UDP-N-acetylglucosamine--undecaprenyl-phosphate N-acetylglucosaminephosphotransferase (WecA) (WecA)

UDP-N-acetylglucosamine--undecaprenyl-phosphate N-acetylglucosaminephosphotransferase, commonly known as WecA, is an essential integral membrane enzyme in many bacteria (UniProt P0AFG6). It catalyzes the initial step in the biosynthesis of various cell envelope components, including the O-antigen of lipopolysaccharides and teichoic acids, by transferring a phospho-N-acetylglucosamine moiety from UDP-GlcNAc to the lipid carrier undecaprenyl phosphate (Price & Momany, 2005). Because this process is vital for maintaining bacterial cell wall integrity and viability, WecA is a significant target for the development of novel antibacterial agents (Al-Dabbagh et al., 2008). However, therapeutic development is complicated by the structural similarity between WecA and its eukaryotic counterpart, DPAGT1, which is involved in N-linked protein glycosylation. Inhibitors like tunicamycin demonstrate potent antibacterial activity but exhibit high toxicity in humans due to this lack of selectivity (Lehrer et al., 2007). Current research focuses on identifying narrow-spectrum or highly selective inhibitors that can bypass these safety concerns while effectively treating resistant bacterial infections.

Other names

WecATagOUDP-GlcNAc:undecaprenyl-phosphate GlcNAc-1-phosphate transferaseGlcNAc-P-P-undecaprenol synthetasePhospho-N-acetylglucosamine-transferase

Inhibition of the transfer of N-acetylglucosamine-1-phosphate to undecaprenyl phosphate, preventing the formation of essential lipid-linked precursors for the bacterial cell envelope (Price & Momany, 2005).