Mechanistic dissection of chromatin pathways in development and cancer using biochemistry and genomics. UW-Madison School of Medicine and Public Health
TheLewisLab.net
The Lewis Lab
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Allosteric activation of PRC2 is coupled to adoption of the compact state. Our new bioRxiv manuscript shows that EZH2 S21-phos, adjacent to the SANT1 domain, restrains this conformational transition and limits activation. With @kasinath-lab.bsky.social & @garcialabms.bsky.social tinyurl.com/4369kmh2
Allosteric activation of PRC2 is coupled to adoption of the compact state. Our new bioRxiv manuscript shows that EZH2 S21-phos, adjacent to the SANT1 domain, restrains this conformational transition and limits activation. With @kasinath-lab.bsky.social & @garcialabms.bsky.social tinyurl.com/4369kmh2
How do cells tune PRC2 allostery? We find EZH2 Ser21-phos restrains PRC2 adoption of the compact active state. Loss of this restraint promotes H3K27me3, redistributes cPRC1, and impairs differentiation. New bioRxiv with @kasinath-lab.bsky.social & @garcialabms.bsky.social! tinyurl.com/4369kmh2
Is distal gene activation by enhancers inherently different from promoter-proximal activation? We propose not. But both cohesin and cooperativity are important aspects of how transcription is affected. Happy to share our recent preprint (thread below) 1/
www.biorxiv.org/content/10.6...
Yaay! Well done @bluebuleta.bsky.social and team! Great to see this work finally out! Read the paper to see how SETDB1 and HUSH regulate Xist transcription
Does PRC2 interact with RNA or is it an artefact? See our preprint showing how stringent denaturing purifications with spike-in controls support direct interaction between PRC2 and RNA in cells. www.biorxiv.org/content/10.6...
We’ve recently been awarded a MIRA R35 and an R01 to study non-canonical roles and missense mutations of the Polycomb system in health, cancer, and neurodevelopmental disorders. We are seeking an animal tech with lab manager duties. Please share!
