>tr|D2AF72|D2AF72_SHIF2 Ascorbate-specific phosphotransferase enzyme IIB component OS=Shigella flexneri serotype X GN=ulaB MTVRILAVCGNGQGSSMIMKMKVDQFLTQSNIDHTVNSCAVGEYKSELSGADIIIASTHI AGEITVTGNKYVVGVRNMLSPADFGPKLLEVIKAHFPQDVK