The WecG member of this family, believed to be UDP-N-acetyl-D-mannosaminuronic acid transferase, plays a role in enterobacterial common antigen (eca) synthesis in Escherichia coli. Another family member, the Bacillus subtilis TagA protein, is involved in the biosynthesis of the cell wall polymer poly(glycerol phosphate). The third family member, CpsF, CMP-N-acetylneuraminic acid synthetase has a role in the capsular polysaccharide biosynthesis pathway. Also included in this group is Xanthomonas campestris pv. campestris GumM, a glycosyltransferase participating in the biosynthesis of the exopolysaccharide xanthan [1, 2, 3, 4, 5, 6, 7].

1: Characterization of cpsF and its product CMP-N-acetylneuraminic acid synthetase, a group B streptococcal enzyme that can function in K1 capsular polysaccharide biosynthesis in Escherichia coli. Haft RF, Wessels MR, Mebane MF, Conaty N, Rubens CE; Mol Microbiol. 1996;19:555-563. PMID:8830246

2: Identification of the structural gene for the TDP-Fuc4NAc:lipid II Fuc4NAc transferase involved in synthesis of enterobacterial common antigen in Escherichia coli K-12. Rahman A, Barr K, Rick PD; J Bacteriol 2001;183:6509-6516. PMID:11673418

3: Identification and biosynthesis of cyclic enterobacterial common antigen in Escherichia coli. Erbel PJ, Barr K, Gao N, Gerwig GJ, Rick PD, Gardner KH; J Bacteriol. 2003;185:1995-2004. PMID:12618464

4: Localization and interactions of teichoic acid synthetic enzymes in Bacillus subtilis. Formstone A, Carballido-Lopez R, Noirot P, Errington J, Scheffers DJ; J Bacteriol. 2008;190:1812-1821. PMID:18156271

5: Acceptor substrate selectivity and kinetic mechanism of Bacillus subtilis TagA. Zhang YH, Ginsberg C, Yuan Y, Walker S; Biochemistry. 2006;45:10895-10904. PMID:16953575

6: Characterization of an Escherichia coli rff mutant defective in transfer of N-acetylmannosaminuronic acid (ManNAcA) from UDP-ManNAcA to a lipid-linked intermediate involved in enterobacterial common antigen synthesis. Barr K, Ward S, Meier-Dieter U, Mayer H, Rick PD; J Bacteriol. 1988;170:228-233. PMID:3275612

7: Xanthomonas campestris pv. campestris gum mutants: effects on xanthan biosynthesis and plant virulence. Katzen F, Ferreiro DU, Oddo CG, Ielmini MV, Becker A, Puhler A, Ielpi L; J Bacteriol. 1998;180:1607-1617. PMID:9537354