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Posts by Julien Guglielmini

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Diversity-generating retroelements for programmable targeted hypermutagenesis - Nature Biotechnology Diversity-generating retroelements are engineered for directed evolution in E.coli.

🔈Paper out! We turned the most fascinating phage host-switch mechanism, diversity-generating retroelements, into a programmable mutagenesis tool, DGRec. You can perform targeted hypermutation of any 50-200bp sequence directly in vivo in E. coli www.nature.com/articles/s41...

5 days ago 95 44 5 4
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Multiple protein structure alignment at scale with FoldMason Protein structure is conserved beyond sequence, making multiple structural alignment (MSTA) essential for analyzing distantly related proteins. Computational prediction methods have vastly extended ou...

FoldMason is out now in @science.org. It generates accurate multiple structure alignments for thousands of protein structures in seconds. Great work by Cameron L. M. Gilchrist and @milot.bsky.social.
📄 www.science.org/doi/10.1126/...
🌐 search.foldseek.com/foldmason
💾 github.com/steineggerla...

2 months ago 301 147 4 3

Phold's manuscript is now available @narjournal.bsky.social thanks to @susiegriggo.bsky.social @npbhavya.bsky.social @vijinim.bsky.social @linsalrob.bsky.social @martinsteinegger.bsky.social @milot.bsky.social @eunbelivable.bsky.social & others not on bsky #phagesky academic.oup.com/nar/article/...

3 months ago 84 44 1 1

Je me suis abonné à ce compte récemment. J'étais pas prêt.

5 months ago 0 0 0 0
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L’Union européenne capitule pour éviter une guerre commerciale avec Trump La présidente de la Commission européenne, Ursula von der Leyen, a conclu dimanche soir un accord avec Donald Trump qui fait la part belle aux exigences de Washington. Un droit de douane global de 15 % sera appliqué, mais Bruxelles promet aussi de financer massivement l’économie états-unienne.

L’Union européenne capitule pour éviter une guerre commerciale avec Trump

Par @romaricgodin.bsky.social

8 months ago 119 57 17 15
graphical abstract of the article the extended mobility of plasmids

graphical abstract of the article the extended mobility of plasmids

Here's our new broad review on the extended mobility of plasmids, about all mechanisms driving and limiting their transfer. From conjugation to conduction, phage-plasmids to hitchers, molecular to evolutionary dynamics, ecology to biotech. The state of affairs. 1/9 academic.oup.com/nar/article/...

8 months ago 184 93 4 9
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In-host evolution of Yersinia enterocolitica during a chronic human infection - Nature Communications This study documents the evolution of antibiotic resistance and major growth defects in Yersinia enterocolitica in a patient over 14 years, revealing genetic changes that shed light on bacterial adapt...

1/8 - New in @natcomms.nature.com !
☣️ Meet Yersinia enterocolitica (Ye) — a lesser-known but still dangerous cousin of Yersinia pestis.
We uncover how this invasive pathogen can survive and adapt for 14 years inside a human host under constant antibiotic pressure 👇
www.nature.com/articles/s41...

9 months ago 39 17 1 1

Excited to share this preprint focused on the genomic taxonomy of C. diphtheriae #diphtheria
➡️ www.biorxiv.org/content/10.1...
Hope it helps advance research and surveillance of this relevant bacterial pathogen. Thanks to @sylvainbrisse.bsky.social and BEBP and BIGSdb teams for making it possible!

9 months ago 11 4 0 0
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Avis aux amateurs : France Travail propose environ 12 millions d'euros pour lui développer un "agent conversationnel" pour échanger avec les demandeurs d'emplois par SMS. www.boamp.fr/pages/avis/?...

10 months ago 6 7 9 12

NIH funding supporting the HMMER and Infernal software projects has been terminated. NIH states that our work, as well as all other federally funded research at Harvard, is of no benefit to the US.

10 months ago 286 231 37 47
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Release RAxML-NG v2.0-beta2 · amkozlov/raxml-ng Main new features Adaptive tree search heuristic (Togkousidis 2023) , (Togkousidis 2024) Multiple fast branch support measures Integrated model testing Full Changelog: 1.2.2...2.0-beta2

RAxML-NG v2.0 beta is here

github.com/amkozlov/rax...
Features
1. Difficulty prediction
academic.oup.com/mbe/article/...
2. Adaptive search academic.oup.com/mbe/article/...
3. Early Stop
www.biorxiv.org/content/10.1...
4. Model selection
5. Rapid bootstrapping academic.oup.com/mbe/article/...

11 months ago 63 34 0 1
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BREAKING NEWS: CDC orders mass retraction and revision of submitted research across all science and medicine journals. Banned terms must be scrubbed. Any unpublished manuscript mentioning certain topics, including gender and "LGBT," must be pulled or revised.

insidemedicine.substack.com/p/breaking-n...

1 year ago 0 0 0 0
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Federal agencies bar Black History Month and other 'special observances' A number of federal agencies have banned celebrations related to MLK Jr. Day, Women's History Month and other such observances to comply with Trump's executive orders.

Au même moment, les agences fédérales de la Défense ont reçu ordre d'annuler toutes activités autour de 11 évènements annuels sur la diversité américaine, dont le Black History Month, le Women History Month, la LGBT Pride Month, le Holocaust Remembrance Day... www.nbcnews.com/politics/don...

1 year ago 33 20 1 0
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Donald Trump lance sa guerre commerciale mondiale Après avoir confirmé les sanctions douanières contre le Mexique et le Canada, Donald Trump vise désormais l’Union européenne. Des droits douaniers pourraient être imposés très rapidement. Tous...

Donald Trump lance sa guerre commerciale mondiale

Par Martine Orange

1 year ago 59 19 8 4
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À Strasbourg, contre son mécénat, Total demande à « s’impliquer fortement » à l’université de Strasbourg Le groupe TotalEnergies fait des dons à l’université de Strasbourg, notamment pour l’école de chimie. Une convention de mécénat dévoile l’emprise que la multinationale souhaite établir dans...

Le groupe TotalEnergies fait des dons à l’université de Strasbourg, notamment pour l’école de chimie. Une convention de mécénat dévoile l’emprise que la multinationale souhaite établir dans l’enseignement supérieur et la recherche. www.mediapart.fr/journal/france/310125/st...

1 year ago 131 67 5 4
Transformation, Recombination and horizontal transfer

Transformation, Recombination and horizontal transfer

The contribution of natural transformation for the acquisition of novel genes has been notoriously difficult to quantify because it relies on recombination (which is affected by other processes). Here's a first estimate : doi.org/10.1101/2025... (for the very busy: 1-6% of gene gains) #MicroSky

1 year ago 81 43 1 4
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Les Big Tech basculent à l’extrême droite : c’est l’économie, idiot ! La conversion de tout le secteur de la technologie au trumpisme est le fruit de son modèle économique. Pour poursuivre sa logique prédatrice, il a trouvé dans l’extrême droite un débouché politique...

La conversion de tout le secteur de la technologie au trumpisme est le fruit de son modèle économique. Pour poursuivre sa logique prédatrice, il a trouvé dans l’extrême droite un débouché politique utile. www.mediapart.fr/journal/economie-et-soci...

1 year ago 210 70 7 3
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This preprint makes a point that is valid for a lot of machine learning approaches. Organisms or genes are linked by evolutionary history; they are not independent. This results in correlation between learning and test sets, and often in over-optimistic evaluations of the methods' outcome.

1 year ago 59 27 3 0

L'équipe de Mediapart arrive progressivement sur Bluesky

Les comptes à suivre sont dans notre starter pack 👇

go.bsky.app/5ueP6wM

1 year ago 2022 369 97 28

University websites are like distant stars, when you look at them you see the scientists as they used to be many years ago

1 year ago 462 66 13 7

First paper from my student Daria Frolova's PhD now on biorxiv:
www.biorxiv.org/content/10.1...
The key question: plasmids change structurally ~as fast as they mutate, so how can we decide whether 2 plasmids are "the same plasmid" for epi purposes?
1/n

1 year ago 34 29 2 4
Hijackers, hitchhikers, or co-drivers? The mysteries of microbial mobilizable genetic elements

New paper from the lab, the mysteries involving the genetic elements that move by being mobilized by other MGEs. Hitcher Genetic Elements are distinctive, ancient and diverse.

ecoevorxiv.org/repository/v...

1 year ago 10 10 1 0

New job offer: we search a postdoc (bioinformatics) to work on mobile genetic elements and gene flow in bacteria, with a focus on antibiotic resistance within a consortium including bioinformatics, synthetic biology, epidemiology & biochemistry. See research.pasteur.fr/en/job/postd... #MicroSky

2 years ago 25 37 0 3
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Bacterial strain nomenclature in the genomic era: Life Identification Numbers using a gene-by-gene approach bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution

New preprint out now - stable bacterial strain nomenclature with Life Identification Numbers using a gene-by-gene approach. From our wonderful collaborators at the Institut Pasteur.
www.biorxiv.org/content/10.1...

2 years ago 4 8 1 0
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First step in a community project to provide a uniformly assembled, annotated and searchable set of bacterial genomes, our preprint on our initial release of 1.9 million genome assemblies+taxonomic estimates. (figure compares with previous 661k dataset)
www.biorxiv.org/content/10.1...
#microsky

2 years ago 71 45 3 3
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Capsules and their traits shape phage susceptibility and plasmid conjugation efficiency - Nature Communications Bacterial capsules provide protection against the environment, including host immune systems. Authors swap capsule loci in Klebsiella pneumoniae to reveal the role of these sugar coats against plasmid...

Our latest work is finally out!
How #capsule serotypes of #Klebsiella pneumoniae influences #phage adsorption and infection, and #plasmid conjugation efficiency.
Plasmids care about size-phages dont!
Great work led by Matthieu Haudiquet in the lab @epcrocha.bsky.social

doi.org/10.1038/s414...

2 years ago 34 27 1 1
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I recently made a comic complaining that NASA refuses to listen to my good ideas for improving the Solar System (xkcd.com/2750).

To my delight, NASA’s Science Mission Directorate has sent me an actual expert panel evaluation of my “flatten the planets” proposal! Sadly, they decided not to fund it.

2 years ago 5810 1690 132 133

New from the lab. We were stuck studying plasmid mobility because we ignored most origins of transfer by conjugation. Using the occurrences of known oriT, we developed a method to find novel unrelated families. Works well. We now cover most conjugative plasmids of E coli, K pneumo & A baumannii.

2 years ago 36 25 0 1

J'ai rarement vu un trailer aussi angoissant

2 years ago 0 0 0 0

Oh non ! James Herbert Brennan, l'auteur de l'incroyable cycle Quête du Graal des Livres Dont Vous Êtes Le Héros, s'en est allé rejoindre le funestre paragraphe 14 à l'âge de 83 ans. Il laisse derrière lui une génération de jeunes Pip endeuillés.

RIP :'(

rip.ie/death-notice...

2 years ago 73 23 6 3