A Screen for RNA-Binding Proteins in Yeast Indicates Dual Functions for Many Enzymes
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Date
2010-11-11Type
- Journal Article
ETH Bibliography
yes
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Abstract
Hundreds of RNA-binding proteins (RBPs) control diverse aspects of post-transcriptional gene regulation. To identify novel and unconventional RBPs, we probed high-density protein microarrays with fluorescently labeled RNA and selected 200 proteins that reproducibly interacted with different types of RNA from budding yeast Saccharomyces cerevisiae. Surprisingly, more than half of these proteins represent previously known enzymes, many of them acting in metabolism, providing opportunities to directly connect intermediary metabolism with posttranscriptional gene regulation. We mapped the RNA targets for 13 proteins identified in this screen and found that they were associated with distinct groups of mRNAs, some of them coding for functionally related proteins. We also found that overexpression of the enzyme Map1 negatively affects the expression of experimentally defined mRNA targets. Our results suggest that many proteins may associate with mRNAs and possibly control their fates, providing dense connections between different layers of cellular regulation. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000026854Publication status
publishedExternal links
Journal / series
PLoS ONEVolume
Pages / Article No.
Publisher
PLOSOrganisational unit
03683 - Detmar, Michael (emeritus) / Detmar, Michael (emeritus)
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ETH Bibliography
yes
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