Part of the ABC transporter complex SsuABC involved in aliphatic sulfonates import. Responsible for energy coupling to the transport system (Probable). Is also involved in taurine transport. Seems to not be involved in long chain aliphatic sulfonates transport (chain length of eight carbon atoms or more). ATP + H2O + aliphatic sulfonate-[sulfonate-binding protein]Side 1 = ADP + phosphate + aliphatic sulfonateSide 2 + [sulfonate-binding protein]Side 1. The complex is composed of two ATP-binding proteins (SsuB), two transmembrane proteins (SsuC) and a solute-binding protein (SsuA). Belongs to the ABC transporter superfamily. Aliphatic sulfonates importer (TC 3.A.1.17.2) family.