Esmaillie, Ignarski, Bohl, Krüger, Ahmad, Seufert, Schermer, Benzing, Müller, Fabretti (2019) Activation of Hypoxia-Inducible Factor Signaling Modulates the RNA Protein Interactome in Caenorhabditis elegans iScience 22() 466-476

Abstract

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). Copyright © 2019 The Author(s). Published by Elsevier Inc. All rights reserved.

Links

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926210/pdf/
http://www.ncbi.nlm.nih.gov/pubmed/31835171
http://dx.doi.org/10.1016/j.isci.2019.11.039

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