Region-specific enhancers near two mammalian homeo box genes define adjacent rostrocaudal domains in the central nervous system.
Region-specific enhancers near two mammalian homeo box genes define adjacent rostrocaudal domains in the central nervous system.
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两个哺乳动物同源盒基因附近的区域特异性增强子定义了中枢神经系统中相邻的轴尾结构域。
DOI:
10.1101/gad.4.2.180
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发表时间:
1990
影响因子:
10.5
通讯作者:
Nguyen-Huu,MC
中科院分区:
文献类型:
--
作者:
Tuggle,CK;Zakany,J;Cianetti,L;Peschle,C;Nguyen-Huu,MC
To gain insight to the mechanisms underlying region-specific gene expression in mammalian development, we investigated the regulatory DNA associated with the proximal promoter of two homeo box genes, murine Hox-1.3 and human Hox-5.1. Using lacZ gene fusions in transgenic mice, we identified regulatory elements in the 5'-flanking sequences of the Hox-1.3 and the Hox-5.1 genes that specifically direct beta-galactosidase expression to the brachial and the upper cervical regions (respectively) of the central nervous system (CNS). These two elements act at the transcriptional level, are active in either orientation, and confer region-specific expression to unrelated promoters, satisfying the criteria for enhancer elements. The two spatial domains defined by these enhancers are directly adjoining, extend along the rostrocaudal axis for the same span of 6-7 metameres, and represent specific subsets of the overall CNS regions expressing all endogenous Hox-1.3 or Hox-5.1 transcripts. The adjacent domains in the developing murine CNS that express Hox-1.3 and Hox-5.1 gene fusions are strikingly reminiscent of the adjacent stripes of expression in Drosophila embryos seen with Sex combs reduced and Deformed, the two Drosophila homeotic genes most homologous to Hox-1.3 and Hox-5.1, respectively. These findings represent the first demonstration of region-specific mammalian enhancers and raise the possibility that the mammalian CNS may be subdivided into a series of rostrocaudal domains on the basis of the activity of enhancers near homeo box genes.
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DOI:
--
发表时间:
1990
期刊:
Journal de physiologie
影响因子:
--
作者:
Zakany,J;Tuggle,CK;Nguyen-Huu,CM
通讯作者:
Nguyen-Huu,CM
DOI:
10.1111/j.1432-0436.1989.tb00598.x
发表时间:
1989
期刊:
Differentiation; research in biological diversity
影响因子:
--
作者:
A. Giampaolo;D. Acampora;V. Zappavigna;M. Pannese;M. D'Esposito;A. Carè;Antonio Feiella;A. Stornaiuolo;G. Russo;A. Simeone;E. Boncinelli;C. Peschle
通讯作者:
C. Peschle
影响因子:
10.5
作者:
W. Odenwald;James Garbern;Heinz Arnheiter;Elizabeth Tournier;Robert A. Lazzarini
通讯作者:
Robert A. Lazzarini
DOI:
10.1146/annurev.cb.02.110186.000405
发表时间:
1986
期刊:
Annual review of cell biology
影响因子:
--
作者:
Scott,MP;O'Farrell,PH
通讯作者:
O'Farrell,PH
影响因子:
4.6
作者:
Alfonso Martinez;Philip W. Ingham;Matthew P. Scott;M. Akam
通讯作者:
M. Akam