Sign in

Mike Cohen

@michaelnadbio.bsky.social
743 followers 244 following 104 posts

Chemical biologist passionate about post-translational modifications (PTMs) and a keen interest in drug development. Professor at OHSU leading a team dedicated to unraveling the mysteries of PARPs and ADP-ribosylation.

PostsRepliesMedia
Reposted by Mike Cohen
Jonathan Pruneda @jnpruneda.bsky.social · 28/04/2026
Registration has been reopened to fill the last few remaining spots! Last chance to join us in Leiden this June!
043
Reposted by Mike Cohen
Keri Backus @keribackus.bsky.social · 28/04/2026
Super excited that our SEE-CITE photoaffinity labeling method is now out in @natchem.nature.com rdcu.be/ffBSC. Here we introduce a custom silyl ether cleavable linker between a diazirine photocrosslinker handle and molecules of interest to streamline site-of-labeling analysis for PAL chemoproteomics
14615
Reposted by Mike Cohen
Luke Lavis @rhodamine110.bsky.social · 24/03/2026
The best two years you can spend before graduate school! Get the hands of a 4th-year grad student contributing to Open Science: bit.ly/47mU5xx Or join an interdisciplinary AI/biology team (don't worry, the AI still needs you to do the actual experiments): bit.ly/4taqzni Both at Janelia!
bit.ly
Research Technician - Tool Translation Team
Primary Work Address: 19700 Helix Drive, Ashburn, VA, 20147 Current HHMI Employees, click here to apply via your Workday account. Summary: We are seeking a chemist to join the Tool Translation Team, "...
1106
Reposted by Mike Cohen
Joshua Saldivar @saldivar-lab.bsky.social · 04/02/2026
I am excited to share the first paper from the Saldivar lab! A special thank you to all who contributed. Precise control of transcription condensates across S phase balances linker histone expression with DNA replication, ensuring genome stability: Molecular Cell www.cell.com/molecular-ce...
cell.com
Precise control of transcription condensates across S phase balances linker histone expression with DNA replication, ensuring genome stability
Marmolejo et al. uncover transcription condensate dynamics at histone locus bodies across the cell cycle. These dynamics are governed by cell cycle (DDK and CDK1/2) and checkpoint (ATR-CHK1) kinases t...
03816
Mike Cohen @michaelnadbio.bsky.social · 03/02/2026
Congrats Karolin for this well deserved award!
010
Reposted by Mike Cohen
Zha Lab @zhalab.bsky.social · 21/01/2026
Registration deadline extended to January 31, 2026. Join us @nucleosomepolice.bsky.social @leunglab.bsky.social at CSHL for the PARP Meeting—connect with leaders and rising stars from academia and industry. Please kindly repost! .https://meetings.cshl.edu/meetings.aspx?meet=parp
meetings.cshl.edu
The PARP Family & ADP-ribosylation
Cold Spring Harbor Laboratory Meetings & Courses -- a private, non-profit institution with research programs in cancer, neuroscience, plant biology, genomics, bioinformatics.
021
Mike Cohen @michaelnadbio.bsky.social · 21/01/2026
Did you miss the original abstract deadline? No worries, we’ve extended it to January 30th! Don’t miss your chance to be part of an exciting meeting highlighting the cutting edge of the field.
034
Mike Cohen @michaelnadbio.bsky.social · 15/01/2026
Just two more days to submit abstracts for the "PARP Family and ADP-ribosylation CSHL meeting. We have an amazing lineup of speakers. The majority of speakers are selected from abstracts. Don't miss out! meetings.cshl.edu/meetings.asp...
meetings.cshl.edu
The PARP Family & ADP-ribosylation
Cold Spring Harbor Laboratory Meetings & Courses -- a private, non-profit institution with research programs in cancer, neuroscience, plant biology, genomics, bioinformatics.
0106
Mike Cohen @michaelnadbio.bsky.social · 06/01/2026
very cool, team Balyn-congrats!
020
Reposted by Mike Cohen
Balyn Zaro @balynzaro.bsky.social · 06/01/2026
Is arginine the new cysteine?! Check out our lab's latest in collaboration with @ianseiple.bsky.social's team where we introduce ninhydrin as a selective covalent warhead and probe targeting reactive arginines. www.biorxiv.org/content/10.6...
biorxiv.org
Ninhydrin as a covalent warhead for chemical proteomic-enabled discovery and selective engagement of reactive arginines
Covalent molecules have emerged as next-generation therapeutics and as powerful tools for perturbing fundamental biological processes. Chemical proteomic methods to screen for reactive proteinaceous a...
34721
Reposted by Mike Cohen
Kimberly Beatty @beattylab.bsky.social · 17/12/2025
New work from my team, identifying drug targets in M. abscessus. Pre-print posted here: www.biorxiv.org/content/10.6...
biorxiv.org
Chemoproteomic elucidation of β-lactam drug targets in Mycobacterium abscessus
The pathogen Mycobacterium abscessus ( Mab ) can cause severe and difficult to treat chronic lung infections. Despite the rising incidence and clinical concern of Mab infections, treatment options are...
0145
Mike Cohen @michaelnadbio.bsky.social · 07/12/2025
Looking forward to the biannual #CBP2025 conference @ohsunews.bsky.social starting this week! incredible line up of speakers, including keynotes @mbogyo.bsky.social, @christhechang.bsky.social, and Nancy Carrasco. www.ohsu.edu/school-of-me...
ohsu.edu
Chemical Biology and Physiology 2025 | OHSU
Chemical Biology and Physiology Conference 2025, December 11-13, 2025
061
Mike Cohen @michaelnadbio.bsky.social · 06/12/2025
Congrats!
010
Mike Cohen @michaelnadbio.bsky.social · 02/12/2025
Excellent study by first author @andriigorelik.bsky.social in @ahellab.bsky.social showing how DTX2 tunes AHR transcription and stability, offering deeper insight into ADP-ribosylation–ubiquitylation crosstalk.
030
Mike Cohen @michaelnadbio.bsky.social · 13/11/2025
Happy to have made a small contribution during my mini-sabbatical in @ladurner.bsky.social lab!
020
Mike Cohen @michaelnadbio.bsky.social · 13/11/2025
They demonstrate that a common PARP1 variant (V762) shifts talazoparib from a non-retentive (Type II) to an allosteric, pro-retention (Type I) mode, thereby boosting chromatin trapping and cancer cell killing. The finding makes a strong case for genotype-guided dosing in HRD cancer therapy.
120
Mike Cohen @michaelnadbio.bsky.social · 13/11/2025
Talazoparib stands out for its strong potency and DNA "trapping" in certain cancers, but why this happens wasn’t clear. A new preprint from first author Jin Cai in the @ladurner.bsky.social lab, together with Ben Black’s team, address this in a new preprint: www.biorxiv.org/content/10.1...
130
Mike Cohen @michaelnadbio.bsky.social · 11/11/2025
Agreed! This review thoughtfully and comprehensively dives into the world of HPF1. The questions at the end are on point!
152
Reposted by Mike Cohen
Jonathan Pruneda @jnpruneda.bsky.social · 30/10/2025
Excited to share the peer-reviewed version of our work, now online in @embojournal.org! Big thanks to our reviewers and @hvodermaier.bsky.social for facilitating this process. Looking forward to continuing this fun collaboration with @michaelnadbio.bsky.social! www.embopress.org/doi/full/10....
embopress.org
RNF114 and RNF166 exemplify reader-writer E3 ligases that extend K11 polyubiquitin onto sites of MARUbylation | The EMBO Journal
imageimageMARUbylation (mono-ADP-ribose ubiquitylation) is a multilayered post-translational modification controlled by PARPs and Deltex E3 ligases. This study identifies RNF114 and RNF166 as reader-w...
53513
Reposted by Mike Cohen
Jeremy Berg @jeremymberg.bsky.social · 17/07/2025
My quote of the day A Video Quote Medical miracles don't happen overnight. You have to invest in them. Our investments are in trouble. (From Francis Collins on The Late Show with Stephen Colbert, July 16, 2025)
422474
Reposted by Mike Cohen
Thiago Carvalho @cyrilpedia.bsky.social · 13/07/2025
'Particularly at risk is the category of basic research — the blue-sky variety meant to push back the frontiers of human knowledge and sow practical spinoffs and breakthroughs in such everyday fields as health care and artificial intelligence.' www.nytimes.com/2025/07/10/s...
nytimes.com
Trump Seeks to Cut Basic Scientific Research by Roughly One-Third, Report Shows
12418
Reposted by Mike Cohen
ahellab.bsky.social @ahellab.bsky.social · 10/07/2025
A few years back we discovered a dual hybrid protein modification composed of ADP-ribose dinucleotide and ubiquitin (ADPr-Ub). Now we reveal that ADPr-Ub can be further ubiquitinated by the E3 ubiquitin ligase RNF114! www.nature.com/articles/s41... www.science.org/doi/10.1126/...
nature.com
Identification of RNF114 as ADPr-Ub reader through non-hydrolysable ubiquitinated ADP-ribose - Nature Communications
Deltex E3s modify ADP-ribosylated targets with ubiquitin, creating a hybrid modification whose readers remains unknown. Here, the authors synthesise a non-hydrolysable probe that mimics the modificati...
1379
Reposted by Mike Cohen
Andrii Gorelik @andriigorelik.bsky.social · 10/07/2025
An amazing paper from van der Heden and Ahel groups! They use clever chemistry to identify RNF114 as a dual ADP-ribose-Ubiquitin reader involved in the DNA damage response! Congratulations to first authors Max, @chatrin-c.bsky.social and Rishov. Happy to have a small contribution in this story
nature.com
Identification of RNF114 as ADPr-Ub reader through non-hydrolysable ubiquitinated ADP-ribose - Nature Communications
Deltex E3s modify ADP-ribosylated targets with ubiquitin, creating a hybrid modification whose readers remains unknown. Here, the authors synthesise a non-hydrolysable probe that mimics the modificati...
0175
Mike Cohen @michaelnadbio.bsky.social · 10/07/2025
Congrats Jeremy! Well-deserved!
010
Mike Cohen @michaelnadbio.bsky.social · 09/07/2025
Exciting times in the fields of ADP-ribosylation and ubiquitylation!
010
Mike Cohen @michaelnadbio.bsky.social · 09/07/2025
This paper, coupled with an exciting new paper from @ahellab.bsky.social and the Van Der Heiden Van Noort groups: www.nature.com/articles/s41... And our recent collaborative work with @jnpruneda.bsky.social team: www.biorxiv.org/content/10.1... reveal RNF114 as a reader and writer of MARUbylation.
130
Mike Cohen @michaelnadbio.bsky.social · 09/07/2025
Cool new paper from Matic lab showing that MARUbylation occurs on serines in response to DNA damage.
170
Mike Cohen @michaelnadbio.bsky.social · 07/07/2025
Check out this story about my OHSU colleague’s work describing a previously unknown critical neurological function for dystroglycan with important implication for neuromuscular disease.
020
Mike Cohen @michaelnadbio.bsky.social · 03/07/2025
Check out this great review on the fascinating field of renal interoception by our newest faculty member, @rose-hill.bsky.social!
020
Mike Cohen @michaelnadbio.bsky.social · 25/06/2025
Very cool finding, Matt. Congrats!
010
Mike Cohen @michaelnadbio.bsky.social · 22/06/2025
💯 👇!
020
Mike Cohen @michaelnadbio.bsky.social · 20/06/2025
Great seeing both of you!
010
Reposted by Mike Cohen
Pete Buttigieg @petebuttigieg.bsky.social · 12/06/2025
Today they have crossed a deep red line. We, the people, must hold the president and his appointees accountable for this outrageous abuse against American liberty.
21465540417608
Mike Cohen @michaelnadbio.bsky.social · 12/06/2025
Excellent paper by first author @andriigorelik.bsky.social and @ahellab.bsky.social team that uncovers new insights into PARP7-AHR biology in PARP7i-sensitive cancer cells.
030
Reposted by Mike Cohen
Carolyn Bertozzi @carolynbertozzi.bskyverified.social · 09/06/2025
Please join the chorus of voices, including my own, in support of the talented, hardworking and dedicated scientists and staff at NIH. They serve their country by deploying their training and skills to improve the health and quality of life of all Americans 🙏 🇺🇸
313151
Mike Cohen @michaelnadbio.bsky.social · 08/06/2025
😂. Hopefully Proctor’s gym has been upgraded to include a post-game recovery room, with cold baths and compression gear-haha. Every time I go out and play my body’s reminding me I’m not 25 anymore!
000
Mike Cohen @michaelnadbio.bsky.social · 08/06/2025
@doc-jlmeier.bsky.social got my swag, and now I’m ready for some good science and basketball at the #2025BioorganicGRC. It’s been too long!
070
Reposted by Mike Cohen
Jonathan Pruneda @jnpruneda.bsky.social · 08/06/2025
Lots of exciting work to do at this interface between #ubiquitin and #ADP-ribosylation! In the coming months, @michaelnadbio.bsky.social and I hope to be recruiting new team members to explore this space. Here is a thread of other exciting opportunities to check out!
1102
Mike Cohen @michaelnadbio.bsky.social · 08/06/2025
Yeah, this was definitely a major milestone for her. Amazing come from behind victory!
010
Mike Cohen @michaelnadbio.bsky.social · 05/06/2025
Cool new manuscript by @tafesselab.bsky.social and colleagues revealing a fascinating connection between SARS-CoV-2 infection and host lipid metabolism. Perhaps this opens up new therapeutic opportunities? Congrats!
010
Reposted by Mike Cohen
ahellab.bsky.social @ahellab.bsky.social · 24/05/2025
A postdoc position is available in our lab to study ADP-ribosylation and ubiquitylation signalling! We are looking for someone with experience in structural biology and biochemistry. The application deadline is June 20th. my.corehr.com/pls/uoxrecru...
my.corehr.com
'
11923
Mike Cohen @michaelnadbio.bsky.social · 03/06/2025
Awesome review by Braden Lobingier and colleagues on ways to study compartmentalized GPCR signaling.
043
Reposted by Mike Cohen
Jordan Meier @doc-jlmeier.bsky.social · 03/06/2025
Tagging a few bioorganic aficionados @laurakiessling.bsky.social @carolynbertozzi.bskyverified.social @krishnanyamuna.bsky.social @chembiobryan.bsky.social @chembiohub.bsky.social @pottslab.bsky.social @dannomura.bsky.social @danharki.bsky.social @craigmcrews.bsky.social @ritastrack.bsky.social
152
Mike Cohen @michaelnadbio.bsky.social · 29/05/2025
🤣
000
Reposted by Mike Cohen
Karolin Luger @nucleosomepolice.bsky.social · 29/05/2025
I have had the privilege to train many chinese students over many years. They enriched our lives and did great science. Many are still here and contribute to the US scientific enterprise. The push to revoke student visas is cruel and unnecessary. We must push back. www.npr.org/2025/05/28/g...
npr.org
Rubio says U.S. will 'aggressively' revoke visas for many Chinese students
The announcement to revoke visas is the most drastic move yet to curtail the numbers of international students studying in the U.S.
25016
Mike Cohen @michaelnadbio.bsky.social · 27/05/2025
🤪 yikes! Hope this is the worst of it.
000
Reposted by Mike Cohen
mflangelier.bsky.social @mflangelier.bsky.social · 27/05/2025
Crystal structure and mutagenesis of a nucleic acid-binding BRCT domain in human PARP4 - Journal of Biological Chemistry www.jbc.org/article/S002...
jbc.org
Crystal structure and mutagenesis of a nucleic acid-binding BRCT domain in human PARP4
PARP4 is an ADP-ribosyltransferase typically associated with the cytoplasmic vault organelle. PARP4 has a distinct domain composition relative to other PARP enzymes; however, the N-terminal region of ...
042
Mike Cohen @michaelnadbio.bsky.social · 25/05/2025
This is a profound loss for the scientific community.
010
Reposted by Mike Cohen
The American Journal of Human Genetics @ajhgnews.bsky.social · 23/05/2025
📣New from Palafox et al! 📄Prioritizing disease-associated missense variants with chemoproteomic-detected amino acids
cell.com
Prioritizing disease-associated missense variants with chemoproteomic-detected amino acids
Mass spectrometry-based chemoproteomics can provide a high-throughput assessment of the likely functionality of specific sites on proteins. Here, we show that chemoproteomic measures of protein-based ...
022
Mike Cohen @michaelnadbio.bsky.social · 23/05/2025
Congrats! This is an amazing milestone, Matt.
000