Translational regulator orb2

UniProtKB accession:  Q9VSR3

Grouped By:  Matching UniProtKB accession

UniProtKB description:  RNA-binding protein involved in translational regulation and required for long-term memory (PubMed:28525754, PubMed:29105522). Required in mushroom body gamma neurons for long-term memory in male courtship (PubMed:17965711, PubMed:23083740). Binds to mRNA 3'-UTRs (PubMed:20547833, PubMed:26638074, PubMed:24830287, PubMed:26095367, PubMed:32165583). In its monomeric form, acts as a translational repressor of genes involved in neuronal growth, synapse formation and protein turnover (PubMed:20547833, PubMed:26638074, PubMed:32165583). In its amyloid-like oligomeric form, acts as a translational activator (PubMed:26638074, PubMed:32165583). The monomeric form reduces poly(A) tail length and destabilizes mRNA while the oligomeric form protects and elongates the poly(A) tail and stabilizes mRNA (PubMed:26638074). Involved in asymmetric cell division in the central nervous system (PubMed:21900268). Plays a role in synapse formation and morphology at neuromuscular junctions by modulating the translation of the tumor suppressor brat (PubMed:29105522). Required for the progression of spermatogenesis through meiosis and for sperm differentiation (PubMed:23209437). During sperm differentiation, required to asymmetrically localize and activate the translation of protein kinase aPKC mRNAs which is necessary for spermatid cyst polarization (PubMed:24830287). Also required during spermatid cyst polarization for localization and translation of its own mRNA (PubMed:24830287).