The enzyme 4-methyloxaloacetate esterase (EC 3.1.1.44) catalyzes the reaction

oxaloacetate 4-methyl ester + H2O oxaloacetate + methanol

This enzyme belongs to the family of hydrolases, specifically those acting on carboxylic ester bonds. The systematic name is oxaloacetate-4-methyl-ester oxaloacetohydrolase.

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