Dampened regulates the activating potency of Bicoid and the embryonic patterning outcome in Drosophila.

Dampened regulates the activating potency of Bicoid and the embryonic patterning outcome in Drosophila.
复制标题

DOI:
10.1038/ncomms3968
复制
发表时间:
2013
影响因子:
16.6
通讯作者:
Ma, Jun
Ma, Jun
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Liu, Junbo;Ma, Jun

文献摘要

参考文献

被引文献

相似文献

果蝇Bicoid的形态梯度(Bcd)启动了前后(AP)模式,但人们对其激活靶基因的能力如何影响这一过程知之甚少。在这里,我们报道了一个F-box蛋白,Dampened (Dmpd)作为Bcd的核辅助因子,可以增强其激活效力。我们建立了一个定量平台,专门研究Bcd靶基因反应的两个参数,表达幅度和边界位置。我们发现,缺乏Dmpd的胚胎在发育的关键时期,bcd激活的驼背(hb)表达幅度降低。这是由于降低了bcd依赖的转录概率。这种缺陷忠实地传播到AP图案网络的下游,以改变均匀跳过(eve)条纹的空间特性。因此,与另一种Bcd相互作用的F-box蛋白Fsd不同(Fsd通过调节Bcd梯度谱来控制AP模式),Dmpd通过调节Bcd的激活能力来实现其模式作用。
The Drosophila morphogen gradient of Bicoid (Bcd) initiates anterior-posterior (AP) patterning, but it is poorly understood how its ability to activate a target gene may impact this process. Here we report an F-box protein, Dampened (Dmpd) as a nuclear co-factor of Bcd that can enhance its activating potency. We establish a quantitative platform to specifically investigate two parameters of a Bcd target gene response, expression amplitude and boundary position. We show that embryos lacking Dmpd have a reduced amplitude of Bcd-activated hunchback (hb) expression at a critical time of development. This is due to a reduced Bcd-dependent transcribing probability. This defect is faithfully propagated further downstream of the AP patterning network to alter the spatial characteristics of even-skipped (eve) stripes. Thus, unlike another Bcd-interacting F-box protein Fates-shifted (Fsd), which controls AP patterning through regulating the Bcd gradient profile, Dmpd achieves its patterning role through regulating the activating potency of Bcd.
DOI: 10.1016/s0960-9822(03)00451-2
发表时间: 2003-07-15
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Forrest, KM;Gavis, ER
通讯作者: Gavis, ER
DOI: 10.1371/journal.pone.0060876
发表时间: 2013
期刊: PloS one
影响因子: 3.7
作者:
He F;Ma J
通讯作者: Ma J
DOI: 10.1016/j.cub.2011.08.019
发表时间: 2011-09-27
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Bothma, Jacques P.;Magliocco, Joe;Levine, Michael
通讯作者: Levine, Michael
DOI: 10.1016/0092-8674(88)90182-1
发表时间: 1988-07-01
期刊: CELL
影响因子: 64.5
作者:
DRIEVER, W;NUSSLEINVOLHARD, C
通讯作者: NUSSLEINVOLHARD, C
DOI: 10.1016/j.cell.2012.03.018
发表时间: 2012-04-27
期刊: Cell
影响因子: 64.5
作者:
Chen H;Xu Z;Mei C;Yu D;Small S
通讯作者: Small S