O-antigen chain terminator bifunctional methyltransferase/kinase WbdD

UniProtKB accession:  J7I4B7

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UniProtKB description:  Regulates the length of the LPS O-antigen polysaccharide chain (PubMed:15184370, PubMed:19734145, PubMed:21990359). Stops the polymerization of the chain by phosphorylating and then methylating the phosphate on the terminal sugar (PubMed:15184370, PubMed:21990359). This terminal modification is essential for export of the O-antigen across the inner membrane (PubMed:15184370). WbdD is also required for correct localization of the WbdA mannosyltransferase (PubMed:19734145, PubMed:25422321).