Lightnews — Scholar-powered news

Reposted by Herve Celia

Asaf Levy @asaflevylab.bsky.social · 17d

A recent cool preprint by John Whitney's lab on a new family of antibacterial proteins secreted by Gram-positive bacteria that enter and kill a broad spectrum of bacteria. Cell entry is receptor-independent and relies on cleavage by a co-secreted protease and the PMF.
www.biorxiv.org/content/10.1...

Proteolytically activated antibacterial toxins inhibit the growth of diverse Gram-positive bacteria

Many species of bacteria produce small-molecule antibiotics that enter and kill a wide range of competitor microbes. However, diffusible antibacterial proteins that share this broad-spectrum activity ...

www.biorxiv.org

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Herve Celia @hervecelia.bsky.social · 1d

Is this Halloween related?

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Herve Celia @hervecelia.bsky.social · 1d

Noisy isn’t it?

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Reposted by Herve Celia

STCmicrobeblog @stcmicrobeblog.bsky.social · 1d

𝘗𝘴𝘦𝘶𝘥𝘰𝘮𝘰𝘯𝘢𝘴 fans take note 👇

"𝘗. 𝘢𝘦𝘳𝘶𝘨𝘪𝘯𝘰𝘴𝘢 senses EPS trails using type IV pili and adhesins during biofilm formation"

www.nature.com/articles/s41...
#MicroSky

figure from https://www.nature.com/articles/s41564-025-02087-4

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Reposted by Herve Celia

Shabaana Khader @khadershabaana.bsky.social · 6d

UChicago Microbiology is searching for tenured or tenure-track faculty working in host-pathogens interactions, viral and bacterial pathogenesis, and emerging infectious diseases. Come join our vibrant Department! microbiology.uchicago.edu
Apply here apply.interfolio.com/174404

Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

apply.interfolio.com

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Reposted by Herve Celia

Mississippi Free Press @mississippifreepress.org · 3d

OPINION: "Today, as I approach 40, I watch children as young as kindergartners practice active-shooter drills, ducking under desks, freezing in dark corners, pretending this horror is part of their regular school day," Duvalier Malone writes.
buff.ly/MJdfppU

Opinion | As Kids Die at School, We Need an Emmett Till Moment

Dr. Duvalier Malone writes about the normalization of school shootings and how immediate action must be taken to stop them.

www.mississippifreepress.org

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Reposted by Herve Celia

Victor de Lorenzo (CNB, Madrid) @vdlorenzo.bsky.social · 4d

Université Grenoble Alpes opens a full professorship in microbiology in 2026. The selected candidate will develop their research program on quantitative approaches in microbiology in the Laboratoire Interdisciplinaire de Physique. More info: liphy.univ-grenoble-alpes.fr/en/join-us/r...

Professorship (tenure) in 'Quantitative approaches in microbiology' (CNU Sections 64/65) | LIPhy - Université Grenoble Alpes

liphy.univ-grenoble-alpes.fr

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Reposted by Herve Celia

cryoEM papers @cryoempapers.bsky.social · 4d

Structural remodeling of the mitochondrial protein biogenesis machinery under proteostatic stress www.biorxiv.org/content/10.1101/2025.10.06.680693v1 #cryoem

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Reposted by Herve Celia

Markus Deserno @markusdeserno.bsky.social · 15d

I am super excited to announce that we have a tenure-track faculty position in biophysics open in the Department of Physics at Carnegie Mellon! 🧪

Interfolio link: apply.interfolio.com/174360

PLEASE, share widely across the blue skies!

Let me briefly explain what we're looking for:

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Tenure-track Position in Biophysics at Carnegie Mellon University, Department of Physics

Location: Pittsburgh, PA
Open Date: Sep 19, 2025

Description
The Department of Physics at Carnegie Mellon University invites applications for a tenure-track faculty position in biophysics. The appointment is intended to be at the Assistant Professor level, but exceptional candidates at a higher level may also be considered. We seek outstanding candidates with a strong record in cellular and subcellular biophysics. Topics of particular interest include, but are not limited to, uncovering how key characteristics of living systems arise from the interplay between supramolecular cellular structures, how the emergent cellular circuitry defines goals and enables robust decision making, and how metabolic resources are allocated. This encompasses understanding of how information is learned, stored, transduced, and processed across subcellular structures. Applicants with theoretical, data science, or experimental backgrounds within biological physics are encouraged to apply. The ideal candidate will strengthen and extend research programs of current biophysics faculty in the Department of Physics and collaborate with broader life science activities across many departments at CMU and the wider Pittsburgh area.

More details on Interfolio: https://apply.interfolio.com/174360

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Reposted by Herve Celia

Julien GIRAUD @juliengiraud.bsky.social · 7d

Amazing science at the 2nd edition of the Secretion Days in Marseille 🌞 ! Huge thanks to all participants and to @archaellum.bsky.social for an outstanding opening talk. Looking forward to the next edition!

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Reposted by Herve Celia

cryoEM papers @cryoempapers.bsky.social · 7d

Molecular insights into how the motions of the β-barrel and POTRA domains of BamA are coupled for efficient function pubmed.ncbi.nlm.nih.gov/41044071/ #cryoem

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Reposted by Herve Celia

Le Canard enchaîné @lecanardenchaine.fr · 11d

Pascal Praud et Nicolas Sarkozy ont dîné ensemble dans un palace parisien, à la veille de la condamnation de l'ex-président à 5 ans de prison. C'était bien la peine d'en faire des caisses à l'antenne de CNews sur Thomas Legrand et Patrick Cohen…

Praud-motion de la vertu : Le présentateur de CNews s'offre un dîner avec Nicolas Sarkozy | Le Canard enchaîné

Pascal Praud a soupé avec l'ex-chef de l'Etat moins de 24 heures avant sa condamnation dans l'affaire du financement libyen de la campagne présidentielle de……

www.lecanardenchaine.fr

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Reposted by Herve Celia

Samara Reck-Peterson @samreckpeterson.bsky.social · 11d

We are hiring an Assistant Professor of Biochemistry and Biophysics at Weill Cornell Medicine. Come join our collaborative research environment with state-of-the-art facilities in NYC! Application review starts Oct 22.
biochem.weill.cornell.edu/join-our-fac...

Join our Faculty | Department of Biochemistry & Biophysics

Call for applications:We invite applications for a tenure-track Assistant Professor position in the newly established Department of Biochemistry and Biophysics. We are conducting an open search for ou...

biochem.weill.cornell.edu

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Herve Celia @hervecelia.bsky.social · 15d

doi.org/10.1242/jcs....

Surface protein machineries in Gram-negative bacteria

Summary: We present a general overview of the structure and function of protein machineries found on the surface of Gram-negative bacteria, many of which serve important roles in mediating virulence i...

doi.org

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Reposted by Herve Celia

cryoEM papers @cryoempapers.bsky.social · 17d

In situ structures of the Legionella Dot/Icm T4SS identify the DotA-IcmX complex as the gatekeeper for effector translocation pubmed.ncbi.nlm.nih.gov/40986344/ #cryoem

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Herve Celia @hervecelia.bsky.social · 17d

www.lemonde.fr/sciences/art...

Ces bactéries qui tuent leurs voisines pour les dévorer

CARTE BLANCHE. Dans sa Carte blanche au « Monde », Alice Lebreton évoque l’arme de contact de certains micro-organismes, une sorte de seringue moléculaire qui leur permet de subvenir à leurs besoins.

www.lemonde.fr

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Herve Celia @hervecelia.bsky.social · 18d

www.lemonde.fr/sciences/art...

La fusion nucléaire, promesse d’une énergie abondante et décarbonée, au cœur d’une bataille entre start-up

Qui sera la première à envoyer un électron de fusion dans le réseau électrique ? De l’Allemagne à la Chine, en passant par les Etats-Unis et la France, plus d’une cinquantaine de start-up se livrent à...

www.lemonde.fr

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Reposted by Herve Celia

Le Canard enchaîné @lecanardenchaine.fr · 19d

Nocif pour le système nerveux et la fertilité, l’hexane sert à extraire les huiles alimentaires. Il n’apparaît pourtant sur aucune étiquette. Déjà dénoncée par "Le Canard", cette faille est qualifiée de “catastrophe sanitaire” dans un livre-enquête.

Alimentation : Le cri de l’hexane au fond de l’huile de cuisine | Le Canard enchaîné

Présent dans presque toutes les huiles industrielles, ce dérivé du pétrole aux effets destructeurs sur le système nerveux échappe à l’étiquetage en étant classé……

www.lecanardenchaine.fr

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Reposted by Herve Celia

Rhys Grinter @rhyswg.bsky.social · 21d

The outer membrane of Gram-negative bacteria blocks many antibiotics. Our latest work reveals that L-type pyocins bypass this barrier by inactivating the BAM complex, killing Pseudomonas aeruginosa without entering the cell, providing a new blueprint for beating antibiotic resistance.

A Protein Antibiotic Inhibits the BAM Complex to Kill Without Cell Entry

Many antibiotics are ineffective against Gram-negative pathogens such as Pseudomonas aeruginosa because they cannot penetrate the bacterial outer membrane. Here, we show that protein antibiotics calle...

www.biorxiv.org

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Reposted by Herve Celia

Hernando Sosa @hjsosa.bsky.social · 22d

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

Pathogenic KIF1A R350 Variants Disrupt A Conserved Kinesin-Tubulin Salt Bridge

Pathogenic variants in the motor domain of the kinesin-3 motor protein KIF1A cause a range of neurodevelopmental and neurodegenerative conditions collectively termed KIF1A-associated neurological diso...

www.biorxiv.org

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Reposted by Herve Celia

cryoEM papers @cryoempapers.bsky.social · 22d

Structural basis for mTORC1 activation on the lysosomal membrane pubmed.ncbi.nlm.nih.gov/40963021/ #cryoem

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Reposted by Herve Celia

Alexandra Delbot @alexandradelbot.bsky.social · 23d

Vous faites quoi samedi aprem à Paris ? Un p'tit festoche de vulga des sciences à la Reine Blanche, ça vous dit ? La reine de mon coeur @marietreibert.bsky.social y donne une rigolote conférence - comment les bizarreries du règne animal inspirent des ripostes au capitalisme… ou au patriarcaca 🪲

FESTIVAL DES CLICS ET DES SCIENCES 2025 | Reine Blanche

Après le succès de sa première édition, le festival Des Clics et Des Sciences ouvre la saison pour réunir six vulgarisateur·rices scientifiques sur la scène de La Reine Blanche. Le temps d’un week-end...

www.reineblanche.com

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Herve Celia @hervecelia.bsky.social · Sep 10

www.theatlantic.com/politics/arc...

A U.S. Citizen Detained by ICE for Three Days Tells His Story

A conversation with George Retes, an Army veteran swept up in a California raid

www.theatlantic.com

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Reposted by Herve Celia

Dan Sloan @sloanevolab.bsky.social · Sep 8

The Department of Biology at Colorado State University is hiring an Assistant Professor in the area of plant-microbe interactions! Please spread the word!

jobs.colostate.edu/postings/165...

Assistant Professor Plant-Microbe Interactions

We seek a creative, collaborative, and visionary plant biologist to establish an internationally recognized research program at the forefront of plant-microbe interactions aimed at understanding how t...

jobs.colostate.edu

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Herve Celia @hervecelia.bsky.social · Sep 4

www.sciencedirect.com/science/arti...

Structural insights into outer membrane protein biogenesis in pathogenic Neisseria

N. gonorrhoeae (Ngo) causes the sexually transmitted infection gonorrhea with ∼106 million infections worldwide annually. Ngo infections can result in…

www.sciencedirect.com

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