1.2.1.85	2-hydroxymuconate-6-semialdehyde dehydrogenase	protocatechuate degradation III (para-cleavage pathway)	
4.1.1.77	2-oxo-3-hexenedioate decarboxylase	protocatechuate degradation III (para-cleavage pathway)	
5.3.2.6	2-hydroxymuconate tautomerase	protocatechuate degradation III (para-cleavage pathway)