Cytoplasmic Prep1 Interacts with 4EHP Inhibiting Hoxb4 Translation

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Cytoplasmic Prep1 Interacts with 4EHP Inhibiting Hoxb4 Translation

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Cap-binding protein 4EHP effects translation silencing by microRNAs.

MicroRNAs (miRNAs) play critical roles in a broad variety of biological processes by inhibiting translation initiation and by destabilizing target mRNAs. The CCR4-NOT complex effects miRNA-mediated silencing, at least in part through interactions with 4E-T (eIF4E transporter) protein, but the precise mechanism is unknown. Here we show that the cap-binding eIF4E-homologous protein 4EHP is an int...

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p160 Myb-binding protein interacts with Prep1 and inhibits its transcriptional activity.

Prep1 is known to interact in vivo with Pbx1 to regulate development and organogenesis. We have identified a novel Prep1-interacting protein, p160 c-Myb binding protein (p160). p160 and Pbx1 compete for Prep1 in vitro, and p160 inhibits Prep1-dependent HoxB2 expression in retinoic acid-treated NT2-D1 cells. The N-terminal physiologically truncated form of p160, p67, binds the sequence 63LFPLL67...

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ژورنال

عنوان ژورنال: PLoS ONE

سال: 2009

ISSN: 1932-6203

DOI: 10.1371/journal.pone.0005213