George Burslem
@gburslem.bsky.social
📤 680
📥 468
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Chemical Biologist at Penn Medicine. Burslemlab.com Confused Brit in the US. He/him
How long until someone uses these to degrade BRD4?!
20 days ago
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Congratulations to my great friend and colleague
@bradylabupenn.bsky.social
for this well deserved award!
@pennmedcso.bsky.social
@penncancer.bsky.social
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about 1 month ago
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George Burslem
Emily Goldberg
about 2 months ago
Thrilled to finally write up a little thread on our recent paper with
@gburslem.bsky.social
describing how HDACs reversibility contributes to protein lactylation!
www.jbc.org/article/S002...
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New paper online from our long-standing collaboration with
@dremilygoldberg.bsky.social
on lysine lactylation catalysed by HDACs!
www.jbc.org/article/S002...
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Class I histone deacetylases catalyze lysine lactylation
Metabolism and post-translational modifications (PTMs) are intrinsically linked and the number of identified metabolites that can covalently modify proteins continues to increase. This metabolism/PTM ...
https://www.jbc.org/article/S0021-9258(25)02453-6/fulltext
about 2 months ago
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New paper online at ACS Bio & Med Chem Au with
@taabaman.bsky.social
! New peptide probes and inhibitors for caspase 8
pubs.acs.org/doi/10.1021/...
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A Potent Inhibitor of Caspase-8 Based on the IL-18 Tetrapeptide Sequence Reveals Shared Specificities between Inflammatory and Apoptotic Initiator Caspases
Caspases are a family of cysteine proteases that act as molecular scissors to cleave substrates and regulate biological processes, such as programmed cell death and inflammation. Extensive efforts hav...
https://pubs.acs.org/doi/10.1021/acsbiomedchemau.4c00146
3 months ago
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I’ve been many times and always leave feeling this way!
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4 months ago
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George Burslem
Research Trainee Affairs at Penn Medicine
4 months ago
Juneteenth is a story of freedom hard-won & resilience hard-kept—honoring Black history & the ongoing fight for justice. At Penn Medicine, Research Trainee Affairs advances discovery rooted in respect, access & opportunity—values that shape our comprehensive education, training & outreach mission.
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George Burslem
Brianna Hill-Payne
4 months ago
Truly grateful and honored to have had the opportunity to share my work at the Bioorganic GRC and represent the Burslem lab đź’™
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Congratulations to
@briehp.bsky.social
who gave an awesome Knowles award talk at the Bioorganic GRC! Very proud PI!
4 months ago
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George Burslem
PennMedCSO
4 months ago
Molecular basis of influenza ribonucleoprotein complex assembly & processive RNA synthesis ft. Ruchao Peng, Xin Xu, Yikang Gong, Fenglin Li, Max Ferretti, Mingyang Zhou, Kristen Lynch,
@gburslem.bsky.social
, @MarmorsteinLab &
@yiweichang.bsky.social
(@BB_Upenn)
www.science.org/doi/10.1126/...
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George Burslem
Yi-Wei Chang
5 months ago
Excited to share our new
@science.org
paper! Led by postdocs Ruchao Peng and Xin Xu, we used cryo-EM/ET to reveal the influenza ribonucleoprotein complex structure and its strand-sliding mechanism for RNA synthesis, paving the way for new antivirals.
www.science.org/doi/10.1126/...
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Molecular basis of influenza ribonucleoprotein complex assembly and processive RNA synthesis
Influenza viruses replicate and transcribe their genome in the context of a conserved ribonucleoprotein (RNP) complex. By integrating cryo–electron microscopy single-particle analysis and cryo–electro...
https://www.science.org/doi/10.1126/science.adq7597
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George Burslem
UPenn Institute of Structural Biology
5 months ago
Congratulations to Drs. Lynch, Burslem, Marmorstein, Yi-Wei, and the entire research team on the publication of your latest research article in the newest issue of Science magazine! | Science
www.science.org/doi/10.1126/...
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Molecular basis of influenza ribonucleoprotein complex assembly and processive RNA synthesis
Influenza viruses replicate and transcribe their genome in the context of a conserved ribonucleoprotein (RNP) complex. By integrating cryo–electron microscopy single-particle analysis and cryo–electro...
https://www.science.org/doi/10.1126/science.adq7597
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George Burslem
PennMedCSO
5 months ago
Intracellular protein editing & noncanonical residues in endogenous proteins ft. J. Beyer, K. Toy, M. Najar, N. Raniszewski,
@gburslem.bsky.social
(@BB_UPenn),
@ysereb.bsky.social
,
@efeierman.bsky.social
, @korblab &
@ophirshalem.bsky.social
(
@penngenetics.bsky.social
)
www.science.org/doi/10.1126/...
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Excited to see this out in
@science.org
today!!
www.science.org/doi/10.1126/...
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5 months ago
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George Burslem
TrumpsTaxes
5 months ago
Honestly, if there is just one article that you are going to share far-and-wide today, it's this one: 'Trump Has Now Deported Multiple U.S. Citizen Children With Cancer' The headline says it all, and everyone needs to know about this.
www.rollingstone.com/politics/pol...
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Trump Has Now Deported Multiple U.S. Citizen Children With Cancer
Two families who had lived in the United States for years, including a child with cancer and a pregnant mother, were deported by ICE on Friday.
https://www.rollingstone.com/politics/politics-news/trump-deport-child-cancer-us-citizen-1235325778/
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George Burslem
Yevgeniy Serebrenik
6 months ago
Thrilled to see our work now in
@cp-molcell.bsky.social
! It was an incredible privilege to do my postdoc with
@ophirshalem.bsky.social
and work alongside the super talented Steph Sansbury and our amazing co-authors. Excited to keep building on this research in our new lab at
@rwjms.bsky.social
!
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Ophir Shalem
6 months ago
Check out our paper, now extensively revised and published in
@cp-molcell.bsky.social
! This has been a real tour de force led by Stephanie Sansbury and
@ysereb.bsky.social
and we are very excited about the findings and future potential of this approach
www.cell.com/molecular-ce...
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Pooled tagging and hydrophobic targeting of endogenous proteins for unbiased mapping of unfolded protein responses
Sansbury and Serebrenik et al. use pooled gene tagging with in situ sequencing and high-throughput image analysis to generate a cell pool with endogenous HaloTag fusions. Hydrophobic targeting is then...
https://www.cell.com/molecular-cell/abstract/S1097-2765(25)00305-3
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George Burslem
Luke Lavis
6 months ago
We're looking for 1-2 enthusiastic early career chemists to join our Open Chemistry team at
@hhmijanelia.bsky.social
. Come help us create amazing dyes and share them with the world. Please share with the best recent/soon-to-be B.S. chemists you know!
bit.ly/42w8C6N
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Research Technician - Open Chemistry
Primary Work Address: 19700 Helix Drive, Ashburn, VA, 20147 Current HHMI Employees, click here to apply via your Workday account. Summary: Open Chemistry is a collaborative research group whose missio...
http://bit.ly/42w8C6N
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George Burslem
Jordan Meier
6 months ago
Great news: NIH postbac program is recruiting again! If your grad school plans were affected by program cutbacks or admissions freezes this year I highly encourage you to apply, this could be a perfect opportunity. Please repost.
www.training.nih.gov/research-tra...
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https://www.training.nih.gov/research-training/pb/pb/
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Excited to be co-chairing the Chemical tools to reveal new biology theme with
@davidlabmsk.bsky.social
!
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6 months ago
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George Burslem
Ashani Weeraratna
6 months ago
I am sending so much love to my colleagues at NIH today. They are incredible people and scientists and don’t serve any of this. 💔
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George Burslem
Jordan Meier
6 months ago
My favorite science is the kind that makes you says, "Man, I wish I thought of that!" This is such a paper. Mass action turns an eraser into a pen. HDACs are metabolite-dependent histone acyltransferases.
@dremilygoldberg.bsky.social
@gburslem.bsky.social
www.nature.com/articles/s41...
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Reversible histone deacetylase activity catalyzes lysine acylation - Nature Chemical Biology
Tsusaka et al. discover that histone deacetylases, which are well known to remove protein modifications, such as lysine acetylation and β-hydroxybutyrylation, can also reverse their chemical activity ...
https://www.nature.com/articles/s41589-025-01869-5
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Non-canonical acylation of lysine residues catalyzed by HDACs! Congratulations to
@dremilygoldberg.bsky.social
for such beautiful work and thanks for bringing us along for the ride!
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6 months ago
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George Burslem
Elton Zeqiraj
7 months ago
Excited to report our latest research on new “molecular glues” that specifically lock the BRCC36 isopeptidase complex (BRISC) in an autoinhibited state and reduce interferon signalling. This first-of-its-kind approach could reshape how we target large deubiquitylase (DUB) complexes.
rdcu.be/edRwF
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Emily Goldberg
7 months ago
This will also help you find people outside your circle who are also fighting. Pick a cause you care about, find a group or event, and just show up. You'll realize you are not alone, not even close
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George Burslem
Hiten Madhani
7 months ago
I’ll be there. There is a war on science happening. I intend to fight back.
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New paper online today! Check out @cewc9.bsky.socials review on how acetylation mediated protein degradation impacts cancer! Thanks for the invite to contribute to the 10th anniversary special issue of Trends in Cancer!
www.sciencedirect.com/science/arti...
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Acetylation: a new target for protein degradation in cancer
Acetylation is an increasing area of focus for cancer research as it is closely related to a variety of cellular processes through modulation of histo…
https://www.sciencedirect.com/science/article/pii/S2405803325000147
7 months ago
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Two new preprints online today! One with
@dremilygoldberg.bsky.social
on lysine lactylation
www.biorxiv.org/content/10.1...
Another with
@taabaman.bsky.social
on new peptide tools to study caspases
www.biorxiv.org/content/10.1...
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Class I histone deacetylases catalyze lysine lactylation
Metabolism and post-translational modifications (PTMs) are intrinsically linked and the number of identified metabolites that can covalently modify proteins continues to increase. This metabolism/PTM ...
https://www.biorxiv.org/content/10.1101/2025.02.25.640220v1
7 months ago
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George Burslem
Emily Goldberg
7 months ago
I'm excited to share our new preprint
@biorxivpreprint.bsky.social
describing what we think is the dominant mechanism of lysine lactylation. HDACs operating in reverse!! Great collab with
@gburslem.bsky.social
and
@mzspectrum.bsky.social
www.biorxiv.org/content/10.1...
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Class I histone deacetylases catalyze lysine lactylation
Metabolism and post-translational modifications (PTMs) are intrinsically linked and the number of identified metabolites that can covalently modify proteins continues to increase. This metabolism/PTM ...
https://www.biorxiv.org/content/10.1101/2025.02.25.640220v1
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We have a postdoc position available for a very cool collaborative project! Synthetic chemistry expertise is a must! Unfortunately due to the funding source, this position is only available to US citizens or permanent residents.
chemistryjobs.acs.org/job/postdoct...
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https://chemistryjobs.acs.org/job/postdoctoral-position-synthetic-chemist/77033085/
7 months ago
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George Burslem
PennMedCSO
8 months ago
ft. Hana Odeh, Bo Lim Lee, @korrie_mack, Alice Ford, @eddiebarb, @Ryan_Cupo, @LaurenDrake0, @JennaNBeyer, @MohammadAltafN3,
@gburslem.bsky.social
& @ShorterLab (@BB_UPenn) @PGGUPenn
@pennngg.bsky.social
www.cell.com/cell-reports...
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George Burslem
Derek Lowe
8 months ago
Biopharma companies and CEOs are keeping their heads down at their own peril. They should speak up about what’s happening to the NIH and other science agencies before it’s too late. Silence gives consent. And no one should consent to this.
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Stand Up And Be Counted
https://www.science.org/content/blog-post/stand-and-be-counted
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George Burslem
Heather Thomas
8 months ago
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George Burslem
Craig Kaplan
8 months ago
Pennsylvanians, this would be Dave Sunday and link is here:
www.attorneygeneral.gov
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George Burslem
Dr. Donita C. Brady of Brady Lab UPenn
8 months ago
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George Burslem
Zen Faulkes
8 months ago
Worst week for science EVER. Sunday: ASM scrubs DEI mentions from website. Tue: NASA scrubs DEI from website; ICE arrests a student on campus; NSF plans to cut staff; USAID halted. Wed: HHMI kills diversity program; NIH trashes applications for diversity F grants. Fri: NIH cuts indirects.
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George Burslem
Philip Ball
8 months ago
I have run out of patience with the apparent silence of most US science institutions (and not just US) in the face of Trump & Musk's rampage. There are of so many facets of that, but in this column for
@chemistryworld.com
I talk about the assaults on inclusion.
www.chemistryworld.com/opinion/scie...
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Scientific institutions have a long history of anticipatory obedience
Societies should learn from this and speak up to support inclusion
https://www.chemistryworld.com/opinion/scientific-institutions-have-a-long-history-of-anticipatory-obedience/4020931.article
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8 months ago
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George Burslem
Governor Tim Walz
8 months ago
Elon Musk is a terrible president.
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George Burslem
Dr Craig R McClain
8 months ago
Somewhere in the U.S., there’s a scientist staring at their NSF/NIH grant application wondering why they bother. This post is for you. Science and society both need you. Hang in there and know there is a whole community supporting you.
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That's one way to guarantee I'll never read your email....
9 months ago
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about 1 year ago
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George Burslem
Anne Carpenter
about 1 year ago
US citizens or permanent residents from an under-represented group! You can contact any NIH-funded researcher you admire & suggest applying for this supplement to join their lab! High school thru postdoc/faculty.
grants.nih.gov/grants/guide...
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PA-23-189: Research Supplements to Promote Diversity in Health-Related Research (Admin Supp Clinical Trial Not Allowed)
NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: Research Supplements to Promote Diversity in Health-Related Research (Admin Supp Clinical Trial Not Allowed) PA-23-189....
https://grants.nih.gov/grants/guide/pa-files/PA-23-189.html
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Ever wanted to edit a protein sequence inside a living mammalian cell? Maybe to site specifically incorporate a non-canonical residue? Perhaps you’d like to do a pull down without an antibody? Or use a small molecule fluorophore to image an endogenous protein? 1/4
about 1 year ago
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almost 2 years ago
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