Gunning Group

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205 Following
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Multidisciplinary team of molecular architects using #medicinalchemistry & #molecularrecognition to design better medicines. Led by Prof. Patrick Gunning, Centre for Medicinal Chemistry, University of Toronto Mississauga
#HDAC #STAT3 #STAT5 #MedicinalChemistry #ChemicalBiology #DrugDiscovery #CovalentInhibitors #TargetedProteinDegradation #Chemistry #ChemistryMastodon #ScienceMastodon #Chemiverse #ChemToots
Google Scholarhttps://scholar.google.ca/citations?user=Qoh870sAAAAJ&hl=en
Thrilled to share our #OpenAccess online resource "An Introduction to Medicinal Chemistry & Molecular Recognition" on @OpenLibraryON! We designed this resource to provide budding medicinal chemists with the knowledge & tools to navigate small molecule drug discovery! #OER
https://ecampusontario.pressbooks.pub/medicinalchemistry/
An Introduction to Medicinal Chemistry & Molecular Recognition – Simple Book Publishing

Check out our preprint on an #AI-powered #ligandability prediction platform for bottom-up analysis of #chemoproteomic data to identify #covalent binding sites, including cryptic sites, for the discovery of novel drug targets.
#proteomics #MachineLearning
https://chemrxiv.org/engage/chemrxiv/article-details/658de2e266c13817293b8174
Chemical Proteomics-based Target Prioritization through a Residue Agnostic Ligandability Assessment Platform

The landscape of drug discovery is undergoing a transformative phase with the influx of structural biology and omics data. Identifying optimal drug targets amid this data surge presents a multifaceted challenge. Covalent inhibitors, once undervalued, now hold substantial promise, especially targeted covalent inhibitors (TCIs), effectively engaging 'undruggable' proteins and overcoming resistance mechanisms. Existing ML software can proficiently model covalent ligands but lack comprehensive utility across large chemoproteomics sites. Challenges persist in predicting and assessing cryptic ligandable sites and sites beyond cysteine, demanding advanced computational tools. As cysteine-ligandable proteins represent only ~20% of the quantifiable proteome, there is a requirement for ligandability mapping of other nucleophilic amino acids. This study introduces a pioneering computational pipeline leveraging an AI-based ligandable predictor for meticulous evaluation of chemical proteomics-based reactive sites. The pipeline offers a scalable framework to assess covalent ligandability on a large scale, filter out improbable hits and systematically evaluate potential drug targets. Our work addresses covalent drug design challenges through a pipeline that fills crucial gaps in predicting cryptic ligandable and covalent sites in addition to cysteines to foster more efficient drug discovery methodologies.

ChemRxiv
Thrilled to share our story on the first rationally designed #covalent #HDAC inhibitor! YSR734 uses an SNAr-reactive electrophile to engage a noncatalytic nitrosylation site cysteine in #HDAC2, showing in vitro activity in AML & #DuchenneMuscularDystrophy!
https://pubs.acs.org/doi/10.1021/acs.jmedchem.3c01236

#Job alert! We're #hiring a Laboratory Technician at the Centre for Medicinal Chemistry (#CMC) @UTM !

Join the forefront of small-molecule therapeutic discovery as an integral member of our team!

Learn more and apply by Nov 28 here:
https://jobs.utoronto.ca/job/Mississauga-Laboratory-Technician-ON/575922617/
#labtech #researchjobs

Laboratory Technician

Laboratory Technician

The Centre for Medicinal Chemistry (CMC) at @UTM is hiring an Administrative Assistant! For more information or to apply, read the full job posting here:
https://jobs.utoronto.ca/job/Mississauga-Administrative-Assistant-ON/575276617/
Administrative Assistant

Administrative Assistant

The mystery of @genentech's monovalent BRD degraders equipped with a propargyl "degradation tail" has been solved by researchers @abbvie: a #CRISPR screen reveals molecular glue-like recruitment of #DCAF16.
#TargetedProteinDegradation #MonovalentDegraders
https://pubs.acs.org/doi/full/10.1021/acschembio.2c00747
Adam Gilbert on LinkedIn: A highly selective JAK3 inhibitor is developed for treating rheumatoid…

A highly selective JAK3 inhibitor is developed for treating rheumatoid arthritis by suppressing γc cytokine–related JAK-STAT signal

Granted, the test case is—you guessed it—#BRD4. Nevertheless, this could be an exciting new #TPD modality if it is generalizable to other target proteins, such as those lacking accessible lysines or for which #ubiquitination is slow or inefficient.
And it's wonderful to see that our alumnus Gary Tin and the amazing Georg Winter wrote the News & Views piece on this paper! #gunningalumni
https://www.nature.com/articles/s41589-022-01217-x
CIDE-stepping E3s - Nature Chemical Biology

Small-molecule-mediated targeted protein degradation (TPD) relies on the recruitment of a target protein of interest to an E3 ligase. A new study indicates how direct target recruitment to the 26S proteasome can bypass this requirement.

Nature
An exciting new paper by researchers at Genentech led by Erin Dueber describes a ligase-agnostic #TargetedProteinDegradation platform based on direct 26S proteasome recruitment with macrocyclic PSMD2 ligands! Clever use of the D-enantiomeric macrocycle as an inactive control. These bifunctional ligands deliver target proteins to the 26S proteasome near the AAA+ unfoldase pore, bypassing the requirement for E3 ligase-mediated target ubiquitination prior to degradation!
https://www.nature.com/articles/s41589-022-01218-w
Targeted degradation via direct 26S proteasome recruitment - Nature Chemical Biology

Discovery of macrocyclic ligands to the 19S regulatory particle protein PSMD2 enables the synthesis of heterobifunctional molecules that demonstrate proof-of-concept, targeted degradation of BRD4 through direct engagement of the 26S proteasome.

Nature