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The SLCO (former SLC21) superfamily of transporters

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Hagenbuch, Bruno, Stieger, Bruno·2013·Molecular Aspects of Medicine

Abstract

The members of the organic anion transporting polypeptide superfamily (OATPs) are classified within the SLCO solute carrier family. All functionally well characterized members are predicted to have 12 transmembrane domains and are sodium-independent transport systems that mediate the transport of a broad range of endo- as well as xenobiotics. Substrates are mainly amphipathic organic anions with a molecular weight of more than 300 Da, but some of the known transported substrates are also neutral or even positively charged. Among the well characterized substrates are numerous drugs including statins, angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, antibiotics, antihistaminics, antihypertensives and anticancer drugs. Based on their amino acid sequence identities, the different OATPs cluster into families (in general with more than 40% amino acid sequence identity) and subfamilies (more than 60% amino acid identity). With the sequencing of genomes from different species and the computerized prediction of encoded proteins more than 300 OATPs can be found in the databases, however only a fraction of them have been identified in humans, rodents, and some additional species important for pharmaceutical research like the rhesus monkey (Macaca mulatta), the dog (Canis lupus familiaris) and the pig (Sus scrofa). These OATPs form 6 families (OATP1–OATP6) and 13 subfamilies. In this review we try to summarize what is currently known about OATPs with respect to endogenous substrates, tissue distribution, transport mechanisms, regulation of expression, structure-function relationship and mutations and polymorphisms.

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Metadata

Authors
Hagenbuch, B., & Stieger, B.
Venue
Molecular Aspects of Medicine
Publisher
Elsevier BV
Published
2013-04
Volume
34
Issue
2-3
Pages
396-412
ISSN
0098-2997 (ISSN-L)
OpenAlex
W1973508181
Cited by
385
References
150
FWCI
15.02
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The SLCO (former SLC21) superfamily of transporters. https://app.cochat.ai/papers/10.1016/j.mam.2012.10.009
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Hagenbuch, B., & Stieger, B. (2013). The SLCO (former SLC21) superfamily of transporters. Molecular Aspects of Medicine. https://doi.org/10.1016/j.mam.2012.10.009

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