Rat multidrug resistance protein 4 (Mrp4, Abcc4): molecular cloning, organ distribution, postnatal renal expression, and chemical inducibility

被引：54

作者：

Chen, C ^{[1
]}

Klaassen, CD ^{[1
]}

机构：

[1] Univ Kansas, Med Ctr, Dept Pharmacol Toxicol & Therapeut, Kansas City, KS 66160 USA

来源：

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 2004年 / 317卷 / 01期

关键词：

Mrp4; Abcc4; cloning rat ontopgeny; gender-difference; microsomal enzyme inducers; electrophile response element activators;

D O I：

10.1016/j.bbrc.2004.03.014

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：

In the present study, we report cloning of the rat Mrp4 cDNA. The cDNA is 4526 bp, containing a 3975 bp open reading frame. The deduced polypeptide has 1325 amino acids and is 83%,, and 91%, identical to human MRP4 and mouse Mrp4. respectively. Phylogenetic analysis revealed that the cloned rat cDNA is closely related to human MRP4 and mouse Mrp4. Additionally, an alternatively spliced variant, 111bp shorter than the full-length form, was cloned. Rat Mrp4 mRNA was detectable in 11 tissues examined, with levels being highest in kidney, and lowest in liver. Mrp4 mRNA levels in kidney were higher in males than females, and at birth were about half of adult levels. Mrp4 expression in liver and kidney of rats treated with six classes of microsomal enzyme inducers was examined. Mrp4 mRNA in liver was induced by two electrophilc response element activators, namely ethoxyquin and oltipraz. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：46 / 53

页数：8

共 32 条

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