4.1.99.2	tyrosine phenol-lyase	alpha,beta-elimination	-	Citrobacter freundii	P31013, P31013	
4.1.99.2	tyrosine phenol-lyase	alpha,beta-elimination	-	Pantoea agglomerans	-	
4.4.1.1	cystathionine gamma-lyase	alpha,beta-elimination	-	Treponema denticola	-