2.3.1.210	evolution	WecD is a GNAT family member. The GNAT N-acetyltransferase fold is common to a number of enzymes involved in acetylation of histones, aminoglycoside antibiotics, serotonin, and sugars	-, 719706	
2.3.1.210	additional information	usage of flexible docking to generate a WecD-bound model of the acetyl-CoATDP-fucosamine tetrahedral intermediate, representing the structure during acetyl transfer. that WecD does not possess a residue that directly functions as a catalytic base, although Tyr208 is well positioned to function as a general acid by protonating the thiolate anion of CoA, modeling of TDP-D-Fuc4N:acetyl-CoA transition state bound to WecD, overview. The WecD tetrahedral intermediate results from nucleophilic attack of the 4-amino group of TDP-fucosamine at the acetyl-CoA thioester carbon atom	-, 719706	
2.3.1.210	physiological function	the enzyme is involved in biosynthesis of enterobacterial common antigen, ECA, a polysaccharide found on the outer membrane of virtually all Gram-negative enteric bacteria, that consists of three sugars, N-acetyl-D-glucosamine, N-acetyl-D-mannosaminuronic acid, and 4-acetamido-4,6-dideoxy-D-galactose, organized into trisaccharide repeating units having the sequence ->3)-alpha-D-Fuc4NAc-(1->4)-beta-D-ManNAcA-(1->4)-alpha-D-GlcNAc-(1->	-, 719706