2.3.1.136	acetyl-CoA + an alpha-2,8-linked polymer of sialic acid	-	
2.3.1.136	acetyl-CoA + sialic acid polymer of length 12-14	-	
2.3.1.136	additional information	polysialic-acid O-acetyltransferase is responsible for the majority of bacterial capsule modification that takes place in vivo. In addition, there exists a minor polysialic-acid O-acetyltransferase independent pathway involving O-acetylation of monomeric sialic acid