XCT is an alias for the gene, Solute carrier family 7 (anionic amino acid transporter light chain, xc- system), member 11, in humans. Other names include: Cystine/glutamate transporter; Calcium channel blocker resistance protein CCBR1; Solute carrier family 7 member 11; Amino acid transport system xc-; CCBR1. The encoded protein has an amino acid length of 501 and a mass of 55.4 kDa. Other isoforms may exist. XCT is a member of the Amino acid-polyamine-organocation (APC) superfamily, L-type amino acid transporter (LAT) (TC 2.A.3.8) family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.