenase was utilised in a batch system. The dissociation constant of the enzyme complex was calculated. The method elaborated in our laboratory was used to investigate the effects of temperature and pH on the complex formation.
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