2.5.1.51	O-succinyl-L-serine + pyrazole	at 16% the rate of O-acetyl-L-serine	Citrullus lanatus subsp. vulgaris	355314	
2.5.1.51	O-sulfo-L-serine + pyrazole	at 2.5% the rate of O-acetyl-L-serine	Citrullus lanatus subsp. vulgaris	355315	
2.5.1.51	O3-acetyl-L-serine + 3-amino-1,2,4-triazole	at 11% the rate of pyrazole	Citrullus lanatus subsp. vulgaris	355312	
2.5.1.51	O3-acetyl-L-serine + N-hydroxyurea	at 9% the rate of pyrazole	Citrullus lanatus subsp. vulgaris	355313	
2.5.1.51	O3-acetyl-L-serine + pyrazole	highly specific	Citrullus lanatus subsp. vulgaris	355311	
2.5.1.51	O3-acetyl-L-serine + pyrazole	involved in biosynthesis of heterocyclic beta-substituted alanines	Citrullus lanatus subsp. vulgaris	355311