Wiseman Lab

Pharmacological Inhibition of SLC33A1 Promotes Endoplasmic Reticulum Hyperoxidation and Induces Adaptive IRE1/XBP1s Signaling https://www.biorxiv.org/content/10.64898/2026.02.17.706344v1

SLC33A1 exports oxidized glutathione to maintain endoplasmic reticulum redox homeostasis https://www.biorxiv.org/content/10.64898/2026.02.01.703113v1

New preprint from @kutseikin.bsky.social showing how pharmacologic inhibition of SLC33A1 activates IRE1/XBP1s signaling. w/ @enriquesaez.bsky.social @chrisgparker.bsky.social @landerlab.bsky.social @forlilab.bsky.social & the Birsoy lab (Rockefeller) Check it out👇

www.biorxiv.org/content/10.6...

One review. Many journals. Less redundancy. Check out this conversation with our head Dr. Thomas Lemberger on the vision behind @reviewcommons.org and what it means for authors and journals alike @embopress.org @embo.org
www.embo.org/people/revie...

De novo design of protein binders that target DELE1 to inhibit the mitochondrial stress response https://www.biorxiv.org/content/10.64898/2025.12.22.695711v1

JCB’s Cover of the Year voting is open!
I’ll just say… they are all gorgeous, but April has my heart 😍❄️🔬

#teamtomo @attychang.bsky.social

Self-renewal of neuronal mitochondria through asymmetric division Mitochondrial ATP production is essential for life. Mitochondrial function depends on the spatio-temporal coordination of nuclear and mitochondrial genome expression, yet how this coordination occurs ...

⚡️Mitochondria make ATP, the energy that powers life. But in neurons, with axons up to a meter long, how do these tiny power plants stay functional in the right places? We went looking. 1/n www.biorxiv.org/content/10.6...

How disabling one gene protects mice against Type 1 diabetes UW–Madison researchers have discovered a mechanism that could one day help people at risk of developing the metabolic disease.

In collaboration with @enginlab.bsky.social, Khahani Eynullazada, a grad student from @sroyyors.bsky.social Lab identified gene regulatory networks capturing shared and perturbation-specific stress pathways in Type 1 diabetes using GRN inference tools on scRNA-seq data from in vivo mouse models.

Schedule of speakers for the Endoplasmic Reticulum Minisymposium speakers on Dec 10 9-11 AM at the Cell Bio 2025 conference.

If you're at #CellBio2025, please join us tomorrow at 9AM in Room 122 for a fantastic speaker lineup at the #EndoplasmicReticulum Minisymposium!

Immediately following our session will be the keynote presentations by Eva Nogales & Jennifer Lippincott-Schwartz!

@ascbiology.bsky.social

#CellBio2025

This Wednesday, Dec 10 at 9:00 AM in Room 122

Please add it to your schedule!

Postdoc (m/f/x) Our Research Group led by Janine Kirstein, Professorin at Friedrich-Schiller-University Jena, is looking for a highly motivated and talented Postdoctoral Researcher (m/f/x) to join a research project ...

Postdoc position available in my lab in Jena (Germany.
jobs.leibniz-fli.de/jobposting/6...
If you're interested in protein biochemistry of amyloid proteins and chaperones, this job may be for you. B2 Level German is required as the candidate will be involved in teaching in German.

Scripps is conducting a tenure track assistant professor search. This is a broad search across multiple departments for outstanding individuals that could integrate into the multi-disciplinary environment at Scripps Research. All interested should apply! Please share. apply.interfolio.com/174756

I had a great visit with a lot of old (long time not age!) and new friends!

🚨 #teamtomo!🚨
Did you know there's a dedicated cryoEM/ET Mini-Symposium at the upcoming ASCB/EMBO meeting in Philly (Dec 6–10)??

Thrilled to share a new preprint! 📝 🎉 Lewis lab PhD student Casadora wondered: Do mtDNA synthesis and lipid droplet biogenesis co-occur at the same membrane contact sites? Or can we discern distinct ER-mito contact classes? Evidence suggests the latter, relevant in overnutrition!

Drug Repurposing Screen Identifies an HRI Activating Compound that Promotes Adaptive Mitochondrial Remodeling in MFN2-deficient Cells Pathogenic variants in the mitochondrial outer membrane GTPase MFN2 cause the peripheral neuropathy Charcot-Marie-Tooth Type 2A (CMT2A). These mutations disrupt MFN2-dependent regulation of diverse as...

New work from the lab (w/ @preronabora.bsky.social @mashiatzaman.bsky.social @mitomorph.bsky.social @nanigrotjahn.bsky.social) identifying a compound that activates OMA1-DELE1-HRI signaling to induce mitochondrial remodeling in MFN2-deficient cells. Check it out 👇
www.biorxiv.org/content/10.1...

During RESET, misfolded GPI-APs traffic from the ER to the Golgi. Top left : Time-lapse imaging sequence collected immediately after thapsigargin (TG) treatment of a typical YFP-PrP * NRK cell that was co-expressing ER-marker, Cerulean-calnexin (CER-CNX). Scale bar represents 10 µm. Top right: Plot of the average Pearson’s r values between YFP-PrP * and CER-CNX for 9 individual cells across the 0 and 20 min time points of time-lapses collected after addition of TG. Bottom left: Time-lapse imaging sequence collected immediately after TG-treatment of a typical YFP-PrP * NRK cell that was co-expressing the Golgi marker, CER-GalT. Scale bar represents 10 µm. Bottom right: Plot of the average Pearson’s r values between YFP-PrP * and CER-GalT for 10 individual cells across the 0 and 20 min time points of time-lapses collected after addition of TG.

TMED9 mediates export of misfolded #prion proteins from the ER. @pskcellbio.bsky.social &co show that TMED9 also helps capture #misfolded GPI-anchored proteins that are released by calnexin in the ER and moved into the Golgi for degradation via the RESET pathway @plosbiology.org 🧪 plos.io/44kURu5

I know print journals aren't exactly on everyone's radar these days, but we’re still geeking out that our latest study—led by the brilliant @attychang.bsky.social—landed the cover of the April issue of JCB! 🤩

@zidlab.bsky.social @tomo.science @hamid13r.bsky.social

Nobel laureate: I owe America my success. Today, its scientific future is in danger | CNN Dr. Ardem Patapoutian says he watches “with deep sadness as the United States’ remarkable scientific enterprise, which took generations of hard work and national investment to build, faces a concerted...

Published an op-ed for @cnn.com: “Nobel laureate: I owe America my success. Today, its scientific future is in danger.”
A personal reflection on what’s at stake as science funding gets slashed. I’d be grateful if you could amplify both in and beyond the science world.
www.cnn.com/2025/04/09/h...

🚨 The April 13 deadline to submit abstracts for short talk consideration is coming up fast!

Trainees and early-career researchers—don’t miss your chance to present your work and be eligible for talk and poster prizes at @faseborg.bsky.social
#FASEB2025 #ERSRC

New work from Zaman et al., in the Shutt Lab @mitomorph.bsky.social, describes a novel variant in MFN2 linked to mtDNA-mediated inflammation and muscle myopathy
www.life-science-alliance.org/content/8/6/...

…your poor student…🤣

A BiP-centric view of endoplasmic reticulum functions and of my career After completing my post-doctoral training at the University of Alabama, Birmingham and a brief period on the faculty there, I joined the Department o…

Fantastic article from Linda Hendershot—an incredible scientist and one of the most supportive and inspiring researchers I've had the pleasure of meeting.
www.sciencedirect.com/science/arti...

Opinion: Science funding cuts are based on flawed logic. Here’s the truth. Earlier this month, the National Institutes of Health issued supplemental guidance indicating it would immediately impose a 15% cap on indirect costs for research grants, an unprecedented and abrup…

OpEd by @scripps.edu Pres. Pete Shultz: "the consequences would extend beyond Scripps Research, threatening the broader San Diego life sciences ecosystem, which contributes over $27 billion to the regional economy and supports tens of thousands of jobs."
www.sandiegouniontribune.com/2025/02/25/o...

Past few weeks of Unfolded Protein Response papers! #ERStress @biomednews.bsky.social
biomed.news/bims-unfpre/...
biomed.news/bims-unfpre/...
biomed.news/bims-unfpre/...

Very happy to share the latest preprint from my lab led by Kaylee Vosbigian @kaylee-vosbigian.bsky.social ! We found that Anaplasma activates the ATF6 branch of the unfolded protein response in Ixodes ticks to facilitate cholesterol uptake for growth and survival. #MicroSky #Anaplasma #ticks

Excited to be involved in this cool project led by @yananchenlab.bsky.social and her team showing protection afforded by the ATF6 activator AA147 in a mouse model of multiple sclerosis. Check it out! 👇

Cellular Function of a Biomolecular Condensate Is Determined by Its Ultrastructure Biomolecular condensates play key roles in the spatiotemporal regulation of cellular processes. Yet, the relationship between atomic features and condensate function remains poorly understood. We stud...

1/ 🚨We’re thrilled to share our latest study:

"Cellular Function of a Biomolecular Condensate Is Determined by Its Ultrastructure" 🌟

www.biorxiv.org/content/10.1...

How do biomolecular condensates achieve their cellular roles? It comes down to their internal structure. 🧵⬇️

A huge week for Prakhyat, our joint @scripps.edu student with the @wisemanlab.bsky.social! He was awarded an AHA earlier in the week and today he passed his PhD candidacy exam! Because Prakh is so chill, we celebrated with chocolate-coffee liquid nitrogen ice cream. 😎

Congrats to our amazing @scripps.edu grad student Prakhyat Mathur (joint with @wisemanlab.bsky.social) for being awarded a predoctoral fellowship from the AHA @americanheart.bsky.social. Prakh will be investigating how mitochondrial stress activates the integrated stress response. Well-earned Prakh!