Reaction catalyzed by 16S rRNA (uracil1498-N3)-methyltransferase (2.1.1.193)

		+		uracil1498 in 16S rRNA	=			+		N3-methyluracil1498 in 16S rRNA
	S-adenosyl-L-methionine	+		uracil1498 in 16S rRNA	=		S-adenosyl-L-homocysteine	+		N3-methyluracil1498 in 16S rRNA