3-hydroxy-L-kynurenine + 4-methylsulfanyl-2-oxobutanoate = 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate + L-methionine
3-hydroxy-l-kynurenine + 4-methylsulfanyl-2-oxobutanoate = 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate + l-methionine