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Andrew Deans

@genomestability.bsky.social

Head of Genome Stability Unit at SVI, Melbourne. All things DNA damage response: Fanconi Anaemia, Bloom Syndrome, Gene editing, R-loops, telomeres, HR & more

877 Followers  |  489 Following  |  1,134 Posts  |  Joined: 07.02.2024  |  2.02

Latest posts by genomestability.bsky.social on Bluesky

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ATP-dependent remodeling of chromatin condensates reveals distinct mesoscale outcomes Adenosine triphosphate (ATP)โ€“dependent chromatin remodeling enzymes mobilize nucleosomes, but how such mobilization affects chromatin condensation is unclear. We investigate effects of two major remod...

Today I am so pleased to present our work on how chromatin remodelers affect mesoscale chromatin organization.
www.science.org/doi/10.1126/...

02.10.2025 22:55 โ€” ๐Ÿ‘ 84    ๐Ÿ” 34    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 0

Australian Cell Cycle, DNA repair and Telomere meeting draft schedule is now online!
Join us with 5 plenary speakers, 16 invited national speakers, 22 selected speakers, 61 poster presenters and lots and lots of fun science. Less than one month to go.
australiancellcycle.org/draft-schedu...

25.09.2025 01:47 โ€” ๐Ÿ‘ 9    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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Differential PARP inhibitor responses in BRCA1-deficient and resistant cells in competitive co-culture Synthetic lethality describes a genetic relationship where the loss of two genes results in cell death, but the loss of one of those genes does not. Drugs used for precision oncology can exploit synth...

Happy to share the latest paper from the lab looking at PARP inhibitor responses in isogenic BRCA1 cell line pairs, from the Master work of Shiella Amelia Soetomo and Michael Sharp: dx.plos.org/10.1371/jour...

22.09.2025 23:23 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The Eukaryotic homology search complex distorts donor DNA structure to probe for homology Homologous recombination (HR) is a DNA double-strand break repair pathway that facilitates genetic exchange and protects damaged replication forks during DNA synthesis. As a template-based repair proc...

Just throwing this out there as a significant conceptual advance in the field

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

17.09.2025 18:23 โ€” ๐Ÿ‘ 19    ๐Ÿ” 8    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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A high-resolution, nanopore-based artificial intelligence assay for DNA replication stress in human cancer cells Nature Communications - Determining how replication forks move across the human genome is critical for the effective use of agents that target replication stress. Here, the authors present...

Checkout our latest research in @natcomms.nature.com
rdcu.be/eBqBI A high-resolution, nanopore-based artificial intelligence assay for DNA replication stress in human cancer cells. A collaboration with Mike Boemoโ€™s team

01.09.2025 10:04 โ€” ๐Ÿ‘ 30    ๐Ÿ” 15    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Australian Invited Speakers 2025 We are in the process of inviting a number of outstanding Australian leaders in the fields of DNA repair, Cell Cycle and Telomere biology. Current invited speakers include: Lisa Alcock, Curtain Uniโ€ฆ

๐Ÿฆ˜๐ŸงฌAustralian invited speaker list finalised for the
2025 Cell Cycle, DNA repair and Telomere Meeting!
Friday 5 Sep is your last chance to register at the EARLY BIRD rate & submit an abstract ๐Ÿคฉ
australiancellcycle.org/australian-i...

03.09.2025 22:42 โ€” ๐Ÿ‘ 11    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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๐Ÿšจ Last chance! Register NOW for the Australian Cell Cycle, DNA Repair & Telomere Meeting ๐Ÿงฌ
๐Ÿ“ Melbourne Museum | Oct 19โ€“22
Submit your abstract + lock in the reduced rate this week
๐Ÿ‘‰ australiancellcycle.org

24.08.2025 22:27 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Registering some members of my team for the 19th Australian Cell Cycle, DNA Repair and Telomere Workshop in Melbourne in October. Early-bird registrations by August 31. ๐Ÿงช

20.08.2025 07:16 โ€” ๐Ÿ‘ 8    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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High-throughput investigation of cyclin docking interactions reveals the complexity of motif binding determinants - Nature Communications Many proteinโ€“protein interactions depend on Short Linear Motifs (SLiMs). In this study, the authors use large-scale binding assays, deep mutational scanning, and structural analysis to map SLiMs recog...

Just published: Our paper on high-throughput analysis of cyclin docking interactions, led by the group of Norman Davey @icr.ac.uk and with some small-complex-plus-peptide #cryoEM by @natalia-mg.bsky.social from my lab. Congratulations, everyone!
www.nature.com/articles/s41...

15.08.2025 21:26 โ€” ๐Ÿ‘ 59    ๐Ÿ” 19    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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Heads up for those working in ubiquitin biology and targeted protein degradationโ€”Lorne Ubiquitin 2025 is happening 20โ€“23 November in Lorne, Victoria, Australia.

Late abstracts are still being acceptedโ€”worth checking out if youโ€™re looking to share your work in a focused, international setting. ๐Ÿฆ˜๐Ÿฆ˜๐Ÿฆ˜

07.08.2025 13:01 โ€” ๐Ÿ‘ 3    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
DNA-repair-driven cell death compels us to rethink cancer therapies - Nature Reviews Molecular Cell Biology Emerging evidence suggests that, following genotoxic therapy, it is the repair of DNA double-strand breaks, rather than the damage itself, that frequently drives cancer cell death.

New from us in @natrevmcb.nature.com -- @szmyd-radoslaw.bsky.social & @radoncdocgee.bsky.social explore how DNA repair actively shapes cancer cell fate following DNA damage, reframing repair as both a protective process & a driver of treatment response and cell death. www.nature.com/articles/s41...

04.08.2025 05:48 โ€” ๐Ÿ‘ 25    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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In case you missed the online advance version, we are now in the latest print issue of EMBO J! www.embopress.org/doi/full/10.... Structural and biochemical investigation of the key activation step in the Fanconi anaemia DNA repair pathway, recognition of branched DNA by FANCM

28.07.2025 22:19 โ€” ๐Ÿ‘ 8    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Image credit: @gloglita.bsky.socialโ€ฌ @lifescienceeditors.bsky.socialโ€ฌ captured DynaTag in action: a pA-Tn5 probe (multicoloured) binds an antibody (white), which binds p53 DNA-binding domain (green) on DNA (blue) within 2 nucleosomes

Image credit: @gloglita.bsky.socialโ€ฌ @lifescienceeditors.bsky.socialโ€ฌ captured DynaTag in action: a pA-Tn5 probe (multicoloured) binds an antibody (white), which binds p53 DNA-binding domain (green) on DNA (blue) within 2 nucleosomes

๐ŸงชMove over CUT&Tag, thereโ€™s a new #TranscriptionFactor mapping method in town.
Our newly developed DynaTag is faster, cleaner, more sensitive than #ChIPseq, #CUT&RUN and #CUT&Tag.
๐Ÿ”— Our @natcomms.nature.com paper: www.nature.com/articles/s41...
๐ŸงตLetโ€™s break down what makes DynaTag so powerful (1/7)

28.07.2025 09:10 โ€” ๐Ÿ‘ 91    ๐Ÿ” 30    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 4

This was my all time favourite conference to attend anywhere in the world. Almost makes me wanna get back into research just so I can attend.

24.07.2025 07:16 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Australian Cell Cycle, DNA repair and Telomere Meeting October 20-22, 2025

Register for the Australian Cell Cycle, DNA Repair & Telomere Meeting in beautiful Melbourne October 19-22, 2025. Plenty of slots for selected abstracts and posters. High praise last time from Piotr Sicinski: "en par with a Gordon conference for science and interaction"
www.australiancellcycle.org

22.07.2025 10:42 โ€” ๐Ÿ‘ 8    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

Waiting for reviews: 'This is taking forever!' ๐Ÿ˜ค
Doing reviews: 'Extension please?' ๐Ÿ™ƒ

12.07.2025 00:38 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Identification of RNF114 as ADPr-Ub reader through non-hydrolysable ubiquitinated ADP-ribose - Nature Communications Deltex E3s modify ADP-ribosylated targets with ubiquitin, creating a hybrid modification whose readers remains unknown. Here, the authors synthesise a non-hydrolysable probe that mimics the modificati...

A few years back we discovered a dual hybrid protein modification composed of ADP-ribose dinucleotide and ubiquitin (ADPr-Ub). Now we reveal that ADPr-Ub can be further ubiquitinated by the E3 ubiquitin ligase RNF114!
www.nature.com/articles/s41...

www.science.org/doi/10.1126/...

10.07.2025 06:11 โ€” ๐Ÿ‘ 35    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Asymmetrical recognition and processing of double-strand breaks formed during DNA replication DNA end resection to generate 3' ssDNA overhangs is the first step in homology-directed mechanisms of double-strand break (DSB) repair. While end resection has been extensively studied in the repair of endonuclease-induced DSBs, little is known about how resection proceeds at DSBs generated during DNA replication. We previously established a system to generate replication-dependent double-ended DSBs at the sites of nicks induced by the Cas9D10A nickase in the budding yeast genome. Here, we suggest that these DSBs form in an asymmetric manner, with one break end being blunt or near blunt, and the other bearing a 3' ssDNA overhang of up the size of an Okazaki fragment. We find that Mre11 preferentially binds blunt ends and is required for the removal Ku from these DSB ends. In contrast, the ends predicted to have 3' overhangs have minimal Ku binding, and end resection at these break ends can proceed in a mostly Mre11-independent manner through either the Exo1 or Dna2-Sgs1 long-range resection pathways. These findings indicate that resection proceeds differently at replication-dependent DSBs than at canonical DSBs, and reveals that Ku selectively binds nearly blunt ends, potentially explaining why replication-dependent DSBs are poorly repaired by non-homologous end joining. ### Competing Interest Statement The authors have declared no competing interest. National Institute of General Medical Sciences, https://ror.org/04q48ey07, R35GM126997

Symington lab Preprint: Evidence for asymmetrical resection at replication-associated DSBs:
www.biorxiv.org/content/10.1...

06.07.2025 12:21 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Check out this new review (with animations, natch) of mechanisms of licensing origins of DNA replication - a wonderful (and continuing!) collaboration with Bruce Stillman @cshlnews.bsky.social and John Diffley @crick.ac.uk! www.nature.com/articles/s41...

02.07.2025 17:01 โ€” ๐Ÿ‘ 79    ๐Ÿ” 43    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 2
Structural mechanism of strand exchange by the RAD51 filament

Really cool new cryoEM structure of RAD51 caught in the act of recombination initiation at a D-loop. elifesciences.org/reviewed-pre...

15.06.2025 21:37 โ€” ๐Ÿ‘ 8    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Potent Cyclic Peptide Inhibitors Disrupt the FANCMโ€“RMI Interaction FANCMโ€“RMI is a proteinโ€“protein interaction that maintains genome stability during DNA repair events in cancers that rely on the Alternative Lengthening of Telomeres (ALT) pathway for survival. We repo...

๐Ÿ’ฅ๐Ÿ›ŸWow cyclic peptides are cool! So excited to share a new publication on "Potent Cyclic Peptide Inhibitors Disrupt the FANCMโ€“RMI Interaction". Work led by @yuhenglau.bsky.social to which we contributed structures and ideas. The top hits mimic native MM2...but in reverse! pubs.acs.org/doi/10.1021/...

11.06.2025 05:24 โ€” ๐Ÿ‘ 20    ๐Ÿ” 6    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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BRCA2 C-terminal clamp restructures RAD51 dimers to bind B-DNA for replication fork stability With detailed structural and molecular analyses, Longo et al. find that the BRCA2 C-terminal TR2, which is a critical cancer therapy resistance factor, reshapes the RAD51 dimer for B-DNA binding that ...

BRCA2 C-terminal clamp restructures RAD51 dimers to bind B-DNA for replication fork stability: Molecular Cell www.cell.com/molecular-ce...

05.06.2025 19:52 โ€” ๐Ÿ‘ 12    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Andrew Deans @genomestability.bsky.social and collaborators show that #FANCM helicase has evolved from an ancient repair motor into a specialized sensor coupling DNA-damage recognition to Fanconi Anemia pathway activation
www.embopress.org/doi/full/10....

02.06.2025 08:43 โ€” ๐Ÿ‘ 17    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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Structural basis of Fanconi anemia pathway activation by FANCM | The EMBO Journal imageimageFANCM employs a sophisticated dual recognition mechanism in genome maintenance, using distinct DNA-binding domains to identify and move around on branched DNA structures. This study reveals how FANCM evolved from an ancient repair motor ...

FANCM is a promising cancer therapeutic target due to genetic interactions with BRCA1, SMARCAL1 & RAD52 & in ALT-positive cancers. Moving toward this goal, our work was an amazing collaboration with industry and academic partners across Australia, China and the UK!
www.embopress.org/doi/full/10....

02.06.2025 00:41 โ€” ๐Ÿ‘ 7    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Instead, a different part of FANCM is required, the MM1 domain. We used AlphaFold modelling to show that the MM1 domain grabs onto the FA core complex binding and mutants in this domain also fail to repair DNA damage properly.

02.06.2025 00:41 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Structure-specific DNA binding, not ATP hydrolysis, is required for FANCD2:FANCI monoubiquitination.

02.06.2025 00:41 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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๐Ÿงฉ We also have a new structure of FANCM-CTD:FAAP24, also co-crystallised with splayed DNA. The two ends of the protein cooperative in recognition of branched DNA substrates at replication forks and other DNA junctions.

02.06.2025 00:41 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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But FANCM arranges itself on DNA very differently. Using a brand new DNA migration assay we show that several key DNA-binding residues contact the DNA junction (green), while others (yellow) grab onto the splayed DNA so that ATP hydrolysis is converted to forward momentum.

02.06.2025 00:41 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Actually, the protein has evolved from the same ancestor as the dsRNA immune receptor proteins RIG-I and MDA-5, and the siRNA processing enzyme Dicer, and the DNA repair protein XPF.

02.06.2025 00:41 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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And here is what FANCM translocase domain bound to 3'flap hairpin DNA looks like!

02.06.2025 00:41 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

@genomestability is following 20 prominent accounts