Roberto Vázquez Núñez

New preprint from Dodonova lab 🔔! Capturing multiple states by cryo-EM❄️, we show for the first time how archaeal RNA Polymerase engages a nucleosome and forms direct contacts with histones! 🧬 Great work by Gabriele & a fantastic collaboration with Dina Grohmann! 🧵 www.biorxiv.org/content/10.6...

New preprint: in the last bit of my graduate work in the @voslab.org, we describe the mechanism for how BRD4 engages with P-TEFb in the context of regulating early RNA Pol II elongation. Read more here: www.biorxiv.org/content/10.6...

⚡Preprint alert⚡ So proud of @amohamed98.bsky.social! Abdallah determined the cryo-EM structure of BRD4 bound to the kinase P-TEFb, defining the molecular basis of this key transcription interaction — and revealing that BRD4 and AFF4 binding are mutually exclusive to P-TEFb. Lots more inside 👇

See you on Wednesday!!

🎤 #FragileNucleosome is back next Wednesday! Hope you enjoyed the summer!Join us next 📅Wednesday to hear about 🧬fascinating research from @mpalamin.bsky.social from Krebs lab and @robertovn.bsky.social from Vos lab. To register if you haven't before: us06web.zoom.us/webinar/regi...

🧵 We’re excited to share our new bioRxiv preprint on how INO80 reads promoter-proximal DNA sequence features to position +1 nucleosomes 🧬 Amazing work by Mariia, Annika, and others! 🤩 🔗 www.biorxiv.org/content/10.6... #ChromatinBiology #StructuralBiology #Nucleosome #INO80

Happy to share the first paper from my postdoc in the Darst and Campbell labs! 🧵 www.pnas.org/doi/full/10.... We used cryo-EM and allosteric inhibitors as mechanistic probes to visualize conformational landscapes of E. coli and M. tuberculosis RNA polymerases during nucleotide addition. 1/4

The OMB’s proposals will give the president shocking control over who can get scientific funding and what it can be used for. We need to flood the comment section before July 13th. Read more and submit your comment here: elkodaily.com/news/local/c... www.regulations.gov/commenton/OM...

The Kaplan Lab at the University of Pittsburgh has received funds to recruit a postdoctoral fellow to establish a multiplexed assay of variant effect for a disease gene. This relates to our studies on RNA Polymerase II. This project requires experience with human cell lines and genomics 1/

We just started our summer break, but we're also planning our September-December seminar schedule! If you have an exciting chromatin/transcription story that will be ready for the spotlight by then, use the survey below to nominate yourself to give a #FNucleosome talk 🧬🧬 forms.gle/1EKYN2Nt79ar...

Glad to have presented my postdoctoral work from the @voslab.org lab in the last machines on genes conference. Thank you to the organizers and to the @biochemsoc.bsky.social for the opportunity and for bringing us to beautiful Crete. #Biochemevents

Help please! We need to do some large(ish) cell culture inhibiting E-cadherin with a monoclonal antibody. Does anyone have the DECMA-1 hybridoma cell line so we could purify our own antibody? or a similar monoclonal that would do the job. Any help greatly appreciated, just DM me. Please repost!

It's long overdue, but I'm back to writing about science, starting with how science gets funded (aka grants). "Fun" fact: even before current cuts to science funding, less than 1% of the federal budget went to science grants. elkodaily.com/news/local/a...

Cell-free genomics reveals fundamental regulatory principles of the Mycobacterium tuberculosis transcription cycle

🚨New preprint! We built a cell-free genomics platform (GATO-seq) to probe transcriptional regulation and discovered a “super pause” sequence that triggers a new Pol II active-site conformation. Huge shout-out to @robertovn.bsky.social for pulling off this monster of a project. tinyurl.com/superpause

How do SMC complexes load onto DNA to get ready for loop extrusion? @roisnehamelinf.bsky.social & co discovered that Wadjet, an SMC complex involved in bacterial DNA immunity, performs some impressive molecular gymnastics 🤸‍♂️🤸‍♂️🤸‍♂️. Check out the new paper: www.cell.com/molecular-ce...

🧬 Ever wonder how metres of #DNA 🧬 fit into a single cell? @gruberlab.bsky.social, working at @unil.bsky.social uncovered how protein machines fold DNA into loops – key for cell division & genome stability. Learn more 👉 buff.ly/PrfdXnr #BioTech #Chromosomes #Crystallography #GeneEditing 🧪

We wrapped up our most successful year to date at Symbiotic STEM! Check out what we accomplished at symbioticstem.org 🌱🌱