Roger Castells

@rcastellsg.bsky.social

💼 Junior Group Leader at CNIO @cniostopcancer.bsky.social 🔬Designing proteins and studying their structure #cryoEM #proteindesign #ai #ml 🎓 Alumni @ UCLA, John Innes Centre, UAB 🌍 Lab website: https://www.rcglab.com

“The laser phase plate has the highest continuous light intensity in the solar system, outside of the inner regions of the Sun,” says physicist Holger Müller. Learn more about this landmark achievement in microscopy in @cenmag.bsky.social: cen.acs.org/analytical-c...

15 years, flawless mirrors, and the brightest laser in the world: How physicists brought phase contrast to cryo-EM

Phase contrast enables structures of smaller proteins, could drive in-cell proteomics

cen.acs.org

Cryo-ET gives unparalleled views of cellular structures, but targeted sample preparation by cryo-FIB milling has been a constraint. No longer! A new workflow yields close to 100% targeting success for centrioles & other small structures. Read the preprint ⤵️ www.biorxiv.org/content/10.6...

Diagram of FIB-SEM with integrated fluorescence microscope alongside cryo lamella micrograph and 3D segmentation highlighting targeted centrioles

➡️Todd Yeates, inventor of protein cages, and Roger Castell-Graells, leader of CNIO's Biomolecular Design and Structural Nanomedicine Group, explain their collaboration thanks to the Fundación Occident Visiting Researcher Programme l1nq.com/t8s5h1i

➡️Todd Yeates, creador de las nanopartículas de proteínas, y Roger Castell-Graells, líder del Grupo de Diseño Biomolecular y Nanomedicina Estructural del CNIO, explican su colaboración en Programa de Investigadores Visitantes de Fundación Occident. ➡️ acortar.link/KJIwxU

Todd Yeates, de la Universidad de California en Los Angeles #ucla, realizará varias estancias en el CNIO gracias al Programa de Investigadores Visitantes de Fundación Occident. Yeates es el creador de nanopartículas de proteínas que se ensamblan a medida, como en un ‘lego’. 👇🏻 ➡️ acortar.link/KJIwxU

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@mgflast.bsky.social showing us how to do cellular structural biology on easymode thanks to his collection of pretrained nets 😎 Particularly cool: he demonstrates custom tomo picking workflows e.g. yTuRC at the minus end of MTs, restricting picks to specific cellular compartments Check it out!

Allegretti Lab@matteoall.bsky.social · 2mo ago

We're happy to announce our new preprint! 🐸 easymode: general pretrained networks for cellular cryo-ET. Segment ~20 cellular features – ribosomes, microtubules, mitochondria, nuclei & more – with zero model training. 🔗 doi.org/10.64898/202... 🧵👇

Diseño Biomolecular y Nanomedicina Estructural Roger Castells @rcastellsg.bsky.social Microscopía Electrónica Jasmina Boskovic Espectroscopía y RMN Ramón Campos-Olivas Producción de Proteínas Jorge M. Torrecuadrada Cristalografía de Proteínas Inés Muñoz ➡️ bit.ly/4tlNsnb

Programa de Biología Estructural

Al integrar los avances en crio-microscopía electrónica (crio-ME) con la inteligencia artificial (IA), estamos visualizando procesos biológicos a escala atómica, descubriendo detalles moleculares nunc...

bit.ly

Added a little script to chimerax-trimmings to automate the creation of panels for model-map fit figures. It zones the map around (by default) 40aa parts of each chain (but doesn't cut in the middle of helices). Saves each as a png, metadata to csv. Saves each view as a scene for tweaking views.