4.4.1.1	cystathionine gamma-lyase	-	
4.4.1.2	homocysteine desulfhydrase	-	
4.4.1.3	dimethylpropiothetin dethiomethylase	-	
4.4.1.4	alliin lyase	-	
4.4.1.5	lactoylglutathione lyase	-	
4.4.1.9	L-3-cyanoalanine synthase	-	
4.4.1.10	cysteine lyase	-	
4.4.1.11	methionine gamma-lyase	-	
4.4.1.13	cysteine-S-conjugate beta-lyase	-	
4.4.1.14	1-aminocyclopropane-1-carboxylate synthase	-