Human BTR1, a new bicarbonate transporter superfamily member and human AE4 from kidney

被引:107
作者
Parker, MD [1 ]
Ourmozdi, EP [1 ]
Tanner, MJA [1 ]
机构
[1] Univ Bristol, Sch Med Sci, Dept Biochem, Bristol BS8 1TD, Avon, England
基金
英国惠康基金;
关键词
anion exchanger; bicarbonate transport; beta-intercalated; kidney; NBC; pH; salivary; thyroid; trachea;
D O I
10.1006/bbrc.2001.4692
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
We report the cloning, characterization, and chromosomal localization of two novel human members of the bicarbonate transporter superfamily, BTR1 (Bi-carbonate Transporter Related protein-1) and AE4 (Anion Exchange protein 4). BTR1 is a novel mammalian protein. The BTR1 gene maps to chromosome 20p12 and encodes a 100 kDa protein predominantly expressed in the kidney salivary glands, testis, thyroid glands, and trachea. The AE4 gene maps to chromosome 5q23-31 and encodes a 104 kDa protein expressed mainly in the kidney. Human AE4 shares 84% identity with the recently reported rabbit a sodium independent, Cl-/HCO3- exchanger located on the apical membrane of beta -intercalated kidney cells. (C) 2001 Academic Press.
引用
收藏
页码:1103 / 1109
页数:7
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