// Workers AI · dad joke modeWhat did SLC22A8 say to its gene friend? You're a transport-ative companion.

SLC22A8
Identifiers
Aliases	SLC22A8, OAT3, solute carrier family 22 member 8
External IDs	OMIM: 607581; MGI: 1336187; HomoloGene: 20901; GeneCards: SLC22A8; OMA:SLC22A8 - orthologs
Gene location (Human) Chr. Chromosome 11 (human) Band 11q12.3 Start 62,989,154 bp End 63,015,841 bp
Gene location (Mouse) Chr. Chromosome 19 (mouse) Band 19|19 A Start 8,568,618 bp End 8,589,199 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in retinal pigment epithelium kidney tubule metanephric glomerulus human kidney testicle renal medulla vena cava vasculature of head gonad Epithelium of choroid plexus Top expressed in right kidney human kidney retinal pigment epithelium optic nerve proximal tubule ciliary body olfactory tubercle lumbar subsegment of spinal cord pontine nuclei Epithelium of choroid plexus More reference expression data BioGPS More reference expression data
Gene ontology Molecular function sodium-independent organic anion transmembrane transporter activity transmembrane transporter activity inorganic anion exchanger activity transporter activity Cellular component integral component of membrane plasma membrane basolateral plasma membrane integral component of plasma membrane extracellular exosome membrane Biological process sodium-independent organic anion transport ion transport response to toxic substance transmembrane transport anion transmembrane transport inorganic anion transport transport Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 9376 19879 Ensembl ENSG00000149452 ENSMUSG00000063796 UniProt Q8TCC7 O88909 RefSeq (mRNA) NM_001184732 NM_001184733 NM_001184736 NM_004254 NM_001164634 NM_001164635 NM_031194 RefSeq (protein) NP_001171661 NP_001171662 NP_001171665 NP_004245 NP_001158106 NP_001158107 NP_112471 Location (UCSC) Chr 11: 62.99 – 63.02 Mb Chr 19: 8.57 – 8.59 Mb PubMed search
Wikidata
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Solute carrier family 22 member 8, or organic anion transporter 3 (OAT3), is a protein that in humans is encoded by the SLC22A8 gene.

Function

OAT3 is involved in the transport and excretion of organic ions some of which are drugs (e.g., penicillin G (benzylpenicillin), methotrexate (MTX), indomethacin (an NSAID), and ciprofloxacin (a fluoroquinolone antibiotic)) and some of which are pure toxicants. SLC22A8 (OAT3) is indirectly dependent on the inward sodium gradient, which is a driving force for reentry of dicarboxylates into the cytosol. Dicarboxylates, such as alpha-ketoglutarate generated within the cell, or recycled from the extracellular space, are used as exchange substrates to fuel the influx of organic anions against their concentration gradient. The encoded protein is an integral membrane protein and appears to be localized to the basolateral membrane of renal proximal tubule cells.

Further reading

• Babu E, Takeda M, Narikawa S, Kobayashi Y, Yamamoto T, Cha SH, Sekine T, Sakthisekaran D, Endou H (2002). "Human Organic Anion Transporters Mediate the Transport of Tetracycline". The Japanese Journal of Pharmacology. 88 (1): 69–76. doi:10.1254/jjp.88.69. PMID 11855680.
• Motohashi H, Sakurai Y, Saito H, Masuda S, Urakami Y, Goto M, Fukatsu A, Ogawa O, Inui K (2002). "Gene expression levels and immunolocalization of organic ion transporters in the human kidney". Journal of the American Society of Nephrology. 13 (4): 866–74. doi:10.1681/ASN.V134866. PMID 11912245.
• Nishizato Y, Ieiri I, Suzuki H, Kimura M, Kawabata K, Hirota T, Takane H, Irie S, et al. (2003). "Polymorphisms of OATP-C (SLC21A6) and OAT3 (SLC22A8) genes: Consequences for pravastatin pharmacokinetics". Clinical Pharmacology & Therapeutics. 73 (6): 554–65. doi:10.1016/S0009-9236(03)00060-2. PMID 12811365. S2CID 6570648.
• Bakhiya A, Bahn A, Burckhardt G, Wolff N (2003). "Human Organic Anion Transporter 3 (hOAT3) can Operate as an Exchanger and Mediate Secretory Urate Flux". Cellular Physiology and Biochemistry. 13 (5): 249–56. doi:10.1159/000074539. PMID 14586168. S2CID 24494954.
• Sakurai Y, Motohashi H, Ueo H, Masuda S, Saito H, Okuda M, Mori N, Matsuura M, et al. (2004). "Expression Levels of Renal Organic Anion Transporters (OATs) and Their Correlation with Anionic Drug Excretion in Patients with Renal Diseases". Pharmaceutical Research. 21 (1): 61–7. doi:10.1023/B:PHAM.0000012153.71993.cb. hdl:2433/144752. PMID 14984259. S2CID 28592120.
• Srimaroeng C, Chatsudthipong V, Aslamkhan AG, Pritchard JB (2004). "Transport of the Natural Sweetener Stevioside and Its Aglycone Steviol by Human Organic Anion Transporter (hOAT1; SLC22A6) and hOAT3 (SLC22A8)". Journal of Pharmacology and Experimental Therapeutics. 313 (2): 621–8. doi:10.1124/jpet.104.080366. PMID 15644426. S2CID 15017941.
• Tahara H, Shono M, Kusuhara H, Kinoshita H, Fuse E, Takadate A, Otagiri M, Sugiyama Y (2005). "Molecular Cloning and Functional Analyses of OAT1 and OAT3 from Cynomolgus Monkey Kidney". Pharmaceutical Research. 22 (4): 647–60. doi:10.1007/s11095-005-2503-0. PMID 15846473. S2CID 26613337.
• Erdman AR, Mangravite LM, Urban TJ, Lagpacan LL, Castro RA, de la Cruz M, Chan W, Huang CC, et al. (2005). "The human organic anion transporter 3 (OAT3; SLC22A8): Genetic variation and functional genomics". AJP: Renal Physiology. 290 (4): F905–12. doi:10.1152/ajprenal.00272.2005. PMID 16291576. S2CID 858402.
• Tahara H, Kusuhara H, Maeda K, Koepsell H, Fuse E, Sugiyama Y (2006). "Inhibition of Oat3-Mediated Renal Uptake As a Mechanism for Drug-Drug Interaction Between Fexofenadine and Probenecid". Drug Metabolism and Disposition. 34 (5): 743–7. doi:10.1124/dmd.105.008375. PMID 16455804. S2CID 7695728.
• Bhatnagar V, Xu G, Hamilton BA, Truong DM, Eraly SA, Wu W, Nigam SK (2006). "Analyses of 5′ regulatory region polymorphisms in human SLC22A6 (OAT1) and SLC22A8 (OAT3)". Journal of Human Genetics. 51 (6): 575–80. doi:10.1007/s10038-006-0398-1. PMID 16648942.
• Kikuchi R, Kusuhara H, Hattori N, Shiota K, Kim I, Gonzalez FJ, Sugiyama Y (2006). "Regulation of the Expression of Human Organic Anion Transporter 3 by Hepatocyte Nuclear Factor 1 /beta and DNA Methylation". Molecular Pharmacology. 70 (3): 887–96. doi:10.1124/mol.106.025494. PMID 16793932. S2CID 2993122.
• Mizuno N, Takahashi T, Iwase Y, Kusuhara H, Niwa T, Sugiyama Y (2007). "Human Organic Anion Transporters 1 (hOAT1/SLC22A6) and 3 (hOAT3/SLC22A8) Transport Edaravone (MCI-186; 3-methyl-1-phenyl-2-pyrazolin-5-one) and Its Sulfate Conjugate". Drug Metabolism and Disposition. 35 (8): 1429–34. doi:10.1124/dmd.106.013912. PMID 17502342. S2CID 13006597.
• Matsumoto S, Yoshida K, Ishiguro N, Maeda T, Tamai I (2007). "Involvement of Rat and Human Organic Anion Transporter 3 in the Renal Tubular Secretion of Topotecan [(S)-9-Dimethylaminomethyl-10-hydroxy-camptothecin hydrochloride]". Journal of Pharmacology and Experimental Therapeutics. 322 (3): 1246–52. doi:10.1124/jpet.107.123323. PMID 17556638. S2CID 43487664.
• Nozaki Y, Kusuhara H, Kondo T, Iwaki M, Shiroyanagi Y, Nakayama H, Horita S, Nakazawa H, et al. (2007). "Species Difference in the Inhibitory Effect of Nonsteroidal Anti-Inflammatory Drugs on the Uptake of Methotrexate by Human Kidney Slices". Journal of Pharmacology and Experimental Therapeutics. 322 (3): 1162–70. doi:10.1124/jpet.107.121491. PMID 17578901. S2CID 20950205.
• Vanwert AL, Bailey RM, Sweet DH (2007). "Organic anion transporter 3 (Oat3/Slc22a8) knockout mice exhibit altered clearance and distribution of penicillin G". AJP: Renal Physiology. 293 (4): F1332–41. doi:10.1152/ajprenal.00319.2007. PMC 2820253. PMID 17686950.
• VanWert AL, Sweet DH (2007). "Impaired Clearance of Methotrexate in Organic Anion Transporter 3 (Slc22a8) Knockout Mice: A Gender Specific Impact of Reduced Folates". Pharmaceutical Research. 25 (2): 453–62. doi:10.1007/s11095-007-9407-0. PMC 2820254. PMID 17660957.
• Windass AS, Lowes S, Wang Y, Brown CD (2007). "The Contribution of Organic Anion Transporters OAT1 and OAT3 to the Renal Uptake of Rosuvastatin". Journal of Pharmacology and Experimental Therapeutics. 322 (3): 1221–7. doi:10.1124/jpet.107.125831. PMID 17585018. S2CID 24479885.