Status	Description	Organism	Genes	References
	protocatechuate 3,4-dioxygenase beta chain	Agrobacterium fabrum	ATU4540 ATU4539
	protocatechuate 3,4-dioxygenase	Caulobacter crescentus	CC2408 CC2409
	gallate:oxygen 3,4-oxidoreductase	Pseudomonas putida	GIXO-4682 GIXO-4681
	protocatechuate 3,4-dioxygenase alpha subunit	Streptomyces coelicolor	SCO6699
	protocatechuate 3,4-dioxygenase beta subunit	Streptomyces coelicolor	SCO6700