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Transcriptional regulation of graded Hedgehog signaling
#MMPMID24862856
Falkenstein KN
; Vokes SA
Semin Cell Dev Biol
2014[Sep]; 33
(?): 73-80
PMID24862856
show ga
The Hedgehog (Hh) pathway plays conserved roles in regulating a diverse spectrum
of developmental processes. In some developmental contexts, a gradient of Hh
protein specifies multiple cell types in a dose-dependent fashion, thereby acting
as a morphogen. Hh signaling ultimately acts on the transcriptional level through
GLI proteins. In the presence of Hh signaling full length GLI proteins act as
transcriptional activators of target genes. Conversely, in the absence of Hh, GLI
proteins act as transcriptional repressors. This review will highlight mechanisms
contributing to how graded Hh signaling might translate to differential GLI
activity and be interpreted into distinct transcriptional responses.