Paip2 is localized to active promoters and loaded onto nascent mRNA in Drosophila. Author Zaur Kachaev, Lyubov Lebedeva, Eugene Kozlov, Ilya Toropygin, Paul Schedl, Yulii Shidlovskii Publication Year 2018 Type Journal Article Abstract Paip2 (Poly(A)-binding protein - interacting protein 2) is a conserved metazoan-specific protein that has been implicated in regulating the translation and stability of mRNAs. However, we have found that Paip2 is not restricted to the cytoplasm but is also found in the nucleus in Drosophila embryos, salivary glands, testes, and tissue culture cells. Nuclear Paip2 is associated with chromatin, and in chromatin immunoprecipitation experiments it maps to the promoter regions of active genes. However, this chromatin association is indirect, as it is RNA-dependent. Thus, Paip2 is one more item in the growing list of translation factors that are recruited to mRNAs co-transcriptionally. Keywords Animals, Drosophila Proteins, Promoter Regions, Genetic, RNA, Messenger, Cell Line, Protein Binding, Carrier Proteins, Male, Drosophila melanogaster, Embryo, Nonmammalian, Testis, Chromatin, Poly(A)-Binding Proteins Journal Cell Cycle Volume 17 Issue 14 Pages 1708-1720 Date Published 2018 ISSN Number 1551-4005 DOI 10.1080/15384101.2018.1496738 Alternate Journal Cell Cycle PMCID PMC6133343 PMID 29995569 PubMedPubMed CentralGoogle ScholarBibTeXEndNote X3 XML