We’re recruiting a postdoc to start at the end of this year or early next year! We use cryo-EM to uncover the structural basis of key chromatin events using native complexes isolated from human cells or assembled in Xenopus (frog) egg extracts!

My awesome colleague, @yarimura.bsky.social, is recruiting a postdoc to start at the end of 2026 or early 2027! His lab uses cryo-EM to uncover structural basis of key chromatin events using native complexes isolated from human cells or Xenopus egg extracts! careers-fhcrc.icims.com/jobs/30706/p...

@jhigginswriter.bsky.social wrote an article about my lab and our frog 🐸 at the Hutch! Thank you!

Dr. @yarimura.bsky.social brings frogs back to Fred Hutch after a long absence to study the structure of DNA-linked molecular complexes that change during the cell cycle and malfunction in cancer and other diseases. bit.ly/3J8S5Ae

Looking for your next step in fly genetics? The Rajan Lab at Fred Hutch is hiring a staff scientist + postdoc for projects on fat–brain signals, immunity, and brain aging. Stable, long-term role in a collaborative lab. Apply: careers-fhcrc.icims.com/jobs/30062/j...

My awesome Drosophila colleague Akhila Rajan at Fred Hutch (Seattle) is recruiting both a staff scientist and a postdoc to study fat–brain communication, innate immunity, mitochondrial signaling, and brain senescence. Great team, great environment. Apply here: careers-fhcrc.icims.com/jobs/30062/j...

New online: Computational design of sequence-specific DNA-binding proteins

One more movie! Using the RL algorithm (from pnas.org/doi/10.1073/...), @masaashimazoe.bsky.social analyzed our nucleosome tracking data and classified them by their mobility. Hotter color = faster motion (Slow🔵→ 🟢 → 🟡 → 🟠 Fast)

In new study led by @bdadonaite.bsky.social, we measure how spike mutations affect function & antigenicity of spike of KP.3.1.1 strain of SARS-CoV-2. Sheds light on how key neutralizing epitopes are changing & importance of RBD up/down motion. www.biorxiv.org/content/10.1...

WORK! I currently have 5 (!) open positions for postdocs/PhD students in our CDlab for projects: - Nanopore protein sequencing - Archaeal CDV cell division - Microfluidics for synthetic cells - Nuclear Pore Complex - Origami mimics of peroxisomes Please apply! ceesdekkerlab.nl/come-join-us/ RT=👍

The peer-reviewed VOR for the MagIC-cryo-EM paper by @yarimura.bsky.social‬ and @1001hak.bsky.social‬ is finally published! Congrats Yasu!

 🧬🎉Thrilled to share our new chromatin remodeling study! We reveal three states of human CHD1 and identify a novel "anchor element" that interacts with the acidic patch—conserved among remodelers. Our structures clarify mechanisms of remodeler recruitment! Link: authors.elsevier.com/a/1l2ik3vVUP...

Excited to share our preprint on the molecular architecture of heterochromatin in human cells 🧬🔬w/ @jpkreysing.bsky.social, @johannesbetz.bsky.social, @marinalusic.bsky.social, Turoňová lab, @hummerlab.bsky.social @becklab.bsky.social @mpibp.bsky.social 🔗 Preprint here tinyurl.com/3a74uanv

Ever wondered what the lonely histone H3C110 does? We found that it’s lost in many fungi. Adding it back boosts histone H3 copper reductase activity, rescues iron defects and modulates lifespan, suggesting an evolutionary tradeoff between these effects. www.science.org/doi/10.1126/...

New preprint on 3D heterochromatin architecture in human cells! Great collab with @sergiocruzleon.bsky.social & @johannesbetz.bsky.social from @hummerlab.bsky.social, @marinalusic.bsky.social & the Turoňová lab. Many thanks to my supervisor @becklab.bsky.social. bioRxiv: tinyurl.com/3a74uanv 🧵👇

🔬 New from the Farnung Lab: We established a fully in vitro reconstituted chromatin replication system and report the first cryo-EM snapshots of the human replisome engaging nucleosomes. Brilliant work by @felixsteinruecke.bsky.social with support from @jonmarkert.bsky.social! tinyurl.com/replisome

Our new paper is out@ScienceAdvances👇 www.science.org/doi/10.1126/... 🧬Our Repli-Histo labeling marks nucleosomes in euchromatin and heterochromatin in live human cells. 🔍 @katsuminami.bsky.social et al. have developed a chromatin behavior atlas within the nucleus. 1/2

We quantitatively measured nucleosome motion across the 4 chromatin classes, from euchromatin to heterochromatin. 🧪 More euchromatic regions (i.e., earlier-replicated regions) show greater nucleosome motion. 🎉 Congrats @katsuminami.bsky.social @kakonakazato.bsky.social and all collaborators! 2/2

Proud of this work, led by the amazing Jeannette Tenthorey (now Assistant Professor at UCSF), demonstrating the adaptive power of single indel mutations in host-virus arms races, but a little sad that this is the coda to her amazing postdoc in the Malik & Emerman labs. www.cell.com/cell-genomic...

First post on bsky. We've updated our preprint about the change in the histone H3 variant on chromatin during Zygotic Genome Activation. Thanks to new experiments by Anusha, it seems like our initial, simplistic idea that the embryo "ran out" of H3 was not right. www.biorxiv.org/content/10.1...

In a new Science study, cryo–electron tomography captures the in-cell architecture of the mitochondrial respiratory chain, illuminating how the coordinated action of molecular machines drives life’s fundamental energy conversion. Learn more in this week's issue: scim.ag/3FA3Ygq

Happy that Jon Chen @jonchenjk.bsky.social's cryo-ET and confocal study of RPE-1 chromatin in situ is online www.embopress.org/doi/full/10.1038/s44318-025-00407-2 Congrats also to coauthors Tingsheng Liu, @shujuncai.bsky.social, Cai Tong Ng, Jian Shi and collaborators Weimei Ruan Uttam Surana.

Wonderful visit to @hutchbasicsci.bsky.social today and thanks to @yarimura.bsky.social for hosting and dinner with the always entertaining @suebiggins.bsky.social and @harmitmalik.bsky.social. A day discussing science with amazing people is unbeatable.

My first, first author paper is now on bioRxiv! 🤩 Linker histone H1 is a liquid-like "glue" condensing chromatin, which revises textbooks! 📖✨ biorxiv.org/content/10.1... Huge thanks to my PI, @kazu-maeshima.bsky.social, for supervision. Amazing collab with @rcollepardo.bsky.social’s group!" (1/n)

I am super excited to share that my work at @yifan_ucsf has just been published in Nature🎉 From developing pYC KI system, it was a long journey to understand endogenous protein dynamics. I appreciate the support from FASN team! 🕺Let's dive into the endogenous & dynamic protein world🏊🏄🚣

Researchers at Fred Hutch have discovered an overlooked mechanism driving aggressive breast and brain tumors involving genes so ancient — more than 2 billion years old — that they fly under the radar of standard genetic sequencing methods. 1/9 www.science.org/doi/10.1126/...

Huge congratulations @jbloomlab.bsky.social!

We did a thing... We purified native transcriptional complexes from Drosophila embryos, obtaining +/- stalk Pol II elongation complexes, native nucleosomes, as well as a nucleosome elongation complex. For more details please check out: doi.org/10.1101/2025...

On changes to #NIH indirect rates, there is a law in place that prohibits NIH from making such changes without the approval of Congress. See Division D, Title II Section 224 of The Further Consolidated Appropriations Act, 2024 (Public Law No: 118-47) grants.nih.gov/grants/guide...

Structural Characterization of Native RNA Polymerase II Transcription Complexes and Nucleosomes in Drosophila melanogaster https://www.biorxiv.org/content/10.1101/2025.02.03.636274v1

Check out a fantastic @elife.bsky.social article highlighting @yarimura.bsky.social’s MagIC #cryoEM technique - a method using specialized magnetic beads that makes it possible to study the structure of proteins from dilute samples. elifesciences.org/articles/105...

Exciting new preprint alert! 🚨 The Collepardo lab, teaming up with Huabin Zhou and the Rosen lab we took a deep, high-resolution look into chromatin condensates! [1/6] #Chromatin #MD @rcollepardo.bsky.social @juliamaristany.bsky.social www.biorxiv.org/content/10.1...

Super excited to share our new study from the @jbuenrostro.bsky.social Lab in @nature.com! We developed a computational method for tracking transcription factor and nucleosome binding using single-cell ATAC-seq and deep learning. Paper: www.nature.com/articles/s41...

Pleased to share my thoughts on the new eLife publication model. elifesciences.org/inside-elife...

Hey #teamtomo checkout our #teamscience approach to #cellbio #cryoET I can’t thank @cellarchlab.com enough for this one 😍😍 Awesome team science from @mpibiochem.bsky.social @biozentrum.bsky.social Thermo Fisher Scientific and more #firstpost on Bluesky www.biorxiv.org/content/10.1...

Nice resolution nucleosome cryo-ET🤩

2024 was an amazing year for Basic Sciences @fredhutch.bsky.social, including the opening of the @yarimura.bsky.social Lab, the Pathfinders Postdoc Symposium, a wonderful retreat, many scientific discoveries, and more. Get all the highlights in our annual report: www.fredhutch.org/en/research/...

1/ A new series of #CryoSPARC tutorial videos from this year’s S2C2 #cryoEM image processing workshop are now online! These videos will be interesting to all users and especially those newer to #cryoEM. www.youtube.com/playlist?lis...

The pSABER paper is now online! pSABER is a new method for amplifying in situ hybridization signals This work was driven by Sahar Attar and co-led by Ram Akliesh ([at] podocytes on the other app) with help from @shechnerlab.bsky.social @dschweppe.bsky.social doi.org/10.1038/s415... 🧵 1/12

The latest from our group, led by Megan Ostrowski and @martyyang.bsky.social, is now published in final form (www.cell.com/cell/fulltex...! Many thanks to our excellent peer reviewers for suggesting several experiments (including CAF-1 perturbation) to really improve the study =) #epigenetics

Wow🐸🐸 congratulations! 🎉

Hey Skeeters, A big new batch of our @fnucleosome.bsky.social seminar videos have gone public in the past couple weeks! Here's a thread:

This week's lesson: You never know until you try. You might just discover a hidden talent.

Hello! I’m new here. If you follow me on the other place give me a follow here so I can find you

Don’t forget Xenbase (www.xenbase.org/xenbase/)!! Power to the frog 🐸 #xenopus #frog

Please repost! Arimura Lab is hiring! We are seeking the next generation of MagICians (technicians and a postdoc) to elucidate the structural basis of events on chromosomes🧙‍♀️ No prior structural biology experience is required!! Link research.fredhutch.org/arimura/en/j...

Cryo-EM analysis on magnetic beads for scarce macromolecules in heterogeneous samples https://www.biorxiv.org/content/10.1101/2024.01.21.576499v1