Abstract：
:Suppressor of Hairless [Su(H)]/Lag-1/RBP-Jkappa/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 auto-repression 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.
journal_name
Celljournal_title
Cellauthors
Barolo S,Walker RG,Polyanovsky AD,Freschi G,Keil T,Posakony JWdoi
10.1016/s0092-8674(00)00198-7subject
Has Abstractpub_date
2000-12-08 00:00:00pages
957-69issue
6eissn
0092-8674issn
1097-4172pii
S0092-8674(00)00198-7journal_volume
103pub_type
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