An enhancer-like sequence within the Xenopus U2 gene promoter facilitates the formation of stable transcription complexes
An enhancer-like sequence within the Xenopus U2 gene promoter facilitates the formation of stable transcription complexes
复制标题
非洲爪蟾 U2 基因启动子内的增强子样序列促进稳定转录复合物的形成
作者:
I. Mattaj;S. Lienhard;J. Jiricny;E. D. Robertis
Enhancers are eukaryotic promoter elements that increase tran-scriptional efficiency in a manner relatively independent of their position and orientation with respect to a nearby gene1–3. There is growing evidence that enhancer action is mediated by transacting factors4–8, but the mode of action of these factors is not yet known. We report here on the Xenopus U2 gene promoter, which contains two sequence elements. The distal sequence element increases promoter activity 20-fold by facilitating the formation of stable transcription complexes. A synthetic 14-base-pair (bp) oligonucleotide corresponding to part of the distal sequence element, which shows homology to an immunoglobulin gene promoter element and to both the simian virus 40 (SV40) and the immunoglobulin heavy-chain gene enhancers, stimulates transcription in an orientation-independent manner.
影响因子:
56.9
作者:
EPHRUSSI, A;CHURCH, GM;GILBERT, W
通讯作者:
GILBERT, W
DOI:
10.1002/j.1460-2075.1984.tb02293.x
发表时间:
1984
期刊:
The EMBO journal
影响因子:
--
作者:
Westin,G;Lund,E;Murphy,JT;Pettersson,U;Dahlberg,JE
通讯作者:
Dahlberg,JE
DOI:
10.1073/pnas.81.9.2650
发表时间:
1984-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
PARSLOW, TG;BLAIR, DL;GRANNER, DK
通讯作者:
GRANNER, DK