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非洲爪蟾组蛋白基因在注射的蛙卵母细胞核中转录所需的启动子序列。

Promoter sequences required for transcription of Xenopus laevis histone genes in injected frog oocyte nuclei.

作者信息

Heindl L M, Weil T S, Perry M

机构信息

Department of Biochemistry and Molecular Biology, University of Texas, M. D. Anderson Hospital and Tumor Institute, Houston 77030.

出版信息

Mol Cell Biol. 1988 Sep;8(9):3676-82. doi: 10.1128/mcb.8.9.3676-3682.1988.

DOI:10.1128/mcb.8.9.3676-3682.1988
PMID:3221862
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC365423/
Abstract

Amphibian oogenesis is accompanied by the accumulation of histone mRNA and proteins in the absence of ongoing DNA replication. To begin an analysis of the mechanisms by which histone gene expression is regulated during frog oogenesis and embryogenesis, we used oocyte injection to examine the upstream sequences required for transcription of genes encoding each of the five histone classes. We found that sequences necessary for maximal levels of transcription are located 100 to 200 base pairs upstream of the corresponding start sites. In this region, each promoter examined contains conserved sequence elements, several of which seem to be histone gene class specific, in addition to other, more common sequence elements believed to be used by general transcription factors.

摘要

两栖动物卵子发生过程中,在没有进行性DNA复制的情况下伴随着组蛋白mRNA和蛋白质的积累。为了开始分析在青蛙卵子发生和胚胎发生过程中组蛋白基因表达调控的机制,我们使用卵母细胞注射来检测编码五种组蛋白类别的每个基因转录所需的上游序列。我们发现,最大转录水平所需的序列位于相应起始位点上游100至200个碱基对处。在该区域,每个检测的启动子都包含保守序列元件,除了其他被认为是一般转录因子使用的更常见序列元件外,其中几个似乎是组蛋白基因类别特异性的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32cb/365423/45b55f0f345e/molcellb00069-0119-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32cb/365423/632cf347cc94/molcellb00069-0117-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32cb/365423/56e19f279aa2/molcellb00069-0118-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32cb/365423/45b55f0f345e/molcellb00069-0119-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32cb/365423/632cf347cc94/molcellb00069-0117-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32cb/365423/56e19f279aa2/molcellb00069-0118-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/32cb/365423/45b55f0f345e/molcellb00069-0119-a.jpg

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本文引用的文献

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Mol Cell Biol. 1991 Feb;11(2):641-54. doi: 10.1128/mcb.11.2.641-654.1991.
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Histone H2B gene transcription during Xenopus early development requires functional cooperation between proteins bound to the CCAAT and octamer motifs.非洲爪蟾早期发育过程中组蛋白H2B基因转录需要与CCAAT和八聚体基序结合的蛋白质之间的功能协作。
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Spacer DNA sequences upstream of the T-A-T-A-A-A-T-A sequence are essential for promotion of H2A histone gene transcription in vivo.T-A-T-A-A-A-T-A序列上游的间隔DNA序列对于体内H2A组蛋白基因转录的促进至关重要。
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