General Information and Variability Data of DT
Gene Name SLCO4A1
Protein Name Organic anion transporting polypeptide 4A1
Synonyms Colon organic anion transporter; OATP-E; OATP-RP1; OATP4A1; OATPE; OATPRP1; Organic anion transporter polypeptide-related protein 1; Organic anion-transporting polypeptide E; POAT; SLC21A12; SLCO4A1; Sodium-independent organic anion transporter E; Solute carrier family 21 member 12; Solute carrier organic anion transporter family member 4A1
Gene ID
UniProt ID
DT Family Organo Anion Transporter (OAT) Family ;
Tissue Specificity Ubiquitous, with the exception of spleen andleukocytes.
Function This Na(+)-independent transporter mediates the transport of organic anions such as the thyroid hormones T3 (triiodo-L-thyronine), T4 (thyroxine) and rT3, and of estrone-3-sulfate and taurocholate.
Disease(s) Medical abortion [ICD-11: JA00.1]
Genetic Polymorphisms & Epigenetic Regulations of DT
Species-, Tissue- and Disease-specific Protein Abundances of DT
Exogenous Factor Altering DT Activity
Approved Drug(s) Transported by This DT Dinoprostone Drug Info Medical abortion [ICD-11: JA00.1] Approved [1]
Estrone sulfate Drug Info Menopausal symptoms [ICD-11: MF32] Approved [2]
Liothyronine Drug Info Hypothyroidism [ICD-11: 5A00.2] Approved [3]
Clinical Trial Drug(s) Transported by This DT Benzylpenicillin Drug Info Gram-positive bacteria infections [ICD-11: 1A00-1H0Z] Phase 4 [1]
Withdrawn, Discontinued or Preclinical Drug(s) Transported by This DT Taurocholic acid Drug Info Type 2 diabetes [ICD-11: 5A11] Terminated [4]
Endogenous Substrate(s) Eicosanoids; Thyroid hormones; Bile salts
Drug-DT Affinity Assessed by Cell Line
Drug(s) with Drug-DT Affinity Data Liothyronine Drug Info Oocytes-OATP4A1 Km = 0.9 microM [4]
Taurocholic acid Drug Info Oocytes-OATP4A1 Km = 14.9 microM [4]
1 Molecular identification and characterization of novel members of the human organic anion transporter (OATP) family. Biochem Biophys Res Commun. 2000 Jun 24;273(1):251-60.
2 Involvement of estrone-3-sulfate transporters in proliferation of hormone-dependent breast cancer cells. J Pharmacol Exp Ther. 2004 Dec;311(3):1032-7.
3 Isolation and characterization of a digoxin transporter and its rat homologue expressed in the kidney. Proc Natl Acad Sci U S A. 2004 Mar 9;101(10):3569-74.
4 Identification of thyroid hormone transporters in humans: different molecules are involved in a tissue-specific manner. Endocrinology. 2001 May;142(5):2005-12.

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