Isolation of a family of organic anion transporters from human liver and kidney

被引:159
作者
Sun, W [1 ]
Wu, RR [1 ]
van Poelje, PD [1 ]
Erion, MD [1 ]
机构
[1] Metabasis Therapeut Inc, San Diego, CA 92121 USA
关键词
organic anion; membrane transport; p-aminohippurate; liver transport; kidney transport;
D O I
10.1006/bbrc.2001.4774
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Five distinct organic anion transporter cDNAs, hOAT1-, were isolated from human liver and kidney. hOAT1, 2, and 3 are homologous to their respective rat orthologues OAT1-3, whereas hOAT4 and 5 are novel clones that have not been identified in other species. hOAT1- and hOAT3-transfected cells showed uptake of p-aminohippurate and fluorescein. Cells expressing hOAT2 showed uptake of p-aminohippurate, methotrexate, cAMP, and alpha -ketoglutarate. Northern blot analysis indicated differential tissue distribution for the transporter transcripts. These results indicate the existence of a family of organic anion transporting proteins in humans distinct from the oatp-like family of transporters. (C) 2001 Academic Press.
引用
收藏
页码:417 / 422
页数:6
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