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perbullough.bsky.social

@perbullough.bsky.social
201 followers 118 following 26 posts
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perbullough.bsky.social @perbullough.bsky.social · 06/10/2026
Our latest preprint on bacterial spore assembly. A novel assembly normally associated with non-biological crystal growth. Evidence for convergent evolution in the construction of highly robust spore outer envelopes. @robfagan.bsky.social @abigailroberts.bsky.social www.biorxiv.org/content/10.6...
biorxiv.org
Protein architectures of the bacterial spore envelope - common principles of assembly
Bacterial spores are among the most durable of cell forms, protected by robust envelopes of layered protein assemblies. Remarkably, these envelopes often share similar architectures across distantly r...
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Science Magazine @science.org · 05/10/2026
Exclusive: A new analysis refutes James Watson’s claim that he was the first to recognize the significance of the famed photograph 51. scim.ag/4rTKck8
scim.ag
How did Rosalind Franklin miss the helix in her iconic DNA image? She didn’t
New analysis refutes James Watson’s claim he was first to recognize significance of famed photograph 51
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Alexey Amunts @amunts.bsky.social · 31/08/2026
A sad day. Ada's pioneering work on the ribosome changed how we understand one of the central machines of life. She is a remarkable example of curiosity and boldness in pursuing questions that seemed impossible. Her scientific courage and persistence has been an inspiration.
wis-wander.weizmann.ac.il
Prof. Ada Yonath, Nobel Laureate and a Model of Scientific Perseverance, Has Passed Away - Weizmann Wonder Wander - News, Features and Discoveries
From pursuing an impossible dream to uncovering one of the cell’s best-kept secrets and advancing the design of improved antibiotics
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Lars-Anders Carlson @lacarlson.bsky.social · 17/08/2026
Open PI position in infection biology at Umeå University, deadline 15 September. MIMS is the Swedish node of the Nordic EMBL partnership and offers "EMBL-style" group leader positions. Great resources and infrastructure in a friendly environment. www.umu.se/en/mims/ 1/2
umu.se
MIMS
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Rita Tamayo @ritatamayo.bsky.social · 13/08/2026
New from the lab--C. diff uses phase variation to initiate infection in a virulent state but that phenotype presents a fitness cost as disease develops. A programmed reset mechanism primes Clostridioides difficile virulence at the onset of infection | Science Advances www.science.org/doi/10.1126/...
science.org
A programmed reset mechanism primes Clostridioides difficile virulence at the onset of infection
Clostridioides difficile is a major cause of antibiotic-associated diarrhea. This pathogen produces toxins essential for disease and flagella that promote intestinal colonization. Flagella and toxins ...
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perbullough.bsky.social @perbullough.bsky.social · 11/08/2026
This looks like step 1 to Trump's annexation of Greenland. It's a region I have visited twice- it is an extremely remote and pristine wilderness, too fragile for this kind of operation. A blatant attack on Greenland's and Denmark's national sovereignty. www.techtimes.com/articles/323...
techtimes.com
Greenland Energy Told Investors Permits Were On Track: Government Source Said Otherwise
Greenland Energy oil drilling in Jameson Land is blocked for 2026: Greenland’s mineral official confirmed the Trump-linked NASDAQ firm cannot receive permits before November 8, past the logistics wind...
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Kumaran Ramamurthi @ramamurthilab.bsky.social · 06/08/2026
Biofilm formation in #Bacillus subtilis is thought to precede sporulation, but T. Updegrove says that a subpopulation of sporulating cells triggers other cells to become biofilm formers via an intracellular metabolite (glycerol) repurposed as a signaling molecule (!) www.science.org/doi/10.1126/...
science.org
A metabolite morphogen coordinates multicellular development in Bacillus subtilis
Cell-cell signaling using a core metabolite repurposed as a developmental cue coordinates bacterial multicellular development.
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Da-Neng Wang @danengw.bsky.social · 28/07/2026
Congratulations to Chris Russo, MRC Laboratory of Molecular Biology, for receiving the 2026 K.H. Kuo Award for Distinguished Scientist in Biological Electron Microscopy www.bsc.org.cn/KuoSymposium...
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Sjors Scheres @sjorsscheres.bsky.social · 27/07/2026
Where is all the money going? Every day we read about massive cuts by @ukri.org, but their budget wasn't cut.
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Kirsty Grainger @handle.invalid · 27/07/2026
Earlier this year UKRI launched a funding call to invest £40M in ONE AI lab. www.ukri.org/opportunity/... For some unknown reason they decided to fund TWO AI labs at the cost of £60M. An extra £20M. Just found. That's the equivalent of 7 more years of Jodrell Bank. www.ukri.org/news/ukri-la...
ukri.org
UKRI launches two AI research labs to stay ahead in global race
Two new labs will back British researchers to develop next generation artificial intelligence (AI) systems, helping secure the UK’s position as a global leader.
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perbullough.bsky.social @perbullough.bsky.social · 26/07/2026
www.sciencedirect.com/science/arti... Our latest paper on C. difficile phage/S-layer interactions with thanks to @robfagan.bsky.social @jasonwils.bsky.social for all their hard work on this.
sciencedirect.com
S-layer-phage interaction in Clostridioides difficile
Successful infection by a bacteriophage requires the injection of the phage genome into the cytoplasm of the host bacterium. To achieve this, an infec…
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cryoEM papers @cryoempapers.bsky.social · 25/07/2026
CryoEM in the fast lane of structural biology pubmed.ncbi.nlm.nih.gov/42489646/ #cryoEM
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Wiep Klaas Smits (ExpBac/CMAT) @smitslab.bsky.social · 16/07/2026
Look what arrived in the mail! @springernature.com
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Rodrigues Lab @crodrigueslab.bsky.social · 15/07/2026
Checkout out the latest from our lab. One of two papers published by PhD student, Behzad Dehghani who recently completed their PhD. We identify CprV as a "safeguard" protein that helps protect cellular compartmentalisation during bacterial spore formation. www.nature.com/articles/s42...
nature.com
A safeguarding factor monitors septal pore stability to secure compartmentalization during sporulation in Bacillus subtilis - Communications Biology
Identification of CprV during bacterial sporulation reveals insight into how developing cells monitor compartmental integrity during cellular remodelling and differentiation.
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Wiep Klaas Smits (ExpBac/CMAT) @smitslab.bsky.social · 14/07/2026
Full article: Genomic evolution and re-emergence of a multidrug-resistant Clostridioides difficile RT027 clone with reduced vancomycin susceptibility driving a prolonged hospital outbreak www.tandfonline.com/doi/10.1080/...
tandfonline.com
Genomic evolution and re-emergence of a multidrug-resistant Clostridioides difficile RT027 clone with reduced vancomycin susceptibility driving a prolonged hospital outbreak
Following an extended period of declining prevalence of the epidemic Clostridioides difficile ribotype 027 (RT027) in Portugal, a genetically distinct, multidrug-resistant (MDR) RT027 strain with r...
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Pooja Gupta @poojag96.bsky.social · 10/07/2026
Beautiful images!
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Robin Bisson @robinbisson.bsky.social · 07/07/2026
For 6 months the line from DSIT & UKRI on STFC cuts has been that no final decisions have been taken That is no longer the case, after DSIT approved UKRI's proposal for how to save £162m British research at Cern will be hit, along with UK science facilities Scoop by me & @francesjones.bsky.social
researchprofessionalnews.com
UK research at Cern to shrink as government approves STFC cuts - Research Professional News
Exclusive: Science department approves UKRI’s cost-saving proposal, with major UK facilities also facing cutbacks
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Oli Clarke @olibclarke.bsky.social · 04/07/2026
Pseudosymmetry in the wild 🙃🌻
Cluster of yellow Bird’s-foot trefoil flowers with almost six-fold symmetry.
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Bacteriophage Lab of Institut Pasteur @phagepasteur.bsky.social · 01/07/2026
We’re happy to introduce phageFACTor (Functional Annotation and Curation Tool) 👩‍💻Developed by Tanaïs Moreau, our most recent PhD candidate, and building on Phold, we were able to improve annotation of prophage genes by as much as 50% 🧬 You should check it out github.com/TMs-code/pha...
In this example, we're showing the improvement in the percentage of annotated genes from prophage "Maintenon" from Clostridium innocuum (doi: 10.1186/s40168-023-01541-x) using the phageFACTor pipeline
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Wiep Klaas Smits (ExpBac/CMAT) @smitslab.bsky.social · 26/06/2026
Clostridioides difficile as a Zoonotic and Foodborne Pathogen: Reviewing the Global Evidence and South African Data onlinelibrary.wiley.com/share/Z6KJUI...
onlinelibrary.wiley.com
Clostridioides difficile as a Zoonotic and Foodborne Pathogen: Reviewing the Global Evidence and South African Data
Reader environment loaded
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Drew Hryckowian @a-hryckowian.bsky.social · 24/06/2026
New preprint from the lab led by Alex Dobrila! We show that butyrate-dependent toxin release in C. difficile is mediated by a broadly-conserved endolysin (EndD), which is under the control of the sporulation sigma factor SigK. Excited to share this story! 👇 www.biorxiv.org/content/10.6...
biorxiv.org
EndD mediates butyrate-dependent toxin release in Clostridioides difficile
Clostridioides difficile is an urgent threat to human health. Current treatments for C. difficile infections (CDIs) are antibiotics and microbiome restoration therapy (MRT) for recurrent cases. Howeve...
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perbullough.bsky.social @perbullough.bsky.social · 24/06/2026
Latest from our lab in special issue "CryoEM in the Fast Lane of Structural Biology". Review on CISs in #C.difficile & new results on phage contraction & receptor binding @jasonwils.bsky.social @robfagan.bsky.social @molmicrosheffield.bsky.social #SLayers #CryoEM #Phages doi.org/10.1107/S205...
doi.org
How cryoEM has advanced our understanding of bacteriophages and bacteriocins targeting Clostridioides difficile
Two recent cryogenic electron microscopy (cryoEM) structures provide a unique opportunity to compare a bacteriophage and a bacteriocin targeted at the same host. CryoEM reveals the most detailed view ...
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Kresten Lindorff-Larsen @lindorfflarsen.bsky.social · 23/06/2026
Come join the new Novo Nordisk Foundation Center for Protein Design as a group leader Cool science in a great scientific environment in wonderful and very family friendly Copenhagen There are two positions that can either be at TT assistant or associate prof level employment.ku.dk/tenure-track...
employment.ku.dk
Tenure-track Assistant Professor or Associate Professor of De novo Protein Design
The Novo Nordisk Foundation Center for Protein Design at the University of Copenhagen seeks to appoint two new group leaders in de novo protein design from 1 February 2027 or as soon as possible thereafter. These positions will be at the Assistant or Associate Professor level and associated with the Department of Biology (Faculty of Science) or the Department of Drug Design and Pharmacology (Faculty of Health and Medical Sciences).
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Derek Lowe @dereklowe.bsky.social · 10/06/2026
A fellow of the Royal Society slashed funding for disease prevention, leading directly to the deaths of uncounted children. He promotes white supremacy and is actively encouraging racist violence in the UK. But he's Elon Musk, a billionaire. So the Royal Society does nothing. @royalsociety.org
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perbullough.bsky.social @perbullough.bsky.social · 18/06/2026
sheffield.ac.uk/news/univers...
sheffield.ac.uk
University of Sheffield strengthens top 100 global standing with 10-place rise in QS World University Rankings 2027
The University of Sheffield has risen 10 places in the QS World University Rankings 2027 to be ranked 82nd in the world and 14th in the UK, reinforcing its position as a world-leading university
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cryoEM papers @cryoempapers.bsky.social · 16/06/2026
The resolution revolution revisited pubmed.ncbi.nlm.nih.gov/42290378/ #cryoEM
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Jim Thomas @homomoleculus.bsky.social · 12/06/2026
I don't usually post about my day job, but the University of Sheffield is planing a restructure and compulsory staff redundancies within Chemistry. 20% of staff are under threat. You can sign an open letter opposing this decision here #SaveSheffieldChemistry savesheffieldchemistry.netlify.app
savesheffieldchemistry.netlify.app
An Open Letter
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Nature @nature.com · 14/06/2026
Gargantuan deep-sea crustaceans can go for years without eating, thanks to a metabolism-related gene borrowed from bacteria go.nature.com/4v9LQPl
go.nature.com
Giant crustacean of the deep sea steals a trick from bacteria
Nature - Organisms called bathynomids boast a bacterial gene that helps them to regulate their metabolism in the cold depths.
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Stephen Curry @scurry.bsky.social · 10/06/2026
"Fellows shall not act or fail to act in any way which would […] bring the Society into disrepute." But this morning ministers condemned Elon Musk FRS for enabling violence on the streets of Belfast. www.theguardian.com/uk-news/2026... Would the @royalsociety.org like to comment?
Extract from linked article reads:

"Violence in Belfast that forced families to flee their homes on Tuesday night was fuelled by online commentators who would struggle to find the city on the map, Northern Ireland’s justice minister has said.

The condemnation by Naomi Long came as a UK cabinet minister said that Elon Musk also had a responsibility “not to stoke grievance”. The billionaire owner of X had used his own account to share images of a horrific knife attack in Belfast on Monday and had amplified far-right messaging about it."
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DMartin @drddom.bsky.social · 05/06/2026
This just keeps getting worse. For non-science people, we use commercial antibodies on a daily basis to detect proteins of interest using many methods. Bad antibodies mean bad results, which means a lot of medical research was wasted. I can't imagine the costs to trainees (their time), labs, etc.
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Wiep Klaas Smits (ExpBac/CMAT) @smitslab.bsky.social · 05/06/2026
Hosting @3cdf.bsky.social was a blast! Thanks to all attendees and presenters for sharing their exciting research! @robfagan.bsky.social @pssalgado.bsky.social @meeraunnikri.bsky.social @perbullough.bsky.social @johann-i2bc.bsky.social
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Our World in Data @ourworldindata.org · 03/06/2026
Measles vaccines save millions of lives each year. Measles used to be an extremely common disease. Just sixty years ago, over 90% of children would have been infected by it, and of those who developed symptoms, around a quarter would be hospitalized.
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The Daum Lab @daumlab.bsky.social · 02/06/2026
We are looking for an enthusiastic postdoc to investigate molecular mechanisms of microsporidian infection using soft X-ray tomography, cryo FIB-SEM, and cryoET. If you are interested, do not hesitate to get in touch and check out the application link. The closing date: 21st June 2026.
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Nature @nature.com · 29/05/2026
Catalogue entries for more than 100 antibodies sold by the research services and supply company Thermo Fisher Scientific contain images that have apparently been manipulated, according to a pair of science sleuths. go.nature.com/4wX4yej
go.nature.com
Science sleuths uncover more than 100 suspicious images in Thermo Fisher antibody catalogue
Scientists have long worried about the reliability of commercial antibodies, and the latest findings have sparked fresh concerns.
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Zamin Iqbal @zaminiqbal.bsky.social · 25/05/2026
This is awful to hear, describing how Sean Eddy (HMMER, infernal, pfam, rfam) has been defunded. The letter said his work "had been determined to be of absolutely no value to the US taxpayer, and therefore it was being specifically terminated," www.npr.org/2026/05/21/n...
npr.org
Researchers say the Trump administration is finding new ways to punish science
Even with federal grants largely restored, scientists say the Trump administration is still preventing those funds from reaching them. The consequences, they say, are already becoming clear.
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Stefan Marciniak @profmarciniak.bsky.social · 25/05/2026
Universities across England face ‘real risk’ of closure due to insolvency for first time www.independent.co.uk/news/uk/home...
independent.co.uk
Universities in England face ‘real risk’ of closure due to insolvency for first time
In a new report, the Education Committee said 24 institutions are at risk of insolvency and closure within 12 months
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Nature @nature.com · 19/05/2026
The physical-sciences repository arXiv is banning researchers from posting their manuscripts on the platform for one year if a submission is found to contain references that have been hallucinated by artificial-intelligence tools. go.nature.com/4nDfXvv
go.nature.com
Researchers who use hallucinated references to face arXiv ban
The preprint server is the latest to impose stiff penalties on authors who contribute to AI ‘slop’ — but not everyone is convinced it’s the right approach.
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Luisa De Sordi @luisadesordi.bsky.social · 18/05/2026
I had fun writing a short commentary on the importance of integrating prophage biology into microbiome research 🦠 Now out in @cp-cellhostmicrobe.bsky.social #microbiomesky #phagesky www.cell.com/cell-host-mi...
cell.com
Making room for gut prophages in human health
Prophages are pervasive in the human gut yet largely overlooked in microbiome research, despite substantial functional potential. Emerging evidence indicates that prophages regulate bacterial fitness,...
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Sholto David @sholtodavid.bsky.social · 17/05/2026
Surprised to discover that Thermo Fisher appears to show a fake western blot for the validation of one of their p53 antibodies. I've added a diagram to show the very similar bands. This does not appear to be one of the "published figures" but their own internal data.
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Rob Edwards @linsalrob.bsky.social · 06/05/2026
Want to find #prophage in your #bacteria genomes? We built PhiSpy a long time ago, and now we've created a new web page for it: linsalrob.github.io/PhiSpyWeb/ Best of all, the data never leaves your computer! #phage #phagesky
linsalrob.github.io
PhiSpyWeb – Browser-based Prophage Prediction
Browser-based prophage prediction using PhiSpy, Pyodide, and WebAssembly
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PLOS Biology @plosbiology.org · 30/04/2026
#Bacteriophages infecting #Klebsiella show capsule specificity that strongly shapes host range. @rafalmostowy.bsky.social &co reveal diverse prophage-encoded receptor-binding enzymes, including esterases, that drive capsule tropism @plosbiology.org 🧪 plos.io/48z4DdE
GWAS predicts diverse receptor-binding proteins. Recall of the strongest GWAS predictor identified for each K-locus. For each K-locus, predictors with precision ⩾ 0.8 were selected, retaining the one with the highest F1×MCC product across clustering thresholds; only those with F1 ⩾ 0.5 and MCC ⩾ 0.5 are shown (with the corresponding K-loci names bolded). Shapes indicate the clustering threshold at which the strongest predictor was identified; colours reflect the top predicted ECOD domain, or grey for unannotated regions. For the 16 predictors obtained, AlphaFold3 models were generated based on representative proteins, with ECOD domains coloured based on HHpred predictions.
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Caro Kobras 🐍 @carokobras.bsky.social · 23/04/2026
Super exciting news 🚨 I am hiring a technician to join my brand new lab at the University of Birmingham! @imibirmingham.bsky.social Come and support my BBSRC-funded research on understanding how staphylococci survive antibiotics. Please share! 🧫🧪 www.jobs.ac.uk/job/DRH271/a...
jobs.ac.uk
Assistant Technical Specialist at University of Birmingham
Searching for an academic job? Explore this Assistant Technical Specialist opening on jobs.ac.uk! Click to view more details and browse other academic jobs.
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ASM @asm.org · 14/04/2026
Since its first isolation in 1935, several thousand Clostridioides difficile isolates have been collected & analyzed. In #ClinMicroRev: an overview of the current C. difficile population structure, including a summary of the 5 main clades. Read now: asm.social/2TC
GrapeTree phylogenies of the Enterobase Clostridioides strains. Each phylogeny was generated using all strains present within Enterobase (accessed 25June 2025) and the “Create MLST GrapeTree” function with the MSTree V2 algorithm.
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Richard Sever @richardsever.bsky.social · 04/04/2026
CRUK goes green [OA] news.cancerresearchuk.org/2026/04/01/w...
news.cancerresearchuk.org
Why we won’t be funding open access publishing any more - Cancer Research UK - Cancer News
The open access movement was bold and promising, but ultimately disappointing. Now is the time to stop and call for a new way to make publishing work…
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John Rubinstein @johnrubinstein.bsky.social · 04/04/2026
Sad news on the passing of Prof. Andreas Engel, a pioneer in the field of cryo-EM (shared with the 3DEM community by Henning Stahlberg). Andreas' kindness, warmth, and enthusiasm for science and his colleagues will be missed.
Dear colleagues,
With deep sadness I share the news that Andreas Engel passed away last Wednesday, at the age of 82, after a courageous fight against an aggressive caner. Only half a year ago, he was out hiking in the Italian mountains with his wife Barbara, walking 160 km in a single week. 
Andreas trained as a physicist in Bern, Switzerland, before heading to John Hopkins University in Baltimore for his postdoctoral work. He then led a research group at the Biozentrum in Basel, and in 1985 took on the role of a group leader in research and development at Ilford Ltd. in Fribourg, Switzerland.
In 1987, he joined forces with his colleague Ueli Aebi to establish the Maurice E. Müller Institute at the Biozentrum of the University of Basel. Together, Ueli and Andreas served as professors for structural biology there for almost a quarter century, leaving a lasting mark on the field of structural biology as we know it today.
 
Andreas Engel was a true pioneer. He was among the first to apply atomic force microscopy (AFM) with the tip operating under water, and one of the earliest researchers to perform 3D reconstructions using scanning transmission electron microscopy, achieving remarkable high-resolution maps of porin 2D crystals by STEM. He became a leading expert in membrane protein 2D crystallization, and his group played a key role in the determination of the first aquaporin structure, in collaboration with Peter Agre and Yoshinori Fujiyoshi. 
As he approached retirement from Basel, Andreas founded the Center for Cellular Imaging and NanoAnalytics (C-CINA) of the University of Basel, which in 2009 operated among others one of the very early Titan Krios instruments. From 2008 also held a professorship at Case Western Reserve University, Cleveland, followed by a position at TU Delft in the Netherlands in 2013. In 2020, he was among the founding members of CryoWrite, a company in Basel that he led as CEO until recently. 
His contributions to science, to the tools of str…Photo of Andreas Engel
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Alisia Fadini @alisiafadini.bsky.social · 01/04/2026
ROCKET 🚀 inference-time optimization of AlphaFold to fit structural data is published! rdcu.be/fa9YH Since our preprint, we’ve pushed it to regimes where other methods break: low resolution, weak signal, real experimental edge cases. Here’s what we learned: 1/15
rdcu.be
AlphaFold as a prior: experimental structure determination conditioned on a pretrained neural network
Nature Methods - ROCKET improves experimental structure elucidation by integrating implicit structural knowledge from OpenFold, a trainable reimplementation of AlphaFold2, with X-ray...
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Peter Lind @peteralind.bsky.social · 17/03/2026
Associate Senior Lecturer/Assistant Professor position in Molecular Microbiology available at Lund University, Sweden: lu.varbi.com/en/what:job/...
lu.varbi.com
Associate Senior Lecturer/Assistant Professor in Molecular Microbiology
The Department of Biology conducts research and teaching in many subject areas such as ecology, evolutionary biology, organismal biology and molecular biology. A total of approximately 300 people curr
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Dee Chan @deechan17.bsky.social · 18/03/2026
My late husband would have been so excited about this news! Scientists discover new heavy proton-like particle at CERN share.google/8aKm98yYU5NE...
share.google
Scientists discover new heavy proton-like particle at CERN
Scientists from the University of Manchester have played a leading role in the discovery of a new subatomic particle at CERN's Large Hadron Collider (LHC). The particle, known as the Ξcc⁺ (Xi‑cc‑plus)...
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Rob Fagan @robfagan.bsky.social · 19/02/2026
New paper from us. If you're interested in genetic manipulation of Clostridia, we have a few new tools for you! 36 new plasmids - all available from @addgene.bsky.social www.microbiologyresearch.org/content/jour... #microsky
microbiologyresearch.org
A set of genetic tools for use in Clostridioides difficile and related species
The Clostridia are a phylogenetically diverse group of anaerobic, spore-forming bacteria that include species of medical, veterinary and industrial importance. The last two decades have seen major adv...
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Peter Tennant @pwgtennant.bsky.social · 15/03/2026
"My name may be forgotten when it comes, but the time will arrive when great outbreaks of cholera will be things of the past. And it is the knowledge of the way in which the disease is propagated which will cause them to disappear" Happy birthday to John Snow! His name & his work is not forgotten.
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