Colistin is Substrate of the Carnitine/Organic Cation Transporter 2 (OCTN2, SLC22A5)
نویسندگان
چکیده
منابع مشابه
Carnitine/organic cation transporter OCTN2 (Slc22a5) is responsible for renal secretion of cephaloridine in mice.
Carnitine/organic cation transporter (OCTN) 2 (SLC22A5) plays a pivotal role in renal tubular reabsorption of carnitine, a vitamin-like compound, on apical membranes of proximal tubules, but its role in relation to therapeutic drugs remains to be clarified. The purpose of the present study was to elucidate the involvement of OCTN2 in renal disposition of a beta-lactam antibiotic, cephaloridine ...
متن کاملStudies on functional sites of organic cation/carnitine transporter OCTN2 (SLC22A5) using a Ser467Cys mutant protein.
The organic cation/carnitine transporter OCTN2 mediates transport of carnitine and organic cations in Na(+)-dependent and Na(+)-independent manners, respectively. However, the mechanism of molecular recognition of different substrates has not been clarified yet. We previously found a single amino acid change in OCTN2, Ser467Cys (S467C), in the Japanese population and observed a decreased carnit...
متن کاملFunctional regions of organic cation/carnitine transporter OCTN2 (SLC22A5): roles in carnitine recognition.
The organic cation/carnitine transporter OCTN2 transports carnitine in a sodium-dependent manner, whereas it transports organic cations sodium-independently. To elucidate the functional domain in OCTN2, we constructed chimeric proteins of human OCTN2 (hOCTN2) and mouse OCTN3 (mOCTN3) and introduced mutations at several amino acids conserved among human, rat and mouse OCTN2. We found that transm...
متن کاملExpression, localization, and function of the carnitine transporter octn2 (slc22a5) in human placenta.
L-carnitine is assumed to play an important role in fetal development, and there is evidence that carnitine is transported across the placenta. The protein involved in this transfer, however, has not been identified on a molecular level. We therefore characterized localization and function of the carnitine transporter OCTN2 in human placenta. Significant expression of OCTN2 mRNA was detected in...
متن کاملFunctional characteristics and tissue distribution pattern of organic cation transporter 2 (OCTN2), an organic cation/carnitine transporter.
We have demonstrated in the present study that novel organic cation transporter (OCTN) 2 is a transporter for organic cations as well as carnitine. OCTN2 transports organic cations without involving Na(+), but it transports carnitine only in the presence of Na(+). The ability to transport organic cations and carnitine is demonstrable with human, rat, and mouse OCTN2s. Na(+) does not influence t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Drug Metabolism and Disposition
سال: 2017
ISSN: 0090-9556,1521-009X
DOI: 10.1124/dmd.117.077248