Dan Cadden
dnj0.bsky.social
Dan Cadden
@dnj0.bsky.social
Chemical biologist at GSK
Views are my own.
Covalents, microbes, and dogs rule the feed
Reposted by Dan Cadden
🚨Just 2% of the population - under 800,000 people sustained the whole of England's blood supply over the past 12 months

The NHS has put out an urgent call for 200,000 donors to come forward

Book an appointment or register today ❤️🙏👇
blood.co.uk
June 10, 2025 at 7:24 AM
Reposted by Dan Cadden
Our work identifying new covalent inhibitors of Staphylococcus aureus serine hydrolyses from fragment libraries is out! great work from @tulsiupadhyay.bsky.social and our many collaborators, including @christianslentz.bsky.social, @mfellnerlab.bsky.social. #chembio
link.springer.com/article/10.1...
Identification of covalent inhibitors of Staphylococcus aureus serine hydrolases important for virulence and biofilm formation - Nature Communications
Staphylococcus aureus is a leading cause of bacteria-associated mortality worldwide. New tools are needed to both image and treat this pathogen. We previously identified a group of S. aureus serine hy...
link.springer.com
May 30, 2025 at 9:55 PM
Reposted by Dan Cadden
Great @chemrxiv.bsky.social preprint by a team of GSK around @jtbush.bsky.social. They showcase the power of single- and multi-step direct-to-biology approaches by developing a potent, cell-active actylamide inhibitor for WRN helicase. chemrxiv.org/engage/...
March 17, 2025 at 3:00 PM
Reposted by Dan Cadden
Amazing work by @sijiewang.bsky.social and our collaborators is out in JACS today. Interested in covalent inhibitors of protein-protein interactions? Check it out. pubs.acs.org/doi/10.1021/...
Identification of Covalent Cyclic Peptide Inhibitors Targeting Protein–Protein Interactions Using Phage Display
Peptide macrocycles are promising therapeutics for a variety of disease indications due to their overall metabolic stability and potential to make highly selective binding interactions with targets. R...
pubs.acs.org
February 25, 2025 at 2:51 AM
Reposted by Dan Cadden
Come join our lab @crick.ac.uk and KCL - looking for a Chemical Biologist, ideally with experience of assay design, to lead our chemical biology work, collaborating across my group, and driving forward basic and translational projects tinyurl.com/4h732e22 closes 23/2! 24-month post initially
tinyurl.com
February 6, 2025 at 11:47 AM
Reposted by Dan Cadden
A rigorous study of UPS tool compounds for #degrader evaluation is published by Stefan Knapp @thesgc.bsky.social in ACS Chemical Biology! They determine the optimal doses of UPS pathway inhibitors that rescue degradation without displaying off-target activity and toxicity.
dx.doi.org/10.1021/acsc...
Functional Characterization of Pathway Inhibitors for the Ubiquitin-Proteasome System (UPS) as Tool Compounds for CRBN and VHL-Mediated Targeted Protein Degradation
Small molecule degraders such as PROteolysis TArgeting Chimeras (PROTACs) and molecular glues are new modalities for drug development and important tools for target validation. When appropriately opti...
dx.doi.org
January 4, 2025 at 5:07 PM
Reposted by Dan Cadden
Our latest work is out in Nature today! Using smFRET, we directly visualized recruitment of the eIF4F complex to the 5' cap of eukaryotic mRNAs and formation of an activated mRNA. Our findings reveal new and surprising roles for each eIF4F component. 1/3 www.nature.com/articles/s41...
December 11, 2024 at 9:35 PM
Reposted by Dan Cadden
Great paper by the group of @jtbush.bsky.social with first author @harrywilders.bsky.social in @angewandtechemie.bsky.social. They established a direct-to-biology approach to quickly screen covalent protein ligands and advance the covalent hits into a non-covalent inhibitor series. #ChemSky #ChemBio
December 11, 2024 at 9:51 PM
Reposted by Dan Cadden
Thrilled to share a new study from the lab revealing an H3K18ub-H3K9me3 crosstalk mechanism, roles for UHRF1 and its E3 ligase activity in regulating a hierarchy of repressive histone methylation signaling, and a strategy for targeting SUV39H1/H2 to improve DNMT1 inhibitor efficacy! #epigenetics
DNA hypomethylation promotes UHRF1-and SUV39H1/H2-dependent crosstalk between H3K18ub and H3K9me3 to reinforce heterochromatin states
Liu et al. report that DNMT1 inhibition causes transient accumulation of hemi-methylated DNA at CpG islands, which stimulates UHRF1-mediated H3K18ub. This enhances SUV39H1/H2 activity, nucleates new H...
www.cell.com
December 4, 2024 at 3:02 AM
Reposted by Dan Cadden
“RNA condensers” for SGs and your thoughts…
Nice work from the Parker lab!
#RNA #RNAsky
G3BP1 promotes intermolecular RNA-RNA interactions during RNA condensation: Molecular Cell www.cell.com/molecular-ce...
G3BP1 promotes intermolecular RNA-RNA interactions during RNA condensation
Parker et al. demonstrate that some proteins responsible for organizing ribonucleoprotein granules can chaperone intermolecular RNA-RNA interactions in addition to their role in scaffolding. These findings cement RNA-RNA interaction networks as a key component of granules, highlighting the need to further explore the regulation of RNA dynamics within granules.
www.cell.com
December 6, 2024 at 2:19 PM
Reposted by Dan Cadden
Could't think of a better inaugural post here. Very excited to share that our manuscript on the "Discovery and mechanism of K63-linkage-directed deubiquitinase activity in USP53" was published today at Nature Chemical Biology. Congratulations Kim, Kai, and all authors! www.nature.com/articles/s41...
November 25, 2024 at 4:37 PM
Reposted by Dan Cadden
Discovery of CRBN-Dependent WEE1 Molecular Glue Degraders from a Multicomponent Combinatorial Library
Discovery of CRBN-Dependent WEE1 Molecular Glue Degraders from a Multicomponent Combinatorial Library
Small molecules promoting protein–protein interactions produce a range of therapeutic outcomes. Molecular glue degraders exemplify this concept due to their compact drug-like structures and ability to engage targets without reliance on existing cognate ligands. While cereblon molecular glue degraders containing glutarimide scaffolds have been approved for treatment of multiple myeloma and acute myeloid leukemia, the design of new therapeutically relevant monovalent degraders remains challenging. We report here an approach to glutarimide-containing molecular glue synthesis using multicomponent reactions as a central modular core-forming step. Screening the resulting library identified HRZ-1 derivatives that target casein kinase 1 α (CK1α) and Wee-like protein kinase (WEE1). Further medicinal chemistry efforts led to identification of selective monovalent WEE1 degraders that provide a potential starting point for the eventual development of a selective chemical degrader probe. The structure of the hit WEE1 degrader complex with CRBN–DDB1 and WEE1 provides a model of the protein–protein interface and ideas to rationalize the observed kinase selectivity. Our findings suggest that modular synthetic routes combined with in-depth structural characterization give access to selective molecular glue degraders and expansion of the CRBN-degradable proteome.
pubs.acs.org
November 25, 2024 at 1:01 PM
Reposted by Dan Cadden
If you are looking for an exciting PhD in the fields of #ChemicalBiology, #ChemBio, #Proteomics and #Immunology, in a dynamic group with an inspiring PI, Madeline Kavanagh has an open position for a PhD project involving synthesis, chemical proteomics and immunology. drive.google.com/file/d/11Mhm...
November 19, 2024 at 1:26 PM
Reposted by Dan Cadden
📯📯 Chemical Biology starter pack 📯📯
140 PIs & groups posting primary research in chemical biology.

Please reskeet (?) & reply to this post if you want to be added!
go.bsky.app/KLrTWoj

Let's make ChemBioSky even greater again!

#realtimechem #FluorescenceFriday #chemsky #chemtwitter #AgentOrange
November 17, 2024 at 10:58 PM
Issues of polypharmacology in cysteine-reactive cellular screening and delineating these from genuine on-target effects, Keri Backus www.nature.com/articles/s41... #chemsky #proteomics
Delineating cysteine-reactive compound modulation of cellular proteostasis processes - Nature Chemical Biology
A cysteine-reactive degrader of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nonstructural protein 14 (nsp14) was identified, which mediates degradation through electrophile-induced gl...
www.nature.com
November 17, 2024 at 10:59 AM
Reposted by Dan Cadden
November 15, 2024 at 12:37 PM
Reposted by Dan Cadden
Latest data from AllTheBacteria described in our updated preprint. All illumina WGS bacterial+archaeal sequence data to Aug 2024 consistently assembled, QC, and now AMR profiling. That's 2.4 million genomes. Gene annotations almost done , coming next. Please use!

www.biorxiv.org/content/10.1...
AllTheBacteria - all bacterial genomes assembled, available and searchable
The bacterial sequence data publicly available at the global DNA archives is a vast source of information on the evolution of bacteria and their mobile elements. However, most of it is either unassemb...
www.biorxiv.org
November 15, 2024 at 6:59 PM
Reposted by Dan Cadden
Interesting paper by the group of Michael Bollong of Scripps Research in JACS. A high-throughput assay for cysteine-reactive electrophiles based on luciferase activity allows identification of azetidinyl oxadiazoles as cysteine-reactive electrophiles.https://pubs.acs.org/doi/10.1021/jacs.4c05711
November 15, 2024 at 3:27 PM
Reposted by Dan Cadden
For all the newcomers on Bluesky, follow this account for updates on the Virtual ChemBio Talks and already mark your calendars for the 5th Virtual ChemBioTalks on September 30th, 2025, with keynotes @oconnorlab.bsky.social and @craigmcrews.bsky.social.
November 15, 2024 at 3:35 PM