Human gamma- to beta-globin gene switching using a mini construct in transgenic mice.
Human gamma- to beta-globin gene switching using a mini construct in transgenic mice.
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在转基因小鼠中使用微型构建体将人类 γ 球蛋白基因转换为 β 球蛋白。
DOI:
10.1128/mcb.12.4.1561-1567.1992
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发表时间:
1992
影响因子:
5.3
通讯作者:
Lingrel,JB
中科院分区:
文献类型:
--
作者:
Lloyd,JA;Krakowsky,JM;Crable,SC;Lingrel,JB
The developmental regulation of the human globin genes involves a key switch from fetal (γ-) to adult (β-) globin gene expression. It is possible to study the mechanism of this switch by expressing the human globin genes in transgenic mice. Previous work has shown that high-level expression of the human globin genes in transgenic mice requires the presence of the locus control region (LCR) upstream of the genes in the β-globin locus. High-level, correct developmental regulation of β-globin gene expression in transgenic mice has previously been accomplished only in 30- to 40-kb genomic constructs containing the LCR and multiple genes from the locus. This suggests that either competition for LCR sequences by other globin genes or the presence of intergenic sequences from the β-globin locus is required to silence the β-globin gene in embryonic life. The results presented here clearly show that the presence of the γ-globin gene (3.3 kb) alone is sufficient to down-regulate the β-globin gene in embryonic transgenic mice made with an LCR-γ-β-globin mini construct. The results also show that the γ-globin gene is down-regulated in adult mice from most transgenic lines made with LCR-γ-globin constructs not including the β-globin gene, i.e., that the γ-globin gene can be autonomously regulated. Evidence presented here suggests that a region 3′ of the γ-globin gene may be important for down-regulation in the adult. The 5′ΉS2γeηβ construct described is a suitable model for further study of the mechanism of human γ- to β-globin gene switching in transgenic mice.
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影响因子:
64.5
作者:
KOLLIAS, G;WRIGHTON, N;GROSVELD, F
通讯作者:
GROSVELD, F
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
G. Kollias;J. Hurst;E. Deboer;F. Grosveld
通讯作者:
F. Grosveld
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
R. Behringer;T. M. Ryan;R. Palmiter;R. Brinster;T. Townes
通讯作者:
T. Townes
影响因子:
64.8
作者:
ENVER, T;RAICH, N;STAMATOYANNOPOULOS, G
通讯作者:
STAMATOYANNOPOULOS, G
DOI:
10.1073/pnas.82.19.6384
发表时间:
1985-01-01
影响因子:
11.1
作者:
TUAN, D;SOLOMON, W;LONDON, IM
通讯作者:
LONDON, IM