Differential requirements for cell-specific elastase I enhancer domains in transfected cells and transgenic mice.
Differential requirements for cell-specific elastase I enhancer domains in transfected cells and transgenic mice.
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转染细胞和转基因小鼠对细胞特异性弹性蛋白酶 I 增强子结构域的不同需求。
DOI:
10.1101/gad.3.5.687
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发表时间:
1989
影响因子:
10.5
通讯作者:
Hammer,RE
中科院分区:
文献类型:
--
作者:
Swift,GH;Kruse,F;MacDonald,RJ;Hammer,RE
The 134-bp enhancer region of the pancreatic elastase I gene is sufficient to direct pancreatic acinar cell-specific transcription in transgenic mice and in transfected cells in culture. Ten-base-pair scanner mutations in three separate enhancer domains that inactivate enhancer function in transfected pancreatic cells in culture have no significant effect in transgenic mice. Because any pair of the three domains is sufficient to direct pancreas-specific expression in mice, no one domain is required for pancreas-specific transcription. Disruption of any two domains does inactivate the enhancer function in transgenic mice. Therefore, the elastase I enhancer domains essential for function in transfected cells in culture are not essential in animals but have a redundant function not apparent in transfected cells. This redundant function is not because of the particular acinar cell line used for transfections, the nature of the reporter gene, or the state of integration of the foreign test gene. We conclude that a trans-acting transcription factor or a modification of a factor(s) present in pancreatic cells of an animal is absent in pancreatic acinar cell lines.
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影响因子:
64.5
作者:
W. Hoeffler;R. Kovelman;R. Roeder
通讯作者:
R. Roeder
DOI:
--
发表时间:
1984-11
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
G. Swift;C. Craik;S. Stary;C. Quinto;R. Lahaie;W. Rutter;Raymond J MacDonald
通讯作者:
G. Swift;C. Craik;S. Stary;C. Quinto;R. Lahaie;W. Rutter;Raymond J MacDonald
影响因子:
64.8
作者:
ONDEK, B;GLOSS, L;HERR, W
通讯作者:
HERR, W
影响因子:
10.5
作者:
BEHRINGER, RR;MATHEWS, LS;BRINSTER, RL
通讯作者:
BRINSTER, RL
DOI:
10.1073/pnas.83.11.3599
发表时间:
1986
影响因子:
11.1
作者:
Boulet,AM;Erwin,CR;Rutter,WJ
通讯作者:
Rutter,WJ