CLONING, CHROMOSOMAL LOCATION AND FUNCTIONAL EXPRESSION OF THE HUMAN VOLTAGE-DEPENDENT CALCIUM-CHANNEL BETA-3 SUBUNIT

被引:54
作者
COLLIN, T
LORY, P
TAVIAUX, S
COURTIEU, C
GUILBAULT, P
BERTA, P
NARGEOT, J
机构
[1] CTR RECH BIOCHEM MACROMOLEC,CNRS,UPR 9008,INSERM,U249,F-34003 MONTPELLIER,FRANCE
[2] HOP CARREMEAU,SERV GYNECOL OBSTET,NIMES,FRANCE
[3] UNIV SCI & TECH LILLE FLANDRES ARTOIS,PHYSIOL CELLULAIRE LAB,VILLENEUVE DASCQ,FRANCE
来源
EUROPEAN JOURNAL OF BIOCHEMISTRY | 1994年 / 220卷 / 01期
关键词
D O I
10.1111/j.1432-1033.1994.tb18621.x
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
A novel human-voltage-dependent-calcium-channel (VDCC) beta subunit was isolated from a 9-week-old human total-embryo cDNA library. Of the four genes encoding beta-subunit isoforms that have been identified in animal species, this isoform shares strong similarity with the rat and rabbit beta(3)-related gene product and is referred to here as H beta(3) subunit. The H beta(3) isoform is the second beta subunit identified in human. Its open reading frame encodes a 482-amino-acid protein with a predicted molecular mass of 54.571 kDa. The H beta(3) mRNA is expressed mostly in brain, smooth muscle and ovary. The gene for the human H beta(3) was specifically localized on chromosome 12q13. The cloned H beta(3) subunit was further expressed in Xenopus oocytes to demonstrate its ability to modulate VDCC activity.
引用
收藏
页码:257 / 262
页数:6
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