This family also includes the bacterial extracellular solute-binding protein family POTD/POTF.

1: The 2.3-A resolution structure of the maltose- or maltodextrin-binding protein, a primary receptor of bacterial active transport and chemotaxis. Spurlino JC, Lu GY, Quiocho FA; J Biol Chem 1991;266:5202-5219. PMID:2002054

2: Structure of Haemophilus influenzae Fe(+3)-binding protein reveals convergent evolution within a superfamily. Bruns CM, Nowalk AJ, Arvai AS, McTigue MA, Vaughan KG, Mietzner TA, McRee DE; Nat Struct Biol 1997;4:919-924. PMID:9360608

3: Crystal structure and mutational analysis of the Escherichia coli putrescine receptor. Structural basis for substrate specificity. Vassylyev DG, Tomitori H, Kashiwagi K, Morikawa K, Igarashi K; J Biol Chem 1998;273:17604-17609. PMID:9651355

4: Structural, functional, and evolutionary relationships among extracellular solute-binding receptors of bacteria. Tam R, Saier MH Jr; Microbiol Rev 1993;57:320-346. PMID:8336670