Q8TCC7 (S22A8_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 29, 2013.
Version 89.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Solute carrier family 22 member 8 Alternative name(s): Organic anion transporter 3 Short name=hOAT3 | ||||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 542 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Plays an important role in the excretion/detoxification of endogenous and exogenous organic anions, especially from the brain and kidney. Involved in the transport basolateral of steviol, fexofenadine. Transports benzylpenicillin (PCG), estrone-3-sulfate (E1S), cimetidine (CMD), 2,4-dichloro-phenoxyacetate (2,4-D), p-amino-hippurate (PAH), acyclovir (ACV) and ochratoxin (OTA). Ref.8 Ref.9 Ref.10 Ref.11 |
| Subcellular location | Basolateral cell membrane; Multi-pass membrane protein Potential. Note: Localizes on the brush border membrane of the choroid epithelial cells. Localizes to the basolateral membrane of the proximal tubular cells. Localizes on the abluminal and possibly, luminal membrane of the brain capillary endothelial cells (BCEC) By similarity. Ref.7 |
| Tissue specificity | Expressed in kidney. Ref.7 |
| Sequence similarities | Belongs to the major facilitator (TC 2.A.1) superfamily. Organic cation transporter (TC 2.A.1.19) family. [View classification] |
| Sequence caution | The sequence AAD19357.1 differs from that shown. Reason: Frameshift at several positions. The sequence BAD92929.1 differs from that shown. Reason: Erroneous initiation. |
Ontologies
Alternative products
| This entry describes 5 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q8TCC7-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q8TCC7-2) The sequence of this isoform differs from the canonical sequence as follows: 510-510: W → WSVTASGPPR | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 5 (identifier: Q8TCC7-5) The sequence of this isoform differs from the canonical sequence as follows: 1-123: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 3 (identifier: Q8TCC7-3) The sequence of this isoform differs from the canonical sequence as follows: 1-345: Missing. 406-455: DLQTVRTVLA...MGVSNLWTRV → GERLGLPQNP...SGAQGLSSRK 456-542: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 4 (identifier: Q8TCC7-4) The sequence of this isoform differs from the canonical sequence as follows: 1-91: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 542 | 542 | Solute carrier family 22 member 8 | PRO_0000273439 | |||||
Regions | |||||||||
| Topological domain | 1 – 9 | 9 | Cytoplasmic Potential | ||||||
| Transmembrane | 10 – 30 | 21 | Helical; Potential | ||||||
| Topological domain | 31 – 123 | 93 | Extracellular Potential | ||||||
| Transmembrane | 124 – 144 | 21 | Helical; Potential | ||||||
| Topological domain | 145 – 154 | 10 | Cytoplasmic Potential | ||||||
| Transmembrane | 155 – 175 | 21 | Helical; Potential | ||||||
| Topological domain | 176 | 1 | Extracellular Potential | ||||||
| Transmembrane | 177 – 197 | 21 | Helical; Potential | ||||||
| Topological domain | 198 – 212 | 15 | Cytoplasmic Potential | ||||||
| Transmembrane | 213 – 233 | 21 | Helical; Potential | ||||||
| Topological domain | 234 – 236 | 3 | Extracellular Potential | ||||||
| Transmembrane | 237 – 257 | 21 | Helical; Potential | ||||||
| Topological domain | 258 – 327 | 70 | Cytoplasmic Potential | ||||||
| Transmembrane | 328 – 348 | 21 | Helical; Potential | ||||||
| Topological domain | 349 – 354 | 6 | Extracellular Potential | ||||||
| Transmembrane | 355 – 375 | 21 | Helical; Potential | ||||||
| Topological domain | 376 – 386 | 11 | Cytoplasmic Potential | ||||||
| Transmembrane | 387 – 407 | 21 | Helical; Potential | ||||||
| Topological domain | 408 – 411 | 4 | Extracellular Potential | ||||||
| Transmembrane | 412 – 432 | 21 | Helical; Potential | ||||||
| Topological domain | 433 – 471 | 39 | Cytoplasmic Potential | ||||||
| Transmembrane | 472 – 492 | 21 | Helical; Potential | ||||||
| Topological domain | 493 – 542 | 50 | Extracellular Potential | ||||||
Amino acid modifications | |||||||||
| Glycosylation | 86 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 102 | 1 | N-linked (GlcNAc...) Potential | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 345 | 345 | Missing in isoform 3. | VSP_022562 | |||||
| Alternative sequence | 1 – 123 | 123 | Missing in isoform 5. | VSP_045824 | |||||
| Alternative sequence | 1 – 91 | 91 | Missing in isoform 4. | VSP_045272 | |||||
| Alternative sequence | 406 – 455 | 50 | DLQTV…LWTRV → GERLGLPQNPLEEAARLGAR DFTAGSASKSLCYLEQVPAL SGAQGLSSRK in isoform 3. | VSP_022563 | |||||
| Alternative sequence | 456 – 542 | 87 | Missing in isoform 3. | VSP_022564 | |||||
| Alternative sequence | 510 | 1 | W → WSVTASGPPR in isoform 2. | VSP_022565 | |||||
| Natural variant | 129 | 1 | F → L. Corresponds to variant rs11568479 [ dbSNP | Ensembl ]. | VAR_030146 | |||||
| Natural variant | 149 | 1 | R → S Complete loss of function. Ref.13 Corresponds to variant rs45566039 [ dbSNP | Ensembl ]. | VAR_030147 | |||||
| Natural variant | 260 | 1 | I → R Complete loss of function. Ref.13 Corresponds to variant rs11568493 [ dbSNP | Ensembl ]. | VAR_030148 | |||||
| Natural variant | 277 | 1 | R → W Reduced function. Ref.13 Corresponds to variant rs11568492 [ dbSNP | Ensembl ]. | VAR_030149 | |||||
| Natural variant | 281 | 1 | V → A in 6% of African-Americans. Corresponds to variant rs45438191 [ dbSNP | Ensembl ]. | VAR_030150 | |||||
| Natural variant | 305 | 1 | I → F in 3.5% of Asian-American; reduced function. Ref.13 Corresponds to variant rs11568482 [ dbSNP | Ensembl ]. | VAR_030151 | |||||
| Natural variant | 389 | 1 | A → V. Ref.12 | VAR_030152 | |||||
| Natural variant | 448 | 1 | V → I. Corresponds to variant rs11568486 [ dbSNP | Ensembl ]. | VAR_030153 | |||||
Experimental info | |||||||||
| Sequence conflict | 150 | 1 | Missing in AAD19357. Ref.1 | ||||||
| Sequence conflict | 151 | 1 | P → T in AAD19357. Ref.1 | ||||||
| Sequence conflict | 271 | 1 | K → E in BAB47393. Ref.2 | ||||||
| Sequence conflict | 286 | 1 | Missing in AAD19357. Ref.1 | ||||||
| Sequence conflict | 411 | 1 | R → E in AAD19357. Ref.1 | ||||||
| Sequence conflict | 478 – 480 | 3 | YGI → FTGS in AAD19357. Ref.1 | ||||||
| Sequence conflict | 526 | 1 | A → T in BAG60589. Ref.3 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Molecular cloning and characterization of two novel human renal organic anion transporters (hOAT1 and hOAT3)." Race J.E., Grassl S.M., Williams W.J., Holtzman E.J. Biochem. Biophys. Res. Commun. 255:508-514(1999) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2). Tissue: Kidney. |
| [2] | "Molecular cloning and characterization of human organic anion transporter 3." Cha S., Sekine T., Kanai Y., Endou H. Submitted (MAY-2000) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). Tissue: Kidney. |
| [3] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 4). Tissue: Kidney. |
| [4] | Totoki Y., Toyoda A., Takeda T., Sakaki Y., Tanaka A., Yokoyama S., Ohara O., Nagase T., Kikuno R.F. Submitted (MAR-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 3). Tissue: Brain. |
| [5] | "Human chromosome 11 DNA sequence and analysis including novel gene identification." Taylor T.D., Noguchi H., Totoki Y., Toyoda A., Kuroki Y., Dewar K., Lloyd C., Itoh T., Takeda T., Kim D.-W., She X., Barlow K.F., Bloom T., Bruford E., Chang J.L., Cuomo C.A., Eichler E., FitzGerald M.G. Sakaki Y.Nature 440:497-500(2006) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [6] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1). Tissue: Kidney. |
| [7] | "Gene expression levels and immunolocalization of organic ion transporters in the human kidney." Motohashi H., Sakurai Y., Saito H., Masuda S., Urakami Y., Goto M., Fukatsu A., Ogawa O., Inui K. J. Am. Soc. Nephrol. 13:866-874(2002) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION, TISSUE SPECIFICITY. |
| [8] | "Human organic anion transporter 3 (hOAT3) can operate as an exchanger and mediate secretory urate flux." Bakhiya A., Bahn A., Burckhardt G., Wolff N. Cell. Physiol. Biochem. 13:249-256(2003) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| [9] | "Transport of the natural sweetener stevioside and its aglycone steviol by human organic anion transporter (hOAT1; SLC22A6) and hOAT3 (SLC22A8)." Srimaroeng C., Chatsudthipong V., Aslamkhan A.G., Pritchard J.B. J. Pharmacol. Exp. Ther. 313:621-628(2005) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| [10] | "Molecular cloning and functional analyses of OAT1 and OAT3 from cynomolgus monkey kidney." Tahara H., Shono M., Kusuhara H., Kinoshita H., Fuse E., Takadate A., Otagiri M., Sugiyama Y. Pharm. Res. 22:647-660(2005) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| [11] | "Inhibition of oat3-mediated renal uptake as a mechanism for drug-drug interaction between fexofenadine and probenecid." Tahara H., Kusuhara H., Maeda K., Koepsell H., Fuse E., Sugiyama Y. Drug Metab. Dispos. 34:743-747(2006) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| [12] | "Polymorphisms of OATP-C (SLC21A6) and OAT3 (SLC22A8) genes: consequences for pravastatin pharmacokinetics." Nishizato Y., Ieiri I., Suzuki H., Kimura M., Kawabata K., Hirota T., Takane H., Irie S., Kusuhara H., Urasaki Y., Urae A., Higuchi S., Otsubo K., Sugiyama Y. Clin. Pharmacol. Ther. 73:554-565(2003) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANT VAL-389. |
| [13] | "The human organic anion transporter 3 (OAT3; SLC22A8): genetic variation and functional genomics." Erdman A.R., Mangravite L.M., Urban T.J., Lagpacan L.L., Castro R.A., de la Cruz M., Chan W., Huang C.C., Johns S.J., Kawamoto M., Stryke D., Taylor T.R., Carlson E.J., Ferrin T.E., Brett C.M., Burchard E.G., Giacomini K.M. Am. J. Physiol. 290:F905-F912(2006) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANTS SER-149; ARG-260; TRP-277 AND PHE-305, CHARACTERIZATION OF VARIANTS SER-149; ARG-260; TRP-277 AND PHE-305. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF097491 mRNA. Translation: AAD19357.1. Frameshift. AB042505 mRNA. Translation: BAB47393.1. AK298341 mRNA. Translation: BAG60589.1. AB209692 mRNA. Translation: BAD92929.1. Different initiation. AP001858 Genomic DNA. No translation available. BC022387 mRNA. Translation: AAH22387.1. |
| IPI | IPI00163456. IPI00827526. IPI00827863. IPI00975555. IPI00982691. |
| RefSeq | NP_001171661.1. NM_001184732.1. NP_001171662.1. NM_001184733.1. NP_001171665.1. NM_001184736.1. NP_004245.2. NM_004254.3. |
| UniGene | Hs.266223. |
3D structure databases | |
| ProteinModelPortal | Q8TCC7. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q8TCC7. 1 interaction. |
| STRING | 9606.ENSP00000337335. |
Polymorphism databases | |
| DMDM | 74730587. |
Proteomic databases | |
| PaxDb | Q8TCC7. |
| PRIDE | Q8TCC7. |
Protocols and materials databases | |
| DNASU | 9376. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000336232; ENSP00000337335; ENSG00000149452. ENST00000430500; ENSP00000398548; ENSG00000149452. ENST00000535878; ENSP00000443368; ENSG00000149452. ENST00000545207; ENSP00000441658; ENSG00000149452. |
| GeneID | 9376. |
| KEGG | hsa:9376. |
| UCSC | uc001nwo.3. human. uc001nwp.2. human. |
Organism-specific databases | |
| CTD | 9376. |
| GeneCards | GC11M062760. |
| HGNC | HGNC:10972. SLC22A8. |
| HPA | HPA044174. |
| MIM | 607581. gene. |
| neXtProt | NX_Q8TCC7. |
| PharmGKB | PA389. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | COG0477. |
| HOGENOM | HOG000234569. |
| HOVERGEN | HBG108433. |
| KO | K08205. |
| OMA | MANHNLL. |
| OrthoDB | EOG418BPG. |
Enzyme and pathway databases | |
| Reactome | REACT_15518. Transmembrane transport of small molecules. |
Gene expression databases | |
| ArrayExpress | Q8TCC7. |
| Bgee | Q8TCC7. |
| CleanEx | HS_SLC22A8. |
| Genevestigator | Q8TCC7. |
Family and domain databases | |
| InterPro | IPR020846. MFS_dom. IPR016196. MFS_dom_general_subst_transpt. IPR004749. Orgcat_transp. IPR005828. Sub_transporter. IPR005829. Sugar_transporter_CS. [Graphical view] |
| Pfam | PF00083. Sugar_tr. 1 hit. [Graphical view] |
| SUPFAM | SSF103473. MFS_gen_substrate_transporter. 1 hit. |
| TIGRFAMs | TIGR00898. 2A0119. 1 hit. |
| PROSITE | PS50850. MFS. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChEMBL | CHEMBL1641348. |
| GenomeRNAi | 9376. |
| NextBio | 35126. |
| SOURCE | Search... |
Entry information
| Entry name | S22A8_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q8TCC7 Secondary accession number(s): B4DPH7 Q96TC1 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 11 Human chromosome 11: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
