Involved in O antigen modification. Involved in the translocation of bactoprenol-linked glucose across the cytoplasmic membrane (By similarity). 120 MLKLFAKYTSIGVLNTLIHWGVFAFCVYGMHTHQALANFSGFVIAVSFSFYANARFTFNATTTTLRYMMYVGFMGTLSAVVGWMADQCSLPPLITLITFSAISLVCGFIYSRFIVFRDIR gtrA Bactoprenol-linked glucose translocase GTRA_BPP22