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Organic zwitterions/cation transporters (OCTN) C

Unless otherwise stated all data on this page refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).


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Organic zwitterions/cation transporters (OCTN) function as organic cation uniporters, organic cation/proton exchangers or sodium/L-carnitine co-transporters.


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OCTN1 (Organic cation/carnitine transporter 1 / SLC22A4) C Show summary »

OCTN2 (Organic cation/carnitine transporter 2 / SLC22A5) C Show summary »

CT2 (Carnitine transporter 2 / SLC22A16) C Show summary »

Target Id 1024
Nomenclature Carnitine transporter 2
Systematic nomenclature SLC22A16
Common abbreviation CT2
Previous and unofficial names Fly-like putative transporter 2 | OCT6 | organic cation transporter OKB1 | Organic cation/carnitine transporter 6 | OAT6 | solute carrier family 22 (organic cation transporter), member 16 | FLIPT2 | solute carrier family 22 (organic cation/carnitine transporter), member 16 | solute carrier family 22 (organic cation transporter)
Genes SLC22A16 (Hs), Slc22a16 (Mm)
Ensembl ID ENSG00000004809 (Hs), ENSMUSG00000019834 (Mm)
UniProtKB AC Q86VW1 (Hs), Q497L8 (Mm)
Bioparadigms SLC Tables SLC22A16 (Hs)
Endogenous substrates
Stoichiometry Unknown


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Further reading

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NC-IUPHAR subcommittee and family contributors

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How to cite this family page

Database page citation (select format):

Concise Guide to PHARMACOLOGY citation:

Alexander SPH, Fabbro D, Kelly E, Mathie AA, Peters JA, Veale EL, Armstrong JF, Faccenda E, Harding SD, Davies JA et al. (2023) The Concise Guide to PHARMACOLOGY 2023/24: Transporters. Br J Pharmacol. 180 Suppl 2:S374-469.