Activation of Hypoxia-Inducible Factor Signaling Modulates the RNA Protein Interactome in Caenorhabditis elegans

Autor: Roman-Ulrich Müller, Tim Krüger, Thomas Benzing, Katrin Bohl, Michael Ignarski, Reza Esmaillie, Bernhard Schermer, Daniyal Ahmad, Lisa Seufert, Francesca Fabretti
Rok vydání: 2019
Předmět:
Zdroj: iScience
iScience, Vol 22, Iss, Pp 466-476 (2019)
ISSN: 2589-0042
Popis: Summary The cellular response to hypoxia is crucial to organismal survival, and hypoxia-inducible factors (HIF) are the key mediators of this response. HIF-signaling is central to many human diseases and mediates longevity in the nematode. Despite the rapidly increasing knowledge on RNA-binding proteins (RBPs), little is known about their contribution to hypoxia-induced cellular adaptation. We used RNA interactome capture (RIC) in wild-type Caenorhabditis elegans and vhl-1 loss-of-function mutants to fill this gap. This approach identifies more than 1,300 nematode RBPs, 270 of which can be considered novel RBPs. Interestingly, loss of vhl-1 modulates the RBPome. This difference is not primarily explained by protein abundance suggesting differential RNA-binding. Taken together, our study provides a global view on the nematode RBPome and proteome as well as their modulation by HIF-signaling. The resulting RBP atlas is also provided as an interactive online data mining tool (http://shiny.cecad.uni-koeln.de:3838/celegans_rbpome).
Graphical Abstract
Highlights • RNA interactome capture in wild-type C. elegans and vhl-1 loss-of-function mutants • Identification of 1,354 nematode RBPs, 270 of which can be considered novel RBPs • The modulation of the RBPome by vhl-1 is primary explained by differential RNA-binding • The resulting RBP atlas is provided as an interactive online data mining tool
Biological Sciences; Molecular Biology; Molecular Interaction; Molecular Network; Integrative Aspects of Cell Biology; Proteomics
Databáze: OpenAIRE