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2014 ; 74
(17
): 4741-51
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
NACK is an integral component of the Notch transcriptional activation complex and
is critical for development and tumorigenesis
#MMPMID25038227
Weaver KL
; Alves-Guerra MC
; Jin K
; Wang Z
; Han X
; Ranganathan P
; Zhu X
; DaSilva T
; Liu W
; Ratti F
; Demarest RM
; Tzimas C
; Rice M
; Vasquez-Del Carpio R
; Dahmane N
; Robbins DJ
; Capobianco AJ
Cancer Res
2014[Sep]; 74
(17
): 4741-51
PMID25038227
show ga
The Notch signaling pathway governs many distinct cellular processes by
regulating transcriptional programs. The transcriptional response initiated by
Notch is highly cell context dependent, indicating that multiple factors
influence Notch target gene selection and activity. However, the mechanism by
which Notch drives target gene transcription is not well understood. Herein, we
identify and characterize a novel Notch-interacting protein, Notch activation
complex kinase (NACK), which acts as a Notch transcriptional coactivator. We show
that NACK associates with the Notch transcriptional activation complex on DNA,
mediates Notch transcriptional activity, and is required for Notch-mediated
tumorigenesis. We demonstrate that Notch1 and NACK are coexpressed during mouse
development and that homozygous loss of NACK is embryonic lethal. Finally, we
show that NACK is also a Notch target gene, establishing a feed-forward loop.
Thus, our data indicate that NACK is a key component of the Notch transcriptional
complex and is an essential regulator of Notch-mediated tumorigenesis and
development.