5.1.3.28	UDP-2-acetamido-2,6-dideoxy-beta-L-talose	specific substrate	
5.1.3.28	UDP-2-acetamido-2,6-dideoxy-beta-L-talose	the enzyme is involved in bacterial polysaccharide biosynthesis	
5.1.3.28	UDP-N-acetyl-L-pneumosamine	-