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X-ORIGINAL-URL:https://www.pcb.ub.edu
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DTSTART;TZID=Europe/Madrid:20220525T120000
DTEND;TZID=Europe/Madrid:20220525T140000
DTSTAMP:20220517T083002Z
CREATED:20220517T082944Z
LAST-MODIFIED:20220517T083002Z
UID:74242-1653480000-1653487200@www.pcb.ub.edu
SUMMARY:High-throughput functional characterization of phosphorylation sites in yeast
DESCRIPTION:Phosphorylation is a critical post-translational modification involved in the regulation of almost all cellular processes. However\, fewer than 5% of thousands of recently discovered phosphosites have been functionally annotated. In this study\, we devised a chemical genetic approach to study the functional relevance of phosphosites in Saccharomyces cerevisiae. We generated 474 yeast strains with mutations in specific phosphosites that were screened for fitness in 102 conditions\, along with a gene deletion library. Of these phosphosites\, 42% exhibited growth phenotypes\, suggesting that these are more likely functional. We inferred their function based on the similarity of their growth profiles with that of gene deletions and validated a subset by thermal proteome profiling and lipidomics. A high fraction exhibited phenotypes not seen in the corresponding gene deletion\, suggestive of a gain-of-function effect. For phosphosites conserved in humans\, the severity of the yeast phenotypes is indicative of their human functional relevance. This high-throughput approach allows for functionally characterizing individual phosphosites at scale.
URL:https://www.pcb.ub.edu/esdeveniment/high-throughput-functional-characterization-of-phosphorylation-sites-in-yeast/
LOCATION:Edifici Torres R+D+I\, Auditori Antoni Caparrós\, C/ Baldiri Reixac 4-8\, Barcelona\, Barcelona\, 08028\, Espanya
ATTACH;FMTTYPE=image/jpeg:https://www.pcb.ub.edu/wp-content/uploads/2022/05/irb.jpg
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