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The influence of the effectors of yeast pyruvate decarboxylase (PDC) on the conformation of the dimers and tetramers and their pH-dependent equilibrium
Journal de Physique IV : Proceedings
The influence of effectors of yeast pyruvate decarboxylase, phosphate, pyruvamide, thiamin diphosphate and Mg*, on the pH-dependent equilibrium between dimers and tetramers was studied by synchrotron radiation X-ray solution scattering. Thiamin diphosphate and phosphate shift the equilibrium to higher values without altering the structure of the oligomers. Pyruvamide, a substrate analogue activator, induces a sigruficant change in the structure of the tetramer. By eliminating radiation damagedoi:10.1051/jp4:1994953 fatcat:u7sltoikbva4zbvwttm2eieaza