STRUCTURE AND EXPRESSION OF THE HUMAN GATA3 GENE

被引:57
作者
LABASTIE, MC
BORIES, D
CHABRET, C
GREGOIRE, JM
CHRETIEN, S
ROMEO, PH
机构
[1] HOP HENRI MONDOR, INSERM, U91, F-94010 CRETEIL, FRANCE
[2] INST NATL TRANSFUS SANGUINE, INSERM, U76, F-75015 PARIS, FRANCE
关键词
D O I
10.1006/geno.1994.1217
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
GATA3, a member of the GATA family that is abundantly expressed in the T-lymphocyte lineage, is thought to participate in T cell receptor gene activation through binding to enhancers. To understand GATA3 gene regulation, we cloned the human gene and the 5' end of the mouse GATA3 gene. We show that the human GATA3 gene contains six exons distributed over 17 kb of DNA. The two human GATA3 zinc fingers are encoded by two separate exons highly conserved with those of GATA1, but no other structural homologies between these two genes can be found. The human and mouse GATA3 transcription units start at a major initiation site. The promoter sequence analysis of these two genes revealed that they are embedded within a CpG island and share structural features often found in the promoters of housekeeping genes. Finally, we show that a DNA fragment containing the human GATA3 transcription unit, 3 kb upstream from the initiation site and 4 kb downstream from the polyadenylation site, displays T-cell specificity. (C) 1994 Academic Press, Inc.
引用
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页码:1 / 6
页数:6
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