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Satpal (Sati) Jhujh

@drjhujh.bsky.social
776 followers 698 following 19 posts

Interested in all things DNA Replication, DNA repair and human disease!

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Reposted by Satpal (Sati) Jhujh
The EMBO Journal @embojournal.org · 07/05/2026
SLX4IP acts as a genome-wide brake on BLM helicase activity to preserve replication fork stability under stress – both globally and at ALT telomeres Stephanie Panier @spanier55.bsky.social, Kavi Mehta @k4v1.bsky.social and coworkers link.springer.com/article/10.1...
link.springer.com
SLX4IP limits replication stress globally and at ALT telomeres - The EMBO Journal
Faithful DNA replication is essential for genome stability, yet replication forks face constant stress. The Bloom syndrome helicase (BLM) safeguards fork integrity, but excessive BLM activity can itse...
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Reposted by Satpal (Sati) Jhujh
Chowdhury Lab @chowdhurylab.bsky.social · 16/04/2026
Out today in @cp-molcell.bsky.social! We show that proximal polyadenylation site (pPAS) within MRE11 sustains its transcription through promoter–PAS chromatin looping. Congratulations to first author Kaimeng Huang, all co-authors and collaborators. www.sciencedirect.com/science/arti...
sciencedirect.com
MRE11 proximal polyadenylation site-mediated looping impacts transcription and genomic stability
Alternative polyadenylation (APA) generates transcript isoforms with variable 3′ untranslated regions (UTR) lengths, yet its role in DNA damage respon…
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Satpal (Sati) Jhujh @drjhujh.bsky.social · 02/01/2026
Signed up to X again to cross post publications etc. Went to follow folks I used to follow on there account suspended for inauthenticity... 🤦🏽 Guess I won't be going back to X then 🤣
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Reposted by Satpal (Sati) Jhujh
Tatiana Moiseeva @tat1anamoiseeva.bsky.social · 18/12/2025
Ever wondered how TIMELESS/TIPIN can sit at the leading edge of the replication fork regulating its speed, but also bind polymerases and ssDNA/RPA in replication stress? We have an idea how it might work! Check out our new preprint, any feedback is highly appreciated! www.biorxiv.org/content/10.6...
a model for TIMELESS positions at the active fork: one complex sits at the leading edge of the fork, while the other one is on the lagging strand ssDNA/RPA, between the Okazaki fragments
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Satpal (Sati) Jhujh @drjhujh.bsky.social · 19/12/2025
So proud to have co-authored this paper with @sorenhough.bsky.social identifying mutations in MAEA, an E3 ligase, as underlying a novel disease resulting from defective HR-dependent replication fork protection/restart 🥳 Grateful to everyone that contributed, incl. the patients & their families!
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Reposted by Satpal (Sati) Jhujh
CortésLab @corteslab.bsky.social · 04/10/2025
Kickstarting our Bluesky🦋 account with great news! Our REPAIRome study finally out today in @science.org www.science.org/doi/10.1126/...
science.org
A comprehensive genetic catalog of human double-strand break repair
The analysis of DNA sequence outcomes provides molecular insights into double-strand break (DSB) repair mechanisms. Using parallel in-pool profiling of Cas9-induced insertions and deletions (indels) w...
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Reposted by Satpal (Sati) Jhujh
Alberto Marin @albertomarin.bsky.social · 04/12/2025
Thrilled to share that my postdoc research is published today in @science.org! We found that DNA repair uses cohesin complexes to build new chromatin loops that guide the homology search and boost accurate repair! 1/n www.science.org/doi/10.1126/...
science.org
Cohesin drives chromatin scanning during the RAD51-mediated homology search
Cohesin folds genomes into chromatin loops, the roles of which are under debate. We found that double-strand breaks (DSBs) induce de novo formation of chromatin loops in human cells, with the loop bas...
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Reposted by Satpal (Sati) Jhujh
Alison Harrod @alison-harrod.bsky.social · 05/12/2025
Our new review, looking into the roles of SWI/SNF in the chromatin environment around centromeres, is just out in Open Biology! @kezlane.bsky.social @thedownslab.bsky.social
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Reposted by Satpal (Sati) Jhujh
MRC Laboratory of Molecular Biology @mrclmb.ac.uk · 31/03/2025
How do SMC complexes capture DNA? 🧪 Led by Frank Bürmann, Jan Löwe’s & Mark Dillingham’s groups have identified the directional loading mechanism the bacterial SMC complex MukBEF uses to capture & ingest DNA, & found a phage inhibitor to this pathway. Read more: tinyurl.com/4s8nrrkk #LMBResearch
Schematic illustrating the structural changes undergone by MukBEF SMC complex during DNA capture and ingestion.
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Reposted by Satpal (Sati) Jhujh
Luke Greenhough @lukegreenhough.bsky.social · 07/11/2025
Excited to share our discovery of the RAD51 filament cap, built by a newly identified RAD51 paralog complex 🔬🧬
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Reposted by Satpal (Sati) Jhujh
stapleslab.bsky.social @stapleslab.bsky.social · 22/10/2025
New preprint from the lab for any DNA repair or replication stress geeks out there! www.biorxiv.org/content/10.1...
biorxiv.org
A nuclease-driven mechanism of post-replicative ssDNA gap suppression.
The persistence of post-replicative ssDNA gaps following PRIMPOL-mediated replication repriming is linked to chemosensitivity, and in all models reported to date the nuclease MRE11 has been implicated...
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Reposted by Satpal (Sati) Jhujh
Basil Greber @bjgreber.bsky.social · 16/10/2025
Now out in Science! Cyclin-dependent kinases (CDKs) are key regulators of the cell cycle. In @vcushing.bsky.social's magnum opus, we use #cryoEM to figure out how the CDK-activating kinase recognises CDKs to fully activate them - a key step in cell cycle control. www.science.org/doi/10.1126/...
science.org
Structural basis of T-loop–independent recognition and activation of CDKs by the CDK-activating kinase
Cyclin-dependent kinases (CDKs) are prototypical regulators of the cell cycle. The CDK-activating kinase (CAK) acts as a master regulator of CDK activity by catalyzing the activating phosphorylation o...
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Reposted by Satpal (Sati) Jhujh
Sandra Segura-Bayona @ssegurabayona.bsky.social · 07/10/2025
🧬 Preprint alert! "Distinct ATRX functions cooperate with 9-1-1 and CST complexes to safeguard replication and telomere integrity." Read the manuscript here 👉 www.biorxiv.org/content/10.1...
biorxiv.org
Distinct ATRX functions cooperate with 9-1-1 and CST complexes to safeguard replication and telomere integrity
Mutations in the ATRX chromatin remodeller predispose to a developmental genetic disorder and cancer, but how it safeguards genome and telomere stability remains unresolved. Here, we uncover critical ...
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Science Magazine @science.org · 30/09/2025
"… as I helped this bright young scholar rediscover hope in her journey, I rediscovered my own." #ScienceWorkingLife scim.ag/473CI43
A conceptual illustration of two people talking against background of leafless trees with green vines growing inside them. Text reads: How I confronted my growing cynicism about academia—and rekindled my sense of purpose.
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Reposted by Satpal (Sati) Jhujh
Yasu Daigaku @yasudaigaku.bsky.social · 12/09/2025
Our preprint on Pol-η usage during genome replication has been uploaded. It addresses the biased use of Pol-η in the lagging strand and late-replicating regions, which may be correlated with cancer mutagenesis. www.biorxiv.org/content/10.1...
biorxiv.org
Strand- and replication timing-dependent functions of DNA polymerase η in human DNA replication and mutagenesis.
Efficient eukaryotic DNA replication relies on the coordinated actions of replicative and error-prone polymerases, with the latter providing flexibility at the cost of mutagenesis. DNA polymerase η (P...
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Reposted by Satpal (Sati) Jhujh
bioRxiv Molecular Biology @biorxiv-molbio.bsky.social · 10/09/2025
DDIAS is a single-stranded DNA-binding effector of the TOPBP1-CIP2A complex in mitosis www.biorxiv.org/content/10.1101/202…
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Reposted by Satpal (Sati) Jhujh
Elphege Nora Lab at UCSF @elphegenoralab.bsky.social · 16/08/2025
New preprint with @gfudenberg.bsky.social We find the rate of cohesin loop extrusion in cells is set by NIPBL dosage and tunes many aspects of chromosome folding. This provides a molecular basis for NIPBL haploinsufficiency in humans. 🧵👇 www.biorxiv.org/content/10.1...
biorxiv.org
NIPBL dosage shapes genome folding by tuning the rate of cohesin loop extrusion
Cohesin loop extrusion is a major driver of chromosome folding, but how its dynamics are controlled to shape the genome remains elusive. Here we disentangle the contributions of the cohesin cofactors ...
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Reposted by Satpal (Sati) Jhujh
Uli Rass @u-rass.bsky.social · 03/09/2025
My first post on bsky to share our latest research in @nature.com: “DNA2 enables growth by restricting recombination-restarted replication” - defines DNA2’s essential function & elucidates links with primordial dwarfism and cancer. Thanks to the lab, collaborators & @ukri.org @acmedsci.bsky.social
nature.com
DNA2 enables growth by restricting recombination-restarted replication - Nature
DNA2 suppresses recombination-restarted replication and checkpoint activation at stalled forks, and its loss triggers recombination-dependent synthesis, checkpoint signalling and cell-cycle exit, high...
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Reposted by Satpal (Sati) Jhujh
Andrew Deans @genomestability.bsky.social · 15/05/2025
Some seriously nice biochemistry and cryo-EM of FAN1-PCNA-flapDNA complexes! www.nature.com/articles/s41...
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Reposted by Satpal (Sati) Jhujh
bioRxiv Molecular Biology @biorxiv-molbio.bsky.social · 15/05/2025
Slow RNAPII elongation enhances naive-pluripotency rewiring while preserving replication fork speed www.biorxiv.org/content/10.1101/202…
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Reposted by Satpal (Sati) Jhujh
Deegan Lab @deeganlab.bsky.social · 15/04/2025
3rd edition of the fantastic UK DNA replication meeting is happening next September in Edinburgh. Don't miss out 🧬🏴󠁧󠁢󠁳󠁣󠁴󠁿 www.biochemistry.org/events-and-t...
biochemistry.org
UK DNA Replication Meeting 2026
Research in the DNA replication field is progressing at a remarkable rate. Technological innovations in biochemical reconstitution, structural biology, proteomics and DNA sequencing are helping to rap...
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Satpal (Sati) Jhujh @drjhujh.bsky.social · 14/04/2025
🎉 Congratulations! Great to see this out in print! 👏
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Reposted by Satpal (Sati) Jhujh
stapleslab.bsky.social @stapleslab.bsky.social · 24/03/2025
Pls repost. Postdoc role on post-replicative ssDNA gap processing. Interesting models that should float replication aficionados boats. DM or c.staples@bangor.ac.uk for info. Until Dec26 but will strive for funding to provide continuity. Fantastic place to live+work www.jobs.ac.uk/job/DMG682/r...
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Reposted by Satpal (Sati) Jhujh
altmeyerlab @altmeyerlab.bsky.social · 18/03/2025
How are chromosome breaks repaired and how is their repair influenced and facilitated by nuclear and genome dynamics? Fantastic initiative and collaboration with @karimmekhail.bsky.social, @chiololab.bsky.social, and @lablegube.bsky.social. @natrevmcb.bsky.social Link to article: rdcu.be/edViW
rdcu.be
Nuclear and genome dynamics underlying DNA double-strand break repair
Nature Reviews Molecular Cell Biology - Changes in nuclear and genome organization promote the repair of DNA double-strand breaks and genome stability. Processes that are involved include the...
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Reposted by Satpal (Sati) Jhujh
James Dewar @jamesmdewar.bsky.social · 10/03/2025
🧬⛓️‍ Our latest preprint examines the fate of collapsed forks in vertebrates 🐸 and our colleagues in @heathmurraylab.bsky.social asked similar questions in bacteria 🦠 to reveal how evolution shapes the response to fork collapse (see🧵) www.biorxiv.org/content/10.1... www.biorxiv.org/content/10.1...
biorxiv.org
Resolution of collapsed forks is separate from completion of DNA synthesis
Replication fork collapse at single-strand DNA breaks (SSBs) poses a serious threat to genome stability. Using Xenopus egg extracts, we show that a replication fork encountering an SSB on either the l...
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Reposted by Satpal (Sati) Jhujh
bioRxiv Cancer Bio @biorxiv-cancer.bsky.social · 28/01/2025
TRIP13 protects pancreatic cancer cells against intrinsic and therapy-induced DNA replication stress www.biorxiv.org/content/10.1101/202…
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Reposted by Satpal (Sati) Jhujh
bioRxiv Cell Biology @biorxiv-cellbio.bsky.social · 20/01/2025
Telomeric SUMO level influences the choices of APB formation pathways and ALT efficiency www.biorxiv.org/content/10.1101/202…
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Reposted by Satpal (Sati) Jhujh
Max-Planck-Gesellschaft @maxplanck.de · 16/01/2025
Okay, the list is far from complete, but it is a first attempt.☺️Here you can find our starter pack on #research organizations and #academies, in #Germany and worldwide. Who else do you think should be included? go.bsky.app/DGGtVu6
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Cees Dekker @ceesdekker.bsky.social · 16/01/2025
New discovery from our #CDlab reported in Cell @cp-cell.bsky.social today: SMC motor proteins have a left-right ‘gearbox’ and can switch direction in DNA loop extrusion! www.sciencedirect.com/science/arti... 1/
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bioRxiv Cell Biology @biorxiv-cellbio.bsky.social · 13/01/2025
The PST repeat region of MDC1 is a tunable multivalent chromatin tethering domain www.biorxiv.org/content/10.1101/202…
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Reposted by Satpal (Sati) Jhujh
bioRxiv Cell Biology @biorxiv-cellbio.bsky.social · 12/01/2025
Identification of critical factors of the replication stress response in human cells www.biorxiv.org/content/10.1101/202…
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Reposted by Satpal (Sati) Jhujh
Tatiana Moiseeva @tat1anamoiseeva.bsky.social · 10/01/2025
Fascinating paper! No G2/M checkpoint for under-replicated cells! academic.oup.com/nar/article/...
academic.oup.com
Cell cycle progression of under-replicated cells
Abstract. Cell cycle checkpoints are the regulatory mechanisms that secure the strict order of cellular events for cell division that ensure genome integri
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Ester Hammond @hammond-lab.bsky.social · 03/01/2025
Great start to 2025. Tumor hypoxia promotes immune evasion by autophagy-mediated downregulation of MHC class I expression leading to reduced antigen presentation. Great work from @halaestephan.bsky.social www.embopress.org/doi/full/10....
embopress.org
Hypoxia promotes tumor immune evasion by suppressing MHC-I expression and antigen presentation | The EMBO Journal
imageimageHypoxia contributes to cancer resistance to both standard therapies and immunotherapy. This work demonstrates that tumor hypoxia promotes immune evasion by autophagy-mediated downregulation ...
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Reposted by Satpal (Sati) Jhujh
Grant Stewart @profstewartlab.bsky.social · 06/01/2025
Great paper about p38 and endometrial cancer from a long-term collaborator and friend, Cyrus Vaziri, just published in Cell Reports: www.cell.com/cell-reports...
cell.com
MAPK14/p38α shapes the molecular landscape of endometrial cancer and promotes tumorigenic characteristics
Using unbiased CRISPR-Cas9-based genetic screens, Joseph et al. identify MAPK14/p38α as a dependency and vulnerability of high-grade endometrial cancer (HGEC) metastatic spheroids. MAPK14/p38α critically programs the phosphoproteome, transcriptome, and metabolome of HGEC spheroids, promoting cancer stemness and tumorigenicity.
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Néstor García-Rodríguez @nestorgarciarod.bsky.social · 06/12/2024
Our last article about ssDNA gaps and BRCA1 👇🏻👇🏻 doi.org/10.1093/nar/...
doi.org
EXO1 and DNA2-mediated ssDNA gap expansion is essential for ATR activation and to maintain viability in BRCA1-deficient cells
Abstract. DNA replication faces challenges from DNA lesions originated from endogenous or exogenous sources of stress, leading to the accumulation of singl
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Reposted by Satpal (Sati) Jhujh
Drew Berry wehi.tv @drewberry.bsky.social · 04/12/2024
Delighted to publish my new molecular animation: DNA Break Repair by Homologous Recombination youtu.be/Xe-83tBcxhs
youtu.be
DNA Break Repair by Homologous Recombination (2024) Drew Berry wehi.tv
YouTube video by WEHImovies
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Chris Carnie @cjcarnie.bsky.social · 02/12/2024
Happy to share a review written with the wonderful @jstingele.bsky.social on transcription-coupled DPC repair, featuring an overview of new methods, close comparison with TC-NER, comments on clinical implications and plenty of discussion of the unknowns. www.cell.com/trends/cell-...
cell.com
Transcription-coupled repair of DNA–protein crosslinks
DNA–protein crosslinks (DPCs) are highly toxic DNA lesions that are relevant to multiple human diseases. They are caused by various endogenous and environmental agents, and from the actions of enzymes...
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Reposted by Satpal (Sati) Jhujh
Nik Copeland @nikcopeland.bsky.social · 26/11/2024
Not sure if there are PhG applicants on here, but if there are there is an information event for UKRI funded PhD projects at northwest Bio here. Please sign up if interested. t.co/yIgIyelZFP
t.co
https://www.eventbrite.co.uk/e/1095142052359?aff=oddtdtcreator
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Satpal (Sati) Jhujh @drjhujh.bsky.social · 25/11/2024
Re posting this as there's been a lot of updates since I originally posted the starter pack!
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Tatiana Moiseeva @tat1anamoiseeva.bsky.social · 20/11/2024
ok, Genome Stability people. Here are our two starter packs - since I can't pin them both independently to my profile, have to make a new post. Still adding new people to the second pack. As usual, please reach out if you would like to be added! bsky.app/starter-pack... bsky.app/starter-pack...
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Mark Rubin @markrubin.bsky.social · 16/11/2024
BlueSky: A Guide for Scientists by @jacoates.bsky.social #AcademicSky #EduSky 🧪
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Román González-Prieto @romangp.bsky.social · 15/11/2024
The lab 2024 article is out! BRCA1/BARD1 ubiquitinates PCNA to promote continuous, ssDNA-free, DNA synthesis in a RAD18-independent pathway. www.nature.com/articles/s41...
nature.com
BRCA1/BARD1 ubiquitinates PCNA in unperturbed conditions to promote continuous DNA synthesis - Nature Communications
Here the authors identify PCNA, a master regulator of DNA replication, as a ubiquitin substrate for the BRCA1/BARD1 heterodimer. This modification is crucial to avoid the appearance of unreplicated DN...
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Satpal (Sati) Jhujh @drjhujh.bsky.social · 15/11/2024
go.bsky.app/KxWyLE4 Trying to put together a starter pack for journals!
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Tycho Mevissen @tychomevissen.bsky.social · 14/11/2024
Let's get this site started. I'm excited to share that our work on transcription-coupled DNA repair is now published! We recapitulated TC-NER in Xenopus egg extract and identified STK19 as a core repair factor that couples lesion-stalled RNA Pol II to TFIIH. 🧬🐸 ➡️ cell.com/cell/fulltex...
cell.com
STK19 positions TFIIH for cell-free transcription-coupled DNA repair
Together with structural analyses, a cell-free system for transcription-coupled nucleotide excision repair (TC-NER) shows that STK19 is an integral component of the TC-NER complex that couples RNA pol...
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Nature Portfolio @natureportfolio.nature.com · 12/11/2024
We said hello to our new followers last week, but there's many more of you now! Welcome! We've created a starter pack for you, which is a work in progress. We'd also love to hear from you about your work we've published or what kind of things you want us to post.
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Francesca Mattiroli @fmattiroli.bsky.social · 12/11/2024
The peer-reviewed version of our paper is out! Thanks to all co-authors, editor and reviewers for the smooth process 🤓🎉 And don’t miss the chromatin haiku! www.cell.com/molecular-ce...
cell.com
Acute multi-level response to defective de novo chromatin assembly in S-phase
Dreyer et al. show the broad and rapid impact that acute inhibition of chromatin formation in S-phase has on DNA replication, chromatin stability, and cell-cycle progression. This study sheds light on...
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Satpal (Sati) Jhujh @drjhujh.bsky.social · 12/11/2024
Nice to see the number of people on here increasing over the last few days. 🎉
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Tatiana Moiseeva @tat1anamoiseeva.bsky.social · 12/11/2024
ok, I tried to make a starter pack on genome stability/DNA replication/DNA repair etc. Sorry if I couldn't find someone, please nominate yourself and your colleagues in comments or DMs, looking forward to connecting with everyone! go.bsky.app/9jdDNxG
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Richard Sever @richardsever.bsky.social · 10/11/2024
Reminder for newcomers that bioRxiv has Bluesky accounts in every subject category - great way to keep up (please re-skeet) connect.biorxiv.org/news/2023/09...
connect.biorxiv.org
bioRxiv expands on Mastodon and Bluesky
bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution
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Satpal (Sati) Jhujh @drjhujh.bsky.social · 28/10/2024
Maiden BlueSky post to rep a collaborative paper I'm a co-author from the Stewart and Vazri lab showing that RNF168 has roles in both DSB repair and DNA replication! Really glad to have been part of this and super excited for people to read it! 😅
academic.oup.com
PCNA-binding activity separates RNF168 functions in DNA replication and DNA double-stranded break signaling
Abstract. RNF168 orchestrates a ubiquitin-dependent DNA damage response to regulate the recruitment of repair factors, such as 53BP1 to DNA double-strand b
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