Catalyzes the transfer of the GlcNAc-1-phosphate moiety from UDP-GlcNAc onto the carrier lipid undecaprenyl phosphate (C55-P), yielding GlcNAc-pyrophosphoryl-undecaprenyl (GlcNAc-PP-C55). It is the first lipid-linked intermediate involved in enterobacterial common antigen (ECA) synthesis, and an acceptor for the addition of subsequent sugars to complete the biosynthesis of O-antigen lipopolysaccharide (LPS) in many E.coli O types. The apparent affinity of WecA for the polyisoprenyl phosphate substrates increases with the polyisoprenyl chain length. WecA is unable to utilize dolichyl phosphate (Dol-P).

Belongs to the glycosyltransferase 4 family. WecA subfamily.

367 amino acids

MNLLTVSTDLISIFLFTTLFLFFARKVAKKVGLVDKPNFRKRHQGLIPLVGGISVYAGICFTFGIVDYYIPHASLYLACAGVLVFIGALDDRFDISVKIRATIQAAVGIVMMVFGKLYLSSLGYIFGSWEMVLGPFGYFLTLFAVWAAINAFNMVDGIDGLLGGLSCVSFAAIGMILWFDGQTSLAIWCFAMIAAILPYIMLNLGILGRRYKVFMGDAGSTLIGFTVIWILLETTQGKTHPISPVTALWIIAIPLMDMVAIMYRRLRKGMSPFSPDRQHIHHLIMRAGFTSRQAFVLITLAAALLASIGVLAEYSHFVPEWVMLVLFLLAFFLYGYCIKRAWKVARFIKRVKRRLRRNRGGSPNLTK

41 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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