Reaction catalyzed by beta-pyrazolylalanine synthase (2.5.1.51), L-mimosine synthase (2.5.1.52)

		+			=			+
	O3-acetyl-L-serine	+		3-amino-1,2,4-triazole	=		3-(3-amino-1,2,4-triazol-1-yl)-L-alanine	+		acetate