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LEK Lab

@lek-lab.bsky.social
300 followers 231 following 9 posts

Laboratory of Prof. Lewis E. Kay at the University of Toronto | Nuclear Magnetic Resonance of biomolecules | Est. 1992

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Alexander Sever @aimsever.bsky.social · 04/08/2026
Really excited to have my work on the Caspase-11 non-canonical Inflammasome complex published today in @pnas.org! Check it out below 👇 www.pnas.org/doi/10.1073/...
pnas.org
The dynamic and heterogeneous structure of the non-canonical inflammasome | PNAS
Inflammasomes are high-molecular-weight complexes that play integral roles in the innate immune system, triggering an inflammatory cascade to prote...
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Magnetic Resonance News @nmr900.bsky.social · 26/06/2026
Professor Lewis E. Kay @lek-lab.bsky.social University of Toronto/SickKids, has been promoted to Companion of the Order of Canada, the highest level of the Order of Canada, for his pioneering biomolecular NMR research, and training a new generation of scientists www.gg.ca/en/appointme... #NMRchat 🧲
gg.ca
Order of Canada Appointees – June 26, 2026
Companions Michael Andrew Fox, C.C. Burnaby, British Columbia and New York, New York, United States of America
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bioRxivpreprint @biorxivpreprint.bsky.social · 16/04/2026
The dynamic and heterogeneous structure of the non-canonical inflammasome www.biorxiv.org/content/10.64898/20…
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Alexander Sever @aimsever.bsky.social · 16/04/2026
Very excited to share my new pre-print on using NMR to study the non-canonical Inflammasome!
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LEK Lab @lek-lab.bsky.social · 02/12/2025
Jeff & Co. Just finished cooking this up. Give it a read! 👇👇👇👇 www.biorxiv.org/content/10.1...
biorxiv.org
Making invisible excited state protein structures visible by combining NMR and machine learning
NMR relaxation studies of the precursor form of the pro-inflammatory cytokine interleukin-18, pro-IL-18, show that it adopts two sparsely populated (<0.5%) and transiently formed (ms lifetimes) excite...
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Nature Reviews Molecular Cell Biology @natrevmcb.nature.com · 23/11/2025
ICYMI: New Online! The dynamic and heterogeneous composition of biomolecular condensates and its functional relevance
bit.ly
The dynamic and heterogeneous composition of biomolecular condensates and its functional relevance
Nature Reviews Molecular Cell Biology, Published online: 20 November 2025; doi:10.1038/s41580-025-00897-2Biomolecular condensates are non-membrane-encapsulated compartments that control various biological processes. Recent studies have revealed that condensates change in response to stimuli and over time. This Review discusses the heterogeneity and composition changes of nuclear and cytoplasmic condensates, their regulation and how the changes affect cellular biochemical reactions.
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Nature Reviews Molecular Cell Biology @natrevmcb.nature.com · 20/11/2025
New Online! The dynamic and heterogeneous composition of biomolecular condensates and its functional relevance
bit.ly
The dynamic and heterogeneous composition of biomolecular condensates and its functional relevance
Nature Reviews Molecular Cell Biology, Published online: 20 November 2025; doi:10.1038/s41580-025-00897-2Biomolecular condensates are non-membrane-encapsulated compartments that control various biological processes. Recent studies have revealed that condensates change in response to stimuli and over time. This Review discusses the heterogeneity and composition changes of nuclear and cytoplasmic condensates, their regulation and how the changes affect cellular biochemical reactions.
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Magnetic Resonance News @nmr900.bsky.social · 10/11/2025
Solution NMR goes big: Atomic resolution studies of protein components of molecular machines and phase-separated condensates, Alexander I.M. Sever, Rashik Ahmed, Philip Rößler, Lewis E. Kay* @lek-lab.bsky.social @utoronto.ca www.sciencedirect.com/science/arti... #NMRchat 🧲
sciencedirect.com
Solution NMR goes big: Atomic resolution studies of protein components of molecular machines and phase-separated condensates
The tools of structural biology have undergone remarkable advances in the past decade. These include new computational and experimental approaches tha…
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Irina Bezsonova @irinabezsonova.bsky.social · 23/09/2025
Our latest paper is online today ahead of print in PNAS @pnas.org www.pnas.org/doi/10.1073/...
pnas.org
Functional spectrum of USP7 pathogenic variants in Hao–Fountain syndrome: Insights into the enzyme’s activity, stability, and allosteric modulation | PNAS
Hao&ndash;Fountain syndrome is a rare neurodevelopmental disorder caused by mutations in the deubiquitinating enzyme Ubiquitin-Specific Protease 7 (USP7)...
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Chemical Institute of Canada @ciccheminst.bsky.social · 03/09/2025
The CSC and CSChE societies and communities express deep concern over proposed Tri-Council funding cuts. Canada must invest in science to ensure long-term health, innovation, and prosperity. Read the full statement here: buff.ly/peiCUfk
buff.ly
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Magnetic Resonance News @nmr900.bsky.social · 31/08/2025
Journal of Molecular Biology (open) Review Article, Application of NMR to Large RNAs, Brian D. Grossman, Jan Marchant*, Michael F. Summers* www.sciencedirect.com/science/arti... #NMRchat 🧲
sciencedirect.com
Application of NMR to Large RNAs
Heteronuclear NMR methodologies developed over the past 40 years have enabled atomic level insights into the solution-state structure and dynamics of …
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Philip Rößler @roesslph.bsky.social · 31/08/2025
New paper from the Gossert lab: Dynamic interactions in the human β1AR signalling complex with mini-Gs revealed by NMR www.sciencedirect.com/science/arti...
sciencedirect.com
Dynamic interactions in the human β1AR signalling complex with mini-Gs revealed by NMR
A wealth of insights into the mechanisms of GPCRs have been gained from biophysical studies of thermostabilized β1 adrenergic receptors (β1AR) from tu…
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cryoEM papers @cryoempapers.bsky.social · 27/08/2025
Allosteric regulation of proteolytic machines unveiled by the synergy between cryo-EM and solution NMR spectroscopy pubmed.ncbi.nlm.nih.gov/40857152/ #cryoEM
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Biophysical Society @biophysicalsoc.bsky.social · 27/08/2025
Get important feedback from your community and move your work forward. Share your research at #bps2026! Submit an abstract today buff.ly/oOjstk6
biophysics.org
BPS2026 Annual Meeting | Biophysical Society
The BPS2026 Annual Meeting in San Francisco will showcase Biophysics by the Bay, highlighting the exciting advances in science and technology brought forth by big data and AI.  This year’s program…
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Magnetic Resonance News @nmr900.bsky.social · 19/08/2025
How a small lab @cicbiogune.bsky.social led by Óscar Millet, took on one of the world’s rarest diseases www.the-scientist.com/modeling-ang... #NMRnews #NMRchat #NMR 🧲
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HillerLab @hillerlab.bsky.social · 11/08/2025
New paper alert! Stellar work by brilliant lead first author @annaleder.bsky.social together with project leader @masgu.bsky.social reveals a groundbreaking discovery: PDIA6 forms multi-chaperone condensates creating "folding factories" in the ER. www.nature.com/articles/s41...
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Magnetic Resonance News @nmr900.bsky.social · 08/08/2025
Nature Communications (open) Seedless: on-the-fly pulse calculation for NMR experiments, Charles J. Buchanan, Gaurav Bhole, Gogulan Karunanithy, Virginia Casablancas-Antràs, Adeline W. J. Poh, Benjamin G. Davis, Jonathan A. Jones* & Andrew J. Baldwin* www.nature.com/articles/s41... #NMRchat #NMR 🧲
nature.com
Seedless: on-the-fly pulse calculation for NMR experiments - Nature Communications
The authors develop a computational tool to design NMR pulses, based on the GRadient Assisted Pulse Engineering approach, that can calculate optimal pulse shapes on the fly during the measurements, to...
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Sonja Schmid @scisonja.bsky.social · 31/07/2025
#3: #PhD Position on Structure–Dynamics–Function Relationship of the #Chaperone #Hsp90: ➤ NMR spectroscopy for atomic-resolution ➤ Single-molecule FRET for time-resolved dynamics Collab.: @hillerlab.bsky.social & Schmid lab @unibas.ch More info & online application system: tinyurl.com/mr2em3nk
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Sonja Schmid @scisonja.bsky.social · 31/07/2025
💥 We have 3 positions open in my lab in Basel, Switzerland🇨🇭: #nanopores #smFRET #biomolecular #dynamics #singleMolecules We’re looking for talented & ambitious new colleagues enthusiastic about biomolecular dynamics & single-molecule tech. Please share broadly, thank you!🤝 schmid.chemie.unibas.ch
schmid.chemie.unibas.ch
Home | Research Group Schmid | University of Basel
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Magnetic Resonance News @nmr900.bsky.social · 28/07/2025
on behalf of Professor James Keeler (University of Cambridge) considering the possibility of revising the text and creating a third edition : Understanding NMR Spectroscopy, James Keeler - survey concerning a possible third edition cambridge.eu.qualtrics.com/jfe/form/SV_... #NMRbooks #NMRchat #NMR 🧲
book cover
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Nature @nature.com · 31/07/2025
Nature research paper: Diffusing protein binders to intrinsically disordered proteins go.nature.com/4lSCdzE
go.nature.com
Diffusing protein binders to intrinsically disordered proteins - Nature
Using RFdiffusion, a general method for targeting intrinsically disordered proteins and regions for protein design has been developed.
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Kevin Gardner @nmrkaygee.bsky.social · 30/07/2025
Absolutely outrageous interference in NIH extramural funding by OMB dropping this evening. Damaging to our nation’s world leadership, innovation, and training today and for years in the future. www.wsj.com/politics/pol...
wsj.com
Trump Administration Puts New Chokehold on Billions in Health-Research Funding
The National Institutes of Health can’t award grants to outside researchers under a new White House restriction.
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CIC bioGUNE @cicbiogune.bsky.social · 24/07/2025
#bioGUNE_Talent | 👏 Óscar Millet #CICbioGUNE @brtaeus.bsky.social, appointed Vice President of @group-ampere.bsky.social, Europe’s top #NMR organization, the first Spanish scientist to hold this role 🎉 Congratulations, Óscar! 🔗 ow.ly/hxi450Wuwiw
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Daniel Friedrich @friedrichlab.bsky.social · 22/07/2025
Great #NMR work on PTMs of histones by @roesslph.bsky.social and colleagues at @lek-lab.bsky.social!
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LEK Lab @lek-lab.bsky.social · 22/07/2025
Check it out!
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Jon Paczkowski🌹 @paczkowskilab.bsky.social · 16/07/2025
I am (optimistically) looking for a postdoc with solution state biomolecular NMR expertise to join our group. I can provide access to high-end instrumentation and technical assistance via our membership at the New York Structural Biology Center. #nmr #academicsky #postdoc
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Magnetic Resonance News @nmr900.bsky.social · 16/07/2025
Tenure Track Professor of Structural Biology of Emerging Drug Targets at Medical University of Graz www.medunigraz.at/en/job-openi... #NMRjobs #NMRchat #NMR 🧲
medunigraz.at
Tenure track professorships
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Irina Bezsonova @irinabezsonova.bsky.social · 16/06/2025
New publication alert! Using NMR we show how the C-tail of USP7 contributes to its activation by facilitating ubiquitin release. Online today in Journal of Molecular Biology. www.sciencedirect.com/science/arti...
sciencedirect.com
The C-Terminal Tail of Ubiquitin-Specific Protease 7 Facilitates Ubiquitin Release and Ensures Efficient Catalytic Turnover
USP7 is a key ubiquitin-specific protease involved in human development. Its activity is regulated by an intramolecular interaction between the cataly…
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Nicholas Fitzkee @fitzkeelab.bsky.social · 09/06/2025
Good heavens. How are we supposed to do NMR when D2O prices are north of $1,500/L?
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Kevin Gardner @nmrkaygee.bsky.social · 09/06/2025
Please join me and >5000 others in supporting NIH staff in their work supporting US biomedical research! actionnetwork.org/forms/add-na...
actionnetwork.org
ADD YOUR NAME: Sign the Open Letter in Support of NIH Staff
Join the courageous and committed National Institutes of Health (NIH) public servants by adding your name now.
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MP Foster Lab @ The Ohio State University @fosterlab.bsky.social · 28/05/2025
Fun to celebrate inauguration of the National Gateway Ultrahigh Field NMR Center at Ohio State with the 1.2 GHz Bruker Ascend Spectrometer @osuchembiochem.bsky.social #nmr @brukercorporation.bsky.social
Group of scientists cutting red ribbon with large red scissors in front of a large 1.2 GHz NMR instrument.
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Irina Bezsonova @irinabezsonova.bsky.social · 24/05/2025
link.growkudos.com/1e2aa2yse0w USP7 spotlight
link.growkudos.com
How a Key Enzyme Switches On and Off—And How a Rare Mutation Pushes It Into Overdrive
USP7 is an important enzyme whose activity is tightly controlled in cells. Using advanced NMR techniques, researchers gained a rare glimpse into how the enzyme’s movements regulate its function. They ...
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Magnetic Resonance News @nmr900.bsky.social · 05/05/2025
@natchem.nature.com Leveraging relaxation-optimized 1H–13CF correlations in 4-19F-phenylalanine as atomic beacons for probing structure and dynamics of large proteins www.nature.com/articles/s41... #NMRchat #NMR 🧲
nature.com
Leveraging relaxation-optimized 1H–13CF correlations in 4-19F-phenylalanine as atomic beacons for probing structure and dynamics of large proteins - Nature Chemistry
Correlating aromatic carbons attached to fluorine with meta-position hydrogens in fluorine-labelled phenylalanines can yield two-dimensional correlations with narrow linewidths in large proteins. Adap...
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Art Edison @artedison.bsky.social · 05/05/2025
NSF is in trouble. Here is my latest Substack post. Please share. open.substack.com/pub/artediso...
open.substack.com
This is no way to run a bagel shop or a country
Academic science in the US is being gutted by Trump
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vahidilab.bsky.social @vahidilab.bsky.social · 17/04/2025
Two new papers for those interested in intracellular protein degradation, structural biology, and protein biophysics! In particular those interested in AAA+ proteases (ClpP) and the proteasome. www.nature.com/articles/s41... www.pnas.org/doi/10.1073/...
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LEK Lab @lek-lab.bsky.social · 20/04/2025
Check out Nick & @roesslph.bsky.social work on nucleosome electrostatics! More to come shortly 👀 #NMRchat
pubs.acs.org
NMR-Based Measurements of Site-Specific Electrostatic Potentials of Histone Tails in Nucleosome Core Particles
Electrostatics play a dominant role in guiding many biological processes. This is especially the case in the context of chromatin, where charge interactions modulate diverse activities such as DNA rep...
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LEK Lab @lek-lab.bsky.social · 19/04/2025
While Lewis has written many academic papers I think this might be his first opinion piece (?). The US is definitely having its issues, but unfortunately so is Canada. Given that it’s election time let’s hope that the incoming federal government, whoever it is, takes science seriously.
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bioRxiv Biophysics @biorxiv-biophys.bsky.social · 19/03/2025
Learning millisecond protein dynamics from what is missing in NMR spectra www.biorxiv.org/content/10.1101/202…
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Magnetic Resonance News @nmr900.bsky.social · 18/03/2025
Lund University, Sweden, is recruiting an Assistant Professor in Biophysical Chemistry with a focus on NMR Spectroscopy lu.varbi.com/en/what:job/... #NMRjobs #NMRchat #NMR #chemsky 🧲
lu.varbi.com
Assistant Professor in Biophysical Chemistry with a focus on NMR Spectroscopy
The Chemistry Department at Lund University, Faculty of Engineering invites applications for a position as Assistant Professor in Biophysical Chemistry with a focus on NMR Spectroscopy. Description of
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LEK Lab @lek-lab.bsky.social · 22/02/2025
We’ll be there, and so should you!
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John Rubinstein @johnrubinstein.bsky.social · 21/02/2025
After a long and productive career at The Hospital for Sick Children and the University of Toronto, Prof. Charlie Deber has retired. Saw this in his lab space 🥲
Whiteboard cartoon of Dr. Charlie Deber with the message "Thank you for everything !". Artist unknown.
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Gaston Courtade @gcourtade.bsky.social · 18/02/2025
From CERM, Florence: selective aliphatic 1H decoupling in 15N-detected TROSY experiments results in significant increases in sensitivity and resolution for IDPs link.springer.com/article/10.1...
link.springer.com
15N-detected TROSY for 1H-15N heteronuclear correlation to study intrinsically disordered proteins: strategies to increase spectral quality - Journal of Biomolecular NMR
Intrinsically disordered proteins and protein regions are central to many biological processes but difficult to characterize at atomic resolution. Nuclear magnetic resonance is particularly well-suite...
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MP Foster Lab @ The Ohio State University @fosterlab.bsky.social · 17/02/2025
Facing quite a headwind (and what a headwind!), we celebrate the lab's latest paper led by grad student Jon Montgomery and future (somewhere-out-West) grad student Megan Judson pubs.acs.org/doi/10.1021/... @osuchembiochem.bsky.social #biophysics
pubs.acs.org
Protein and DNA Conformational Changes Contribute to Specificity of Cre Recombinase
Cre, a conservative site-specific tyrosine recombinase, is a powerful gene editing tool in the laboratory. Expanded applications in human health are hindered by a lack of understanding of the mechanis...
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Borna Novak @bornanovak.bsky.social · 15/02/2025
Excited to announce the newest member of the flock - STARLING (conSTruction of intrinsicAlly disoRdered proteins ensembles efficientLy vIa multi-dimeNsional Generative models). www.biorxiv.org/content/10.1...
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Kevin Gardner @nmrkaygee.bsky.social · 09/02/2025
NEW YORK NIH AWARDS FUNDING: $3.59 B JOBS SUPPORTED: 29,298 ECONOMIC ACTIVITY SUPPORTED: $7.97 B
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John Rubinstein @johnrubinstein.bsky.social · 24/01/2025
Come be my boss! We're looking for a new Program Head for the Molecular Medicine Program at the Hospital for Sick Children. Toronto, Canada (the deadline has been extended from Jan 31) Please Re-post. jobs.sciencecareers.org/job/667223/p...
jobs.sciencecareers.org
Program Head - Molecular Medicine, The Hospital for Sick Children Research Institute - Toronto (City), Ontario (CA) job with The Hospital for Sick Children (SickKids) Research Institute | 667223
Provide leadership and mentorship to members of the Molecular Medicine Program and influence the scientific direction of the Research Institute
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LEK Lab @lek-lab.bsky.social · 28/01/2025
Congratulations to Lewis for being awarded the Alexander Hollaender Award in Biophysics! (www.nasonline.org/award/alexan...) #NMRchat
nasonline.org
Alexander Hollaender Award in Biophysics – NAS
The Alexander Hollaender Award in Biophysics is presented every three years and carries with it a $20,000 prize. The Award recognizes outstanding contributions made to the field of biophysics. Henriet...
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LEK Lab @lek-lab.bsky.social · 21/01/2025
HOT OFF THE PRESS!! Alex (@aimsever.bsky.social), Rashik (@rashikahmed.bsky.social) & Philip (@roesslph.bsky.social) review recent advances in biomolecular solution NMR and provide an outlook of what the future holds! Check it out here: #NMR #NMRchat
sciencedirect.com
Solution NMR goes big: Atomic resolution studies of protein components of molecular machines and phase-separated condensates
The tools of structural biology have undergone remarkable advances in the past decade. These include new computational and experimental approaches tha…
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Fabien Ferrage @fabferrage.bsky.social · 16/01/2025
Do you want to investigate molecular dynamics with magnetic resonance? We’re organizing two events March 13-19, in Paris: Workshop from fast field cycling to ultra fast high-resolution relaxometry. Training school on high-resolution relaxometry. Check Program and register before Feb. 9 at:
hires-multidyn.chimie.ens.fr
Events - HIRES-MULTIDYN
We invite you to the joint workshop From fast-field cycling to ultrafast high-resolution relaxometry, a joint meeting of the FC-RELAX doctoral network and the HIRES-MULTIDYN project from March 13 to M...
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