Probably part of an ABC transporter complex that could be involved in peptide import. The complex is composed of two ATP-binding proteins (BruAb2_1033 and BruAb2_1034), two transmembrane proteins (BruAb2_1031 and BruAb2_1032) and a solute-binding protein (BruAb2_1030). Belongs to the bacterial solute-binding protein 5 family.