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PyrexCorex

@pyrexcorex

Following advances in cellular, molecular & structural biology in a mercifully bot-free space.

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Latest posts by PyrexCorex @pyrexcorex

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Deltaviruses spread through a viral Trojan Horse Hepatitis D-like satellite viruses, known as deltaviruses, have been recently discovered in a wide range of animals. These viruses are thought to expr…

We found a viral Trojan Horse: a virus can hide inside another virus.This one surprised us: deltaviruses don’t just borrow a helper virus. They can travel inside it.
A literal Trojan Horse “virus-in-a-virus” route into cells. 🤯 Kudos to 1st author @viroscope.bsky.social and co-authors !

06.03.2026 18:29 👍 188 🔁 96 💬 8 📌 14
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A symbiotic origin of the ribosome? Abstract. The origin of life is one of the great mysteries of science. Of the multiple unsolved problems, the origin of the translation system (the means b

"we propose that the protoribosome was a parasite (...). If this view is correct, then like the spliceosome in the stem eukaryote, a repurposed host-parasite interaction led to a dramatic change in cell biology at the base of the tree of life, in this case leading to the exit from an RNA world"

02.03.2026 18:43 👍 31 🔁 15 💬 1 📌 0
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Paper alert from @codyz.bsky.social y.social and Yang Liu. New mechanism for chromatin remodeling by ATRX. Super cool story. Congrats to #lugerlab alumni.
www.biorxiv.org/content/10.6...

28.02.2026 01:39 👍 27 🔁 8 💬 0 📌 0

We wrote a perspective "How to build the regulatory genome: a constructionist guide to the cis-regulatory code", out in Development yesterday. Title says it all. Find it here:

journals.biologists.com/dev/article/...

25.02.2026 15:18 👍 37 🔁 17 💬 1 📌 1
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Post-replicative chromatin accessibility predicts cell fate change Knudsen and colleagues use repli-ATAC-seq to compare replicated and unreplicated chromatin in two models of cell identity change. They find that lineage-specific elements are accessible earlier in rep...

DNA replication globally disrupts the epigenome. But does this create a chromatin-access opportunity for TF binding to facilitate cell identity change? Now 𝐫𝐞𝐩𝐥𝐢-𝐀𝐓𝐀𝐂-𝐬𝐞𝐪 shows 𝘥𝘦 𝘯𝘰𝘷𝘰 chromatin opening & TF binding occurs specifically post-replication, in cellular differentiation & reprogramming!

25.02.2026 18:50 👍 67 🔁 26 💬 1 📌 0
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Chromatin spatial analysis by METALoci unveils sex-determining 3D regulatory hubs Nature Structural & Molecular Biology - METALoci, a new three-dimensional genome computational tool, reveals a major rewiring of regulatory interactions during sex determination. By combining...

🤩💪 Out now! 3D regulatory hubs in sex determination

With @mamartirenom.bsky.social & Capel labs, led by @imotagom.bsky.social & @jrotwitguez.bsky.social

1️⃣ METALoci – explore #3DGenome 🧬
2️⃣ Non-coding region controlling Fgf9 🧩
3️⃣ Meis genes = new key players 🌟

👉 rdcu.be/e5sm2

1/n Bluetorial 👇

24.02.2026 14:02 👍 59 🔁 26 💬 1 📌 2
An intrinsically disordered region mediates RNA-binding selectivity and cellular activities of LARP6 - Nature Communications LARP6 is an EMT-associated RNA-binding protein with diverse RNA targets. Here, the authors show that the N-terminal disordered region of LARP6 promotes RNA-binding selectivity by modulating the adjace...

🎉Proud to present our latest paper, out now in Nature Communications: www.nature.com/articles/s41...

RNA Binding Proteins (RBPs) are often full of intrinsically disordered regions (IDRs), but what these regions do during RNA recognition is often unclear. 1/10
#RNA #IDR #RBP

21.02.2026 23:31 👍 75 🔁 33 💬 1 📌 4
Redirecting

Our most recent work on the “function and evolution” of #nuclear-speckles is now online at Cell @cp-cell.bsky.social
doi.org/10.1016/j.ce...
Read the thread👇 for the highlights of our findings.

25.02.2026 16:01 👍 122 🔁 59 💬 9 📌 5

..and the Cook with the suppurating wound to put us off.

23.02.2026 00:20 👍 1 🔁 0 💬 0 📌 0

They dangled the wife of Bath’s tale to lure us in.

23.02.2026 00:16 👍 1 🔁 0 💬 1 📌 0

Who knew that the ability to handle belligerent, incoherent people is a key to Congressional success?

16.02.2026 11:31 👍 0 🔁 0 💬 0 📌 0

Ethel Merman volume.

16.02.2026 04:41 👍 0 🔁 0 💬 0 📌 0
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Even amid rising economic uncertainty, now is not the time to hug your job | Gene Marks In a rapidly changing job market, it’s not necessarily good for workers to cling to their current employment

‘Who moved my cheese?’ 2026

16.02.2026 04:33 👍 0 🔁 0 💬 0 📌 0

💯Jim Webb wannabe

16.02.2026 04:00 👍 1 🔁 0 💬 0 📌 0

..also, who is this increased capacity for?

16.02.2026 03:55 👍 1 🔁 0 💬 0 📌 0

“experience” is the #1 enemy of these times. #Lysenko

16.02.2026 03:50 👍 1 🔁 1 💬 0 📌 0

*Council* on Foreign Relations.

15.02.2026 18:47 👍 0 🔁 0 💬 0 📌 0

Maybe worth noting the history of members of the Consul on Foreign Relations

15.02.2026 18:45 👍 0 🔁 0 💬 1 📌 0

Hilarity should sue for damages 😉

14.02.2026 22:06 👍 1 🔁 0 💬 0 📌 0

They seem to lack character or identity, hence the image-chasing.

14.02.2026 22:02 👍 2 🔁 0 💬 0 📌 0

Not a single shared value among them.

14.02.2026 21:54 👍 2 🔁 0 💬 0 📌 0
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Dozens of researchers will move to France from US following high-profile bid to lure talent Large proportion worked at Columbia University, which had its grants cut and frozen by the administration of US President Donald Trump.
10.02.2026 21:22 👍 0 🔁 0 💬 0 📌 0

🎯 ’conductivity probe’ listed on the order also suggests this.

10.02.2026 12:53 👍 4 🔁 0 💬 0 📌 0

Unless you’re buying deep-discount books at Costco 😉

08.02.2026 19:42 👍 0 🔁 0 💬 0 📌 0

‘Bubble Trump’

08.02.2026 19:38 👍 0 🔁 0 💬 0 📌 0

The amount of exposure of the victims vs perpetrators is too high & counting with each release.

08.02.2026 19:34 👍 0 🔁 0 💬 0 📌 0

🎯

08.02.2026 19:30 👍 1 🔁 0 💬 0 📌 0

yes, there’s that 😉

08.02.2026 19:29 👍 1 🔁 0 💬 0 📌 0

RFK Jr. has the dietary discrimination of a seagull at low tide.

08.02.2026 19:21 👍 4 🔁 0 💬 0 📌 0

Remove ‘Black history’ from the shortest month of the year while removing Black history from America’s historical markers. ‘Mission Accomplished’

08.02.2026 19:16 👍 4 🔁 0 💬 0 📌 0