The
solute carrier (SLC) group of
membrane transport proteins include over 300 members organized into 52 families. Most members of the SLC group are located in the
cell membrane. The SLC gene nomenclature system was originally proposed by the HUGO Gene Nomenclature Committee (
HGNC) and is the basis for the official HGNC names of the genes that encode these transporters. A more general transmembrane transporter classification can be found in
TCDB database.