SLC3: The heavy subunits of the heteromeric amino acid transporters
Human Gene Name	Protein Name	Aliases	Predominant Substrates	Transport type /Coupling ions ^*)	Tissue distribution and cellular/ subcellular expression		Link to disease ^#)	Human gene locus	Sequence Accession ID	Splice variants and their specific features
SLC3A1	rBAT	NBAT D2	Heterodimerizes with light subunit b^o,+AT (SLC7A9): amino acid transport system b^o,+	E (see details in SLC7 table)	Epithelial cells in kidney and small intestine > liver, pancreas. In epithelial cells, apical plasma membrane		Classic Cystinuria type I^G	2p16.3-p21	NM_000341
SLC3A2	4F2hc	CD98hc	Amino acid transport systems L, y^+L, xc^- and asc with light subunits SLC7A5-8 and SLC7A10-11	E (see details in SLC7 table)	Ubiquitous. In epithelial cells, basolateral plasma membrane			11q13	NM_002394
*) E: Exchanger						#) G: Genetic defect

References:

Original version of the SLC table:

Palacin M, Kanai Y. The ancillary proteins of HATs: SLC3 family of amino acid transporters. Pflugers Arch. 2004 Feb;447(5):490-4