ORCTL2 (organic cation transporter-like protein 2), also known as HET, ITM, BWR1A, IMPT1, TSSC5, BWSCR1A, SLC22A1L, p45-BWR1A or SLC22A18, is a 424 amino acid multi-pass membrane protein that localizes at the apical membrane surface of renal proximal tubules. ORCTL2 is expressed at high levels in the kidney, liver, colon and in fetal renal proximal tubules and present at lower levels in heart, brain and lung. Belonging to the major facilitator superfamily, ORCTL2 may act as a transporter of organic cations based on a proton efflux antiport mechanism and may also play a role in the transport of chloroquine and quinidine-related compounds in kidney. Defects in ORCTL2 are associated with breast and lung cancer and are the cause of rhabdomyosarcoma type 1, a malignant tumor derived from striated muscle.
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Protein Aliases: Beckwith-Wiedemann syndrome chromosomal region 1 candidate gene A protein; Efflux transporter-like protein; Imprinted multi-membrane-spanning polyspecific transporter-related protein 1; ORCTL-2; Organic cation transporter-like protein 2; p45 Beckwith-Wiedemann region 1A; p45-Beckwith-Wiedemann region 1 A; p45-BWR1A; Solute carrier family 22 member 1-like; Solute carrier family 22 member 18; solute carrier family 22, member 18; Tumor-suppressing STF cDNA 5 protein; Tumor-suppressing subchromosomal transferable fragment candidate gene 5 protein
Gene Aliases: BWR1A; BWSCR1A; HET; IMPT1; ITM; ORCTL2; p45-BWR1A; SLC22A18; SLC22A1L; TSSC5
UniProt ID: (Human) Q96BI1
Entrez Gene ID: (Human) 5002