Identification of cis-regulatory elements required for larval expression of the Drosophila melanogaster alcohol dehydrogenase gene.

Identification of cis-regulatory elements required for larval expression of the Drosophila melanogaster alcohol dehydrogenase gene.
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果蝇乙醇脱氢酶基因幼虫表达所需的顺式调控元件的鉴定。

DOI:
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发表时间:
1990
期刊:
影响因子:
3.3
通讯作者:
T. Maniatis
T. Maniatis
中科院分区:
生物学2区
文献类型:
--
作者:
V. Corbin;T. Maniatis

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两个远亲物种,黑腹果蝇和果蝇mulleri的乙醇脱氢酶(Adh)基因,显示相似的,但不相同,在幼虫和成人的组织特异性表达模式。野生型Adh在D.以前曾报道过穆氏幼虫。在本文中,我们提出了一个分析的DNA序列所必需的野生型Adh表达的D。黑腹幼虫我们发现,从黑腹Adh基因的近端启动子的转录调控由一个远上游增强子和两个或两个以上的元件附近的转录起始位点。增强子是组织特异性的,并且无论与近端启动子还是与异源启动子连接,都刺激脂肪体中的高水平转录和中肠和马氏管中的较低水平转录。增强子活性定位于分散在超过1.7kb的DNA上的至少两个离散区域。这些亚区中的任何一个的缺失都会降低所有三种幼虫组织中的Adh转录。同样,两个区域的近端启动子起始位点的上游是必需的野生型转录水平在所有三种组织。因此,每个确定的调控元件是足够的低水平的Adh基因表达在所有三个幼虫组织,但最大水平的表达需要整个集。
The Alcohol dehydrogenase (Adh) genes of two distantly related species, Drosophila melanogaster and Drosophila mulleri, display similar, but not identical, patterns of tissue-specific expression in larvae and adults. The regulatory DNA sequences necessary for wild-type Adh expression in D. mulleri larvae were previously reported. In this paper we present an analysis of the DNA sequences necessary for wild-type Adh expression in D. melanogaster larvae. We show that transcription from the proximal promoter of the melanogaster Adh gene is regulated by a far upstream enhancer and two or more elements near the transcription start site. The enhancer is tissue specific and stimulates transcription to high levels in fat body and to lower levels in midgut and malpighian tubules whether linked to the proximal promoter or to a heterologous promoter. The enhancer activity localized to at least two discrete regions dispersed over more than 1.7 kb of DNA. Deletion of any one of these subregions reduces Adh transcription in all three larval tissues. Similarly, two regions immediately upstream of the proximal promoter start site are necessary for wild-type transcription levels in all three tissues. Thus, each of the identified regulatory elements is sufficient for low levels of Adh gene expression in all three larval tissues, but maximal levels of expression requires the entire set.
克隆的果蝇乙醇脱氢酶基因转染至培养的果蝇细胞后正确表达。
DOI: 10.1073/pnas.81.6.1701
发表时间: 1984
影响因子: 11.1
作者:
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通讯作者: Dray,JF
黑腹果蝇中 Drosophila affinidisjuncta 乙醇脱氢酶基因的复杂发育调控。
DOI: 10.1016/0012-1606(88)90059-0
发表时间: 1988
影响因子: 2.7
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DOI: 10.1002/bies.950080608
发表时间: 1988
期刊: BioEssays : news and reviews in molecular, cellular and developmental biology
影响因子: --
作者:
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通讯作者: Dickinson,WJ
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发表时间: 1987
期刊: Genetics
影响因子: 3.3
作者:
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通讯作者: Stam,LF
编码乙醇脱氢酶的两种替代转录物在不同种类的图翅果蝇中以不同的发育特异性积累。
DOI: 10.1093/genetics/114.2.435
发表时间: 1986
期刊: Genetics
影响因子: 3.3
作者:
Rowan,RG;Dickinson,WJ
通讯作者: Dickinson,WJ