Ci Ji (CJ) Lim

Congratulations!!!

The Structura logo with dates for the workshop listed. The bottom reads "Hosted by SickKids and Structura Biotechnology"

Deadline approaching to register for the @structurabio.bsky.social & @sickkidsto.bsky.social CryoSPARC workshop in Toronto!
Open to all, this is a unique opportunity to learn CryoSPARC from the experts at Structura.
April 30/May, 2026.
For more information and to register:
tinyurl.com/y42pf4wy

It took a while but it’s finally published!

The GAP activity of SEAC (GATOR) is a metabolic switch that allows cells to quickly respond to changes in amino acid levels, both for inhibition and reactivation.

We are looking for Postdoctoral Fellows with expertise in Structural Biology. Expertise in CryoEM/CryoET is required. Come join us in St. Louis to work on some amazing enzyme complexes.
www.antonylab.org/positions.html

APPLY HERE: slu.wd5.myworkdayjobs.com/en-US/Career...

A small polymerase ribozyme that can synthesize itself and its complementary strand The emergence of a chemical system capable of self-replication and evolution is a critical event in the origin of life. RNA polymerase ribozymes can replicate RNA, but their large size and structural ...

How could a simple self-replicating system emerge at the origins of life? RNA polymerase ribozymes can replicate RNA, but existing ones are so large that their self-replication seems impossible. Could they be smaller?

Excited to share our latest work in @science.org on a new small polymerase.
1/n

Congratulations to all authors! Looking forward to reading this beautiful work!

Pre-incision structures reveal principles of DNA nucleotide excision repair - Nature Cryo-electron microscopy structures of nucleotide excision repair complexes reveal the roles of the constituent proteins XPA, XPB, XPC, XPD, XPF, XPG and RPA in DNA bubble formation and excision ...

Our great collaboration with the lab of Wei Yang and Kaoru Sugasawa is now online in Nature. We’re glad we could contribute some cell biology to complement this beautiful structural and biochemical work.

www.nature.com/articles/s41...

High-throughput identification of endogenous biomolecular condensates and phase-separating proteins Nature Protocols, Published online: 12 February 2026; doi:10.1038/s41596-025-01327-5This protocol identifies endogenous biomolecular condensates by combining sucrose density gradient centrifugation with quantitative mass spectrometry, enabling proteome-wide, stimulus-responsive profiling of phase-separating proteins.

New Article! High-throughput identification of endogenous biomolecular condensates and phase-separating proteins

Congratulations, Kelly!!! Well-deserved recognition!! 🎉

Honored to be a finalist for the 2026 Blavanik Awards in the UK in Life Sciences. I’m grateful to past and present lab members, collaborators, colleagues and mentors, who made it possible. It’s even better to share this from
Vietnam while celebrating the Tet holidays with family.

Don’t miss this great work on how RSV virus infects our cells! Congratulations Marvin and team!

Introducing The Structural History of Eukarya (SHE): The first proteome-scale phylogeny constructed entirely from 3D structure.
We computed 300 trillion alignments across 1,542 species to map the tree of life. 🧵👇 (1/5)

Dynamic Binder Exchange Improves Protein Labeling Efficiency in DNA‐PAINT up to 15‐Fold Dynamic Binder Exchange (DyBE) leverages transient binder–target interactions to enhance labeling efficiency by up to 15-fold in super-resolution microscopy. DyBE maps nanoscale receptor tyrosine kin...

Up to 15-fold improvement in protein labeling for DNA-PAINT 🧬🔬. We are excited to present our latest work published in @angewandtechemie.bsky.social!
onlinelibrary.wiley.com/doi/10.1002/...

Live-cell single-molecule dynamics of eukaryotic RNA polymerase machineries Eukaryotic gene expression is orchestrated by RNA polymerases (RNAPI, II, and III) and associated factors, yet their real-time dynamics remain obscure. Using single-molecule tracking in living yeast, ...

🧬🔬🎥 @science.org Live-cell single-molecule dynamics of eukaryotic RNA polymerase machineries | Science www.science.org/doi/10.1126/...

Please share: we're hiring a new tenure-track faculty member to our Department of Genetics at Albert Einstein College of Medicine.

faculty-einstein.icims.com/jobs/17847/a...

A high-resolution, easy-to-build light-sheet microscope for subcellular imaging An accessible light-sheet microscope delivers subcellular-resolution, multicolor volumetric, and live-cell imaging, lowering barriers to state-of-the-art performance.

In @elife.bsky.social: A high-resolution, easy-to-build light-sheet microscope for subcellular imaging doi.org/10.7554/eLif...

Exciting news! The lab is moving to Colorado at @cuanschutz.bsky.social 🎉
We’ll be recruiting at all levels—stay tuned!

People sitting on stairs discussing a project. Text highlighting the next EMBO Lab Leadership for Scientists in the Americas live online course running on17-20 March 2026 still has places available.

Based in the #Americas? @embo.org Lab #Leadership live online training for #scientists on 17-20 March (NY time). Take time to focus on, and tune up, your interpersonal skills and discover tools to support you and your team's development. Sign up now: www.embolableadership.org/course/embol...

DOT1L provides transcriptional memory through PRC1.1 antagonism - Nature Cell Biology Neville, Ferguson et al. show that non-canonical Polycomb repressive complex 1.1-mediated gene silencing is antagonized by DOT1L and is required for the therapeutic efficacy of Menin and DOT1L inhibit...

H3K79me2/3 is sufficient to antagonise PRC1 www.nature.com/articles/s41...

My outstanding postdoc is looking for a research job in Albany, NY. Please forward all leads and RT!

📣 We are accepting applications for the 2026 Boston Bioimage Analysis Course (BoBiAC): bobiac.github.io! Join us this July at Harvard Medical School for a 6-day intensive hands-on course to learn bioimage analysis with Python!
Apply by May 18th! No prior Python experience required!
🧫->🔬->💻->📊

📣 The 2026 Midwest DNA Repair Symposium is coming to Kansas City (registration is open)

🗓 May 30–31, 2026

✨ Talks will be selected from abstracts, with a strong focus on trainees and new investigators.

Please RT & share with your labs!
🔗 sites.google.com/view/kumc-mi...

Karolin Luger - Vilcek Foundation Karolin Luger's research led to the capture of a high resolution image of chromatin, resulting in the development of innovative drug treatments for diseases like cancer.

Unquestionably the result of combined effort from all current and former lab members, support from colleagues @CSU and @CU, and support from @hhmi-science.bsky.social and NIH over decades. A heartfelt 🙏 to my nominators and of course @vilcekfoundation.bsky.social.
vilcek.org/prizes/prize...

Big congratulations to Karolin!!! 👏🏻🤩

This just in. So honored and grateful...

Resurrecting Ancient Enzymes in NASA's Search for Life Beyond Earth - NASA Science NASA-supported scientists have resurrected an enzyme first used by organisms on Earth 3.2-billion years ago and, in the process, have validated a chemical

Check out NASA’s new press release on how we recreated a molecule used by some of Earth’s earliest life forms, helping us understand how life began here and how we might spot signs of life on other planets! Big congrats to first author, @hollyrucker.bsky.social!

science.nasa.gov/science-rese...

A rule I follow when reviewing cryo-EM manuscripts: if a claim relies on the orientation or interactions of a side chain, the evidence supporting the claim (ie the map density) must be shown.

In general, reviewers are responsible for ensuring claims in manuscripts are supported by data.

Happy new year! We have some exciting news, the registration and abstract submissions for the 22nd Nucleic Acids Forum 2026 are now open! Join us on the 10th of July at Burlington House!
Hurry before it sells out! 🧬
www.rsc.org/events/detai...

Staff Scientist – Cryo-EM Unit, Ben-Gurion University of the Negev

The IKI at Ben-Gurion University is looking for a Staff Scientist to join our CryoEM Unit.

If you’re passionate about #SPA and #CryoET, this is a rare opportunity to work in an amazing environment with top-tier science and even better collaborators (myself […]

[Original post on tooot.im]

Header image with the paper title: "Improved in vivo gene knockout with high specificity using multiplexed Cas12a sgRNAs"

Make your gene knockouts more efficient with multiplexed Cas12a sgRNAs. Our new paper is out now, with tools available from @addgene.bsky.social , www.plasmids.eu and @vdrc-flies.bsky.social.

www.nature.com/articles/s41...

#CRISPR #geneediting #Drosophila 🧪🧬✂️🔬🪰

Summary 🧵 below.