Studies on the polyglutamate specificity of thymidylate synthase from fetal pig liver.


Thymidylate synthase has been purified 1700-fold from fetal pig livers by using chromatography on Affigel-Blue, DEAE-52, and hydroxylapatite. Steady-state kinetic measurements indicate that catalysis proceeds via an ordered sequential mechanism. When 5,10-methylenetetrahydro-pteroylmonoglutamate (CH2-H4PteGlu1) is used as the substrate, dUMP is bound prior… (More)


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