Protein
O-antigen chain terminator bifunctional methyltransferase/kinase WbdD
Function
Regulates the length of the LPS O-antigen polysaccharide chain. Stops the polymerization of the chain by phosphorylating and then methylating the phosphate on the terminal sugar. This terminal modification is essential for export of the O-antigen across the inner membrane. WbdD is also required for correct localization of the WbdA mannosyltransferase.
Similarity
Belongs to the WbdD family.
Sequence
MTKDLNTLVSELPEIYQTIFGHPEWDGDAARDCNQRLDLITEQYDNLSRALGRPLNVLDLGCAQGFFSLSLASKGATIVGIDFQQENINVCRALAEENPDFAAEFRVGRIEEVIAALEEGEFDLAIGLSVFHHIVHLHGIDEVKRLLSRLADVTQAVILELAVKEEPLYWGVSQPDDPRELIEQCAFYRLIGEFDTHLSPVPRPMYLVSNHRVLINDFNQPFQHWQNQPYAGAGLAHKRSRRYFFGEDYVCKFFYYDMPHGILTAEESQRNKHELHNEIKFLTQPPAGFDAPAVLAHGENAQSGWLVMEKLPGRLLSDMLAAGEEIDREKILGSLLRSLAALEKQGFWHDDVRPWNVMVDARQHARLIDFGSIVTTPQDCSWPTNLVQSFFVFVNELFAENKSWNGFWRSAPVHPFNLPQPWSNWLYAVWQEPVERWNFALLLALFEKKAKLPSAEQQRGATEQWIIAQETVLLELQSRGRNESAGSEALRGQIHTLEQQMAQLQSAQDAFVEKAQQPVEVSHELTWLGENMEQLAALLQTAQAHAQADVQPELPPETAELLQRLEAANREIHHLSNENQQLRQEIEKIHRSRSWRMTKGYRYLGLQIHLLRQYGFVQRCKHFIKRVLRFVFSFMRKHPQVKHTAVNGLHKLGLYQPAYRLYRRMNPLPHSQYQADAQILSQTELQVMHPELLPPEVYEIYLKLTKNK