Reaction catalyzed by S-methyl-5'-thioadenosine phosphorylase (2.4.2.28)

		+			=			+
	2'-deoxy-2-fluoro-5'-deoxy-5'-methylthioadenosine	+		phosphate	=		adenine	+		2-deoxy-2-fluoro-5-thio-D-ribose 1-phosphate