>tr|A0A023KEK7|A0A023KEK7_ECOLX PTS system L-ascorbate-specific transporter subunit IIB OS=Escherichia coli GN=ulaB MTVRILAVCGNGQGSSMIMKMKVDQFLTQSNIDHTVNSCAVGEYKSELSGADIIIASTHI AGEITVTGNKYVVGVRNMLSPADFGPKLLEVIKAHFPQDVK