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My grandfather built motors that powered big machines. In a lab not so different from his workshop, my colleagues and I uncovered the assembly of the bacterial motor. Today, this discovery has been published in @NatureMicrobiol #MolecularNodes #Discovery nature.com/articles/s41564-0…
Prash Singh retweeted
CellWalk is designed for iPhone Duo. It's an app for learning biology.
It's like Apple Maps, zoom from a whole cell down to the atomic level. Realtime on device. Billions of atoms, and optimized for the A20 Pro.
You can try CellWalk Pro free for 14 days on your new iPhone Duo.
#iphoneduo
Prash Singh retweeted
Feeling proud of where SpliceCraft is at right now. Still got more details to add and UI jank to solve, but powerful af and open source. Made, with love, for this community. Enjoy.
SpliceCraft.bio
Prash Singh retweeted
You can draw nice arrows more easily
now in @moldraw ⌬
Real win in drawing tools is to have features
which people don't even realize exist.
Which make UX great.
Saving time and effort towards outcome.
Prash Singh retweeted
We’re extending the 50% increase to weekly Claude Code limits through August 31.
We hope to make this a permanent change to our plans, but strong demand for our models means that capacity may be tight over the coming weeks. We’ll keep you posted as things develop.
To find food, bacteria use short-term memory and a biased random walk. They swim longer toward nutrients and tumble more when moving away. This works by comparing current conditions to the last few seconds. This animation compares random walk and biased random walk in bacteria.
I would love to try this on my bacterial flagellar motor project!
Together with UC Berkeley we are announcing the laser phase plate - a breakthrough in atomic resolution imaging. This is the brightest continuous wave laser in the world, 100 million times the intensity of the surface of the sun.
Phase contrast plays an important role in microscopy, but it was thought close to impossible for electron microscopy, where it would require interfering with an electron beam. Holger Mueller and Robert Glaeser proposed exactly this using a standing wave laser. It has taken over 15 years to make this a reality. Biohub partnered with UC Berkeley and Mueller to support this work and to engineer and build the technology.
Contrast has been the critical barrier to achieving atomic resolution imaging of the cell. In cryo-electron tomography, a cellular imaging technology that uses electron microscopy, the low contrast makes it impossible to resolve anything but the largest proteins within their cellular context. The laser phase plate removes that barrier.
With advances in AI this breakthrough in contrast will start to open up a new frontier in structural biology, that will allow us to see the molecular machines of the cell, and how they assemble into far more complex and dynamic systems, and understand how they work.
Prash Singh retweeted
When electron microscopy becomes less of a job and more of a lifestyle...
So I reverse-engineered a driver for two retired TEM hand panels and used them as a game controller. Finally, a practical use for keeping my TEM muscle memory. #FEI #blackmyth #wukong
One of the coolest and intuitive apps I have seen on X.
And it runs in the terminal!
Good bye, CLC Sequence Viewer.
Huge thanks to @ATinyGreenCell for building it.
Prash Singh retweeted
This is actually shaping up to be a really aesthetically pleasing plasmid editor. Amazing what you can do without leaving the terminal. Love seeing the github say 100% Python. Looks like I'll be able to make the May 24th deadline after all!
Prash Singh retweeted
Tina Iverson quoted in: What Physical ‘Life Force’ Turns Biology’s Wheels? quantamagazine.org/what-phys… via @QuantaMagazine
A 1,000,000x reduction in key quantum-mechanical calculations!
The animation below shows one of the systems: a bacterial motor surrounded by water molecules.
By modifying Hartree–Fock to keep important electron-repulsion terms and discard negligible ones, researchers simulated a 15-million-electron bacterial motor and other massive biological assemblies.
The paper also shows a connection between calculated atomic energies and AlphaFold confidence scores.
The authors used optimized all-electron Hartree–Fock with divide-and-conquer partitioning to make these calculations feasible. Article: nature.com/articles/s42004-0…
I think structural glycobiology is entering a breakout phase.
In the next few years, high-resolution cryoEM, AI-guided glycan modeling, and structural glycomics will challenge the protein-centric view of molecular biology by showing that glycans are not just decorations, but structural and functional determinants of biological machines.
A new paper in journal Science has revealed structural glycans using cryo-EM analysis of tubular mastigonemes. – at Oak Hill, TN
The article: science.org/doi/10.1126/scie… – at Oak Hill, TN
















