Interlocked feedforward loops control cell-type-specific Rhodopsin expression in the Drosophila eye.
Interlocked feedforward loops control cell-type-specific Rhodopsin expression in the Drosophila eye.
复制标题
互锁的前馈环控制果蝇眼中的细胞类型特异性的视紫红质的表达。
DOI:
10.1016/j.cell.2011.05.003
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发表时间:
2011-06-10
期刊:
影响因子:
64.5
通讯作者:
Desplan C
中科院分区:
文献类型:
--
作者:
Johnston RJ Jr;Otake Y;Sood P;Vogt N;Behnia R;Vasiliauskas D;McDonald E;Xie B;Koenig S;Wolf R;Cook T;Gebelein B;Kussell E;Nakagoshi H;Desplan C
How complex networks of activators and repressors lead to exquisitely specific cell type determination during development is poorly understood. In the Drosophila eye, expression patterns of Rhodopsins define at least eight functionally distinct though related subtypes of photoreceptors. Here, we describe a role for the transcription factor gene defective proventriculus (dve) as a critical node in the network regulating Rhodopsin expression. dve is a shared component of two opposing, interlocked feedforward loops (FFLs). Orthodenticle and Dve interact in an incoherent FFL to repress Rhodopsin expression throughout the eye. In the R7 and R8 photoreceptors, a coherent FFL relieves repression by Dve while activating Rhodopsin expression. Therefore, this network uses repression to restrict, and combinatorial activation to induce cell type-specific expression. Further, Dve levels are finely tuned to yield cell type- and region-specific repression or activation outcomes. This interlocked FFL motif may be a general mechanism to control terminal cell fate specification.
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影响因子:
64.8
作者:
Morey, Marta;Yee, Susan K.;Herman, Tory;Nern, Aljoscha;Blanco, Enrique;Zipursky, S. Lawrence
通讯作者:
Zipursky, S. Lawrence
影响因子:
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Kim, Dongsan;Kwon, Yung-Keun;Cho, Kwang-Hyun
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影响因子:
64.8
作者:
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通讯作者:
BENZER, S
影响因子:
56.9
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FRANCESCHINI, N;KIRSCHFELD, K;MINKE, B
通讯作者:
MINKE, B
影响因子:
2.5
作者:
Hu, Xiaobang;England, James H.;O'Tousa, Joseph E.
通讯作者:
O'Tousa, Joseph E.