. "Catalysis of the reaction: (4-hydroxyphenyl)acetate + H(+) = 4-cresol + CO(2)." . . "4-hydroxyphenylacetate decarboxylase activity" . "4-(hydroxyphenyl)acetate carboxy-lyase (4-methylphenol-forming)" . "4-Hpd activity" . "4-hydroxyphenylacetate carboxy-lyase activity" . "p-Hpd activity" . "p-hydroxyphenylacetate decarboxylase activity" . . .