Reaction catalyzed by galactokinase (2.7.1.6), N-acetylgalactosamine kinase (2.7.1.157), N-acetylhexosamine 1-kinase (2.7.1.162)

	ATP	+			=		ADP	+
	ATP	+		D-galactose	=		ADP	+		D-galactose 1-phosphate