The SLC6 family of proteins, which includes SLC6A18, acts as specific transporters for neurotransmitters, amino acids, and osmolytes like betaine, taurine, and creatine. SLC6 proteins are sodium cotransporters that derive the energy for solute transport from the electrochemical gradient for sodium ions.
^ abHöglund PJ, Adzic D, Scicluna SJ, Lindblom J, Fredriksson R (October 2005). "The repertoire of solute carriers of family 6: identification of new human and rodent genes". Biochem. Biophys. Res. Commun. 336 (1): 175–89. doi:10.1016/j.bbrc.2005.08.048. PMID16125675.
Eslami B, Kinboshi M, Inoue S, et al. (2006). "A nonsense polymorphism (Y319X) of the solute carrier family 6 member 18 (SLC6A18) gene is not associated with hypertension and blood pressure in Japanese.". Tohoku J. Exp. Med. 208 (1): 25–31. doi:10.1620/tjem.208.25. PMID16340170.
Yoon YH, Seol SY, Heo J, et al. (2008). "Analysis of VNTRs in the solute carrier family 6, member 18 (SLC6A18) and lack of association with hypertension.". DNA Cell Biol. 27 (10): 559–67. doi:10.1089/dna.2008.0755. PMID18554081.