Synthetic promoter elements obtained by nucleotide sequence variation and selection for activity.
Synthetic promoter elements obtained by nucleotide sequence variation and selection for activity.
复制标题
通过核苷酸序列变异和活性选择获得的合成启动子元件。
DOI:
10.1073/pnas.97.7.3038
复制
发表时间:
2000
影响因子:
11.1
通讯作者:
F. S. Jones
中科院分区:
文献类型:
--
作者:
G. Edelman;R. Meech;G. Owens;F. S. Jones
Eukaryotic transcriptional regulation in different cells involves large numbers and arrangements of cis and trans elements. To survey the number of cis regulatory elements that are active in different contexts, we have devised a high-throughput selection procedure permitting synthesis of active cis motifs that enhance the activity of a minimal promoter. This synthetic promoter construction method (SPCM) was used to identify >100 DNA sequences that showed increased promoter activity in the neuroblastoma cell line Neuro2A. After determining DNA sequences of selected synthetic promoters, database searches for known elements revealed a predominance of eight motifs: AP2, CEBP, GRE, Ebox, ETS, CREB, AP1, and SP1/MAZ. The most active of the selected synthetic promoters contain composites of a number of these motifs. Assays of DNA binding and promoter activity of three exemplary motifs (ETS, CREB, and SP1/MAZ) were used to prove the effectiveness of SPCM in uncovering active sequences. Up to 10% of 133 selected active sequences had no match in currently available databases, raising the possibility that new motifs and transcriptional regulatory proteins to which they bind may be revealed by SPCM. The method may find uses in constructing databases of active cis motifs, in diagnostics, and in gene therapy.
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DOI:
--
发表时间:
1998
期刊:
Cancer research.
影响因子:
--
作者:
Owens,GC;Orr,EA;DeMasters,BK;Muschel,RJ;Berens,ME;Kruse,CA
通讯作者:
Kruse,CA
影响因子:
56.9
作者:
Valdivia, RH;Falkow, S
通讯作者:
Falkow, S
影响因子:
56.9
作者:
LI, JJ;HERSKOWITZ, I
通讯作者:
HERSKOWITZ, I
影响因子:
10.5
作者:
Lagrange, T;Kapanidis, AN;Ebright, RH
通讯作者:
Ebright, RH
DOI:
10.1073/pnas.92.6.1955
发表时间:
1995-03-14
影响因子:
11.1
作者:
COLGAN, J;MANLEY, JL
通讯作者:
MANLEY, JL