Yeast alpha 2 repressor positions nucleosomes in TRP1/ARS1 chromatin
Yeast alpha 2 repressor positions nucleosomes in TRP1/ARS1 chromatin
复制标题
酵母 α 2 阻遏蛋白在 TRP1/ARS1 染色质中定位核小体
DOI:
--
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发表时间:
1990
影响因子:
5.3
通讯作者:
R. Simpson
中科院分区:
文献类型:
--
作者:
S. Roth;A. Dean;R. Simpson
The yeast alpha 2 repressor suppresses expression of a-mating-type-specific genes in haploid alpha and diploid a/alpha cell types. We inserted the alpha 2-binding site into the multicopy TRP1/ARS1 yeast plasmid and examined the effects of alpha 2 on the chromatin structure of the derivative plasmids in alpha cells, and a/alpha cells. Whereas no effect on nucleosome position was observed in a cells, nucleosomes were precisely and stably positioned over sequences flanking the alpha 2 operator in alpha and a/alpha cells. In addition, when the alpha 2 operator was located upstream of the TRP1 gene, an extended array of positioned nucleosomes was formed in alpha cells and a/alpha cells, with formation of a nucleosome not present in a cells, and TRP1 mRNA production was substantially reduced. These data indicate that alpha 2 causes a positioning of nucleosomes over sequences proximal to its operator in TRP1/ARS1 chromatin and suggest that changes in chromatin structure may be related to alpha 2 repression of cell-type-specific genes.
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影响因子:
14.9
作者:
KORNBERG, RD;STRYER, L
通讯作者:
STRYER, L
影响因子:
5.3
作者:
Jarvis,EE;Hagen,DC;SpragueJr,GF
通讯作者:
SpragueJr,GF
DOI:
10.1073/pnas.83.8.2536
发表时间:
1986
影响因子:
11.1
作者:
Wilson,KL;Herskowitz,I
通讯作者:
Herskowitz,I
DOI:
10.1073/pnas.80.10.3035
发表时间:
1983-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
JENSEN, R;SPRAGUE, GF;HERSKOWITZ, I
通讯作者:
HERSKOWITZ, I
影响因子:
5.6
作者:
SpragueJr,GF;Herskowitz,I
通讯作者:
Herskowitz,I