期刊
CELL
卷 103, 期 6, 页码 957-969出版社
CELL PRESS
DOI: 10.1016/S0092-8674(00)00198-7
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资金
- NCI NIH HHS [5POCA23100-16] Funding Source: Medline
- NIGMS NIH HHS [GM46993, GM20123] Funding Source: Medline
Suppressor of Hairless [Su(H)]/Lag-1/RBP-J kappa /CBF1 is the only known transducing transcription factor for Notch receptor signaling. Here, we show that Su(H) has three distinct functions in the development of external mechanosensory organs in Drosophila: Notch-dependent transcriptional activation and a novel autorepression function, both of which direct cell fate decisions, and a novel auto-activation function required for normal socket cell differentiation. This third phase of activity, the first known Notch-independent activation function for Su(H) in development, depends on a cell type-specific autoregulatory enhancer that is active throughout adult life and is required for proper mechanoreception. These results establish a direct link between a broadly deployed cell signaling pathway and an essential physiological function of the nervous system.
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