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Gemma Fisher

@gemmalmfisher.bsky.social
73 followers 101 following 0 posts

Investigator Scientist @ MRC LMS studying protein-DNA interactions from a single molecule perspective.

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Reposted by Gemma Fisher
Anita Meier @anitafmeier.bsky.social · 03/07/2026
Our latest paper is out! 🎉 We show that the HSV-1 origin binding protein UL9 tethers dsDNA thereby forming intramolecular DNA loops and intermolecular DNA tethers. 🤝 www.nature.com/articles/s41...
nature.com
HSV-1 origin binding protein UL9 forms intermolecular DNA tethers and intramolecular DNA loops - Nature Communications
The mechanism of herpes simplex virus type 1 (HSV-1) genome replication remains not fully understood. Here, the authors find that the HSV-1 origin binding protein UL9 does not mediate DNA looping but ...
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Reposted by Gemma Fisher
Korak Ray @korakray.bsky.social · 18/06/2026
The first paper from my postdoc, looking at how tension activates DNA cleavage by the endonuclease ANKLE1, is out in @narjournal.bsky.social. ANKLE1 processes ultrafine bridges, persisting linkages between chromosomes that can lead to catastrophic DNA ruptures. (1/3) doi.org/10.1093/nar/...
Two panels showing ANKLE1 cleavage of DNA held between optically trapped beads. The left shows slow cleavage at low tension, and the right shows fast cleavage at high tension.
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Reposted by Gemma Fisher
Quentin Smith @qmsmith.bsky.social · 25/03/2026
1/11 In our story out today in @nature.com , we showcase the molecular mechanisms that enable Cas9 to bind and cleave negatively supercoiled ((-)SC) off-targets! 🧬🧵 🔗 www.nature.com/articles/s41... #CRISPR #Cas9 #DNATopology #AFM #CryoEM #SingleMolecule #Biophysics
nature.com
Structural basis of supercoiling-induced CRISPR–Cas9 off-target activity - Nature
Cas9 structures explain topology sensing and off-target activation.
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Reposted by Gemma Fisher
Ilaria Belluomo @ilabell.bsky.social · 19/02/2026
🌟 The new Academic Women Association (AWA) event is approaching! Workshop Title: Intentional Careers How To Figure Out ‘What’s Next?’ Speaker: Hannah Roberts Date: 2nd March 2026 Time: 12:30 pm Location: LMS Building 7th Floor Seminar Room, Hammersmith Campus Registration is required👇
eventbrite.com
Intentional Careers: How to figure out ‘what’s next?’
Join us in person to explore how to nail down your next career move with confidence and intention! All are welcome!
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Reposted by Gemma Fisher
Erin E. Cutts @eecutts.bsky.social · 04/02/2026
I’m very pleased to share our work looking at what controls condensin II cell-cycle dependant activity; a great collaboration with @eugenekimlab.bsky.social, @damlatetiker.bsky.social, Kyle Muir and Kumiko Samejima www.biorxiv.org/content/10.6...
biorxiv.org
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Reposted by Gemma Fisher
MRC Laboratory of Medical Sciences @mrc-lms.bsky.social · 20/11/2025
📣 We’re hiring 6 new Team Science postdocs! Our Team Science approach brings together interdisciplinary researchers to tackle questions no single field can solve alone. Find out more and download our brochure below
lms.mrc.ac.uk
MRC Postdoctoral Research Scientists x 6 - MRC Laboratory of Medical Sciences
Team Science Project
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Reposted by Gemma Fisher
Daniela Barillà @danielabarilla.bsky.social · 22/07/2025
And the story is published now!🍾 www.nature.com/articles/s41... Open access link: rdcu.be/exnOc Many years in the making, great collaboration with @archaellum.bsky.social & @tunglejic.bsky.social Thanks @ukri.org BBSRC & @leverhulme.ac.uk for funding, reviewers & editor!! 🙏 #microsky #archaeasky
nature.com
Coupling chromosome organization to genome segregation in Archaea - Nature Communications
Proteins SegA and SegB are important for chromosome segregation and organization in archaea of the order Sulfolobales, but mechanisms are unclear. Here, Kabli et al. uncover patterns and mechanisms th...
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Reposted by Gemma Fisher
Royal Microscopical Society @royalmicrosoc.bsky.social · 16/06/2025
Working with @globalbioimaging.bsky.social, we're very proud to launch our new #AcknowledgementGuidelines poster, helping #ImagingScientists get the credit they deserve for their research contributions! #CreditWhereItsDue @bioimaginguk.bsky.social Read more: rms.org.uk/resource/rms...
Two smiling staff members at an imaging facility hold up the 'Acknowledgement Guidelines' poster
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Reposted by Gemma Fisher
Anita Meier @anitafmeier.bsky.social · 18/06/2025
💥Our next AWA event is all about networking, mentorship and how to do it in a way that is right for you.😌 Sign up and come along. Everyone from Imperial/ MRC welcome! Limited spaces available, drinks and snacks included 🥂🧀
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Reposted by Gemma Fisher
MRC Laboratory of Medical Sciences @mrc-lms.bsky.social · 28/04/2025
There's still time to apply for an Emerging Innovators Fellowship for scientists of Black heritage! If you’re ready to take the next step in your career and make an impact in the world of biomedical research, we encourage you to apply. Applications close 11 May 2025. Find out more 👇
lms.mrc.ac.uk
Emerging Innovators Fellowship - MRC Laboratory of Medical Sciences
The Emerging Innovators Fellowship is a new 3-year fully-funded postdoctoral fellowship for scientists from Black Heritage Backgrounds.
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Reposted by Gemma Fisher
Biophysical Journal @biophysj.bsky.social · 01/05/2025
#OPENACCESS: FAIR data for optical tweezers experiments. Matthew T.J. Halma, Sowmiyaa Kumar, Jan van Eck, Sanne Abeln, Alexander Gates, and Gijs J.L. Wuite.
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Reposted by Gemma Fisher
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 Gemma Fisher
Stephan Gruber @gruberlab.bsky.social · 18/03/2025
Yet another preprint from the lab—this one is personal. During my PhD, I ended up working on the cohesin SMC hinge, showing its role in sister chromatid cohesion and proposing it as a DNA entry gate in the SMC ring. But the details have remained mysterious and controversial.
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