Abstract
Vibrio cholerae O1 employs the ATP-binding cassette (ABC) transporter-dependent pathway for O antigen biosynthesis. Different from highly studied Klebsiella pneumoniae and Escherichia coli, it was reported that initial reaction of O antigen biosynthesis in V. cholerae O1 may be involved in WbeW protein, which is predicted to be a galactosyltransferase. In this work, we report expression and characterization of WbeW enzyme. WbeW was expressed as membrane-associated form in E. coli and it was obtained with high purity. The enzyme had a function of transferring Gal-1-P from UDP-Gal to Und-P, implying that initial glycan of O antigen in V. cholerae O1 can be composed of a Gal residue.
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Kim, C.S., Seo, J.H. & Cha, H.J. Functional characterization of Vibrio cholerae O1 WbeW enzyme responsible for initial reaction in O antigen biosynthesis. Biotechnol Bioproc E 20, 980–987 (2015). https://doi.org/10.1007/s12257-015-0677-9
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DOI: https://doi.org/10.1007/s12257-015-0677-9