SLC31: The copper transporter family
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
SLC31A1	hCtr1	hCtr1, Ctr1	Copper (I)	Energy-independent / potassium dependent	Ubiquitous mRNA expression; highest in liver, lowest in brain, and skeletal muscle. Protein localized to plasma membrane and intracellular vesicles of cultured cells	Unknown	9q31-q32	NM_001859	Unknown
SLC31A1P	pseudogene	CTR1psi					3q25-q26	AF238997
SLC31A2	hCtr2	hCtr2, Ctr2	Unknown	Unknown	Ubiquitous mRNA expression	Unknown	9q31-q32	NM_001860	Unknown

References:

Original version of the SLC table:

Petris MJ. The SLC31 (Ctr) copper transporter family. Pflugers Arch. 2004 Feb;447(5):752-5.