Figure 5.

(A) Catechol meta cleavage and 4-hydroxybenzoate degradation pathways by Sphingomonas species. Catechol meta cleavage pathway consist of four genes: (1) Catechol 2,3-dioxygenase; (2) 2-hydroxymuconic semialdehyde hydrolase; (3) 2-keto-4-pentenoate hydratase; (4) 4-hydroxy-2-oxovalerate aldolase. 4-hydroxybenzoate degradation pathways contain seven genes: (1) P-hydroxybenzoate hydroxylase; (2) Protocatechuate 4,5-dioxygenase; (3) 4-carboxy-2-hydroxymuconate-6-semialdehyde dehydrogenase; (4) 2-pyrone-4,6-dicarboxylic acid hydrolase; (5) 4-oxalomesaconate tautomerase; (6) 4-oxalomesaconate hydratase; (7) 4-carboxy-4-hydroxy-2-oxoadipate aldolase. (B) Position of genes that encode catechol meta cleavage and 4-hydroxybenzoate metabolism from S. panacis DCY99^T genome.