CPE-binding protein 1, CPE-BP1, CPEB 1, CPEB, CPEB1, CPEB1 protein, CPEB1_HUMAN, Cytoplasmic polyadenylation binding protein 1, Cytoplasmic polyadenylation element binding protein, Cytoplasmic polyadenylation element binding protein 1, Cytoplasmic polyadenylation element-binding protein 1, h-CEBP, hCPEB-1
Sequence-specific RNA-binding protein that regulates mRNA cytoplasmic polyadenylation and translation initiation during oocyte maturation, early development and at postsynapse sites of neurons. Binds to the cytoplasmic polyadenylation element (CPE), an uridine-rich sequence element (consensus sequence 5-UUUUUAU-3) within the mRNA 3-UTR. In absence of phosphorylation and in association with TACC3 is also involved as a repressor of translation of CPE-containing mRNA, a repression that is relieved by phosphorylation or degradation (By similarity). Involved in the transport of CPE-containing mRNA to dendrites, those mRNAs may be transported to dendrites in a translationally dormant form and translationally activated at synapses (By similarity). Its interaction with APLP1 promotes local CPE-containing mRNA polyadenylation and translation activation (By similarity). Induces the assembly of stress granules in the absence of stress.
