MNLKLVFESGDPVLIGVFVLMLLMSTVTWCLVVLRCIKLYRARKGNAAVKRHMRDTLSLNDAVEKVRAVDAPLSKLAQEALQSYRNYRRNEASELAQALPLNEYLVIQIRNSMAQIMRRFDYGMTALASIGATAPFIGLFGTVWGIYHALINIGQSGQMSIAAVAGPIGEALVATAAGLFVAIPAVLAYNFLNRGTKILTQDLDAMAHDLHVRLLNQKDS EXBB_NEIGO Biopolymer transport protein exbB 220 exbB Involved in the tonB-dependent energy-dependent transport of various receptor-bound substrates. Protects exbD from proteolytic degradation and functionally stabilizes tonB (By similarity).