Reaction catalyzed by lipid IVA 4-amino-4-deoxy-L-arabinosyltransferase (2.4.2.43)

		+			=			+
	4-amino-4-deoxy-alpha-L-arabinopyranosyl ditrans,octacis-undecaprenyl phosphate	+		lipid IVA	=		lipid IIA	+		ditrans,octacis-undecaprenyl phosphate