Pedro Santamaria
@p-santamaria.bsky.social
110 followers 230 following 830 posts
Retired researcher in Developmental Genetics, Evo-Devo. Drosophila. Polycomb Group. (PRC genes). Finder of "polyhomeotic", Nuclear transplantation in the egg and epigenesis of Drosophila. Start at CSIC (Antonio Garcia Bellido) --> CNRS (M. Zalokar) etc.
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p-santamaria.bsky.social
Diversification of Polycomb protein complexes combined with feedback loop mechanisms involving histone modification cross-talk equips the system with the plasticity, adaptability, and buffering capacity needed to safeguard cell fate decisions during development

genesdev.cshlp.org/content/earl...
Histone modification cross-talk and protein complex diversification confer plasticity to Polycomb repression
A biweekly scientific journal publishing high-quality research in molecular biology and genetics, cancer biology, biochemistry, and related fields
genesdev.cshlp.org
p-santamaria.bsky.social
Interesting for Development (cell determination and differentiation) : "SCOPE provides a system for uncovering cell context–dependent, site-specific genome regulators, offering valuable insights into gene regulation networks driving CELL FATE TRANSITIONS."

www.pnas.org/doi/10.1073/...
A chemical epigenetic tool to probe site-specific DNA-binding protein complexes | PNAS
Site-specific DNA binding by proteins is critical for regulating transcriptional activity and cell fate decision. However, identifying proteins bou...
www.pnas.org
Reposted by Pedro Santamaria
johninnescentre.bsky.social
VACANCY - We have an opportunity for a Postdoctoral Researcher to join the Howard Group, working to develop computational models of epigenetic dynamics in the Polycomb system.

www.jic.ac.uk/vacancies/po...

Closing date - 9 November 2025
Salary - £37,500 - £45,350
Contract - 36 months, full-time
Postdoctoral Researcher (Howard Group) | John Innes Centre
An exciting opportunity has arisen for a Postdoctoral Researcher to join the Howard Group at the John Innes Centre, working on cutting-edge science in the field of Computational and Systems Biology.
www.jic.ac.uk
p-santamaria.bsky.social
Engaging in a creative pastime can slow brain ageing, according to a study (here ⬇️). But, better than dance the tango... When I stop injecting Drosophila eggs (to make chimeras f.i.) ... I made mosaics !

www.nature.com/articles/d41...
p-santamaria.bsky.social
For a intelligent person it is not possible to believe the absurdity that constitute the foundations of most known religions. So : either, you choose voluntarily "dumb" people as presidents... or either, you assume that all of them are liars !

www.graphsaboutreligion.com/p/how-import...
How Important is the President's Faith?
And would we ever elect an atheist?
www.graphsaboutreligion.com
p-santamaria.bsky.social
Toutes les procédures que j'essaye ( pour les cuire et les peler) sont foireuses.
Et pourtant mes arrière-arrière grand-parents, eux, se delectaient.
p-santamaria.bsky.social
Photo de Trudi Schüpbach. Reproduit avec l'autorisation de la Revue annuelle de biologie cellulaire et du développement ( Wieschaus et Nüsslein-Volhard, 2016 )
p-santamaria.bsky.social
Eric Wieschaus and Christiane Nüsslein-Volhard in 1979 ! (I was there).

journals.biologists.com/dev/article/...
p-santamaria.bsky.social
For the next week, but no prize is faultless. Researchers tend to work in teams, and yet most prizes, not just the Nobels, single out individuals for plaudits. And when an idea is "ready", it becomes ready for many people, but only one person sells it opportunelly.

www.nature.com/articles/d41...
These science prizes want to rival the Nobels: how do they compare?
Being named as a Nobel laureate is the ultimate prize for many scientists, but how do other science prizes compare?
www.nature.com
p-santamaria.bsky.social
“ It is our fundamental democratic right to choose what we believe, free from government interference. The law guarantees these rights which are under attack by the Trump Administration’s extreme right-wing and Christian nationalist agenda.”

ansari.house.gov/media/press-...
Ansari, Huffman, Raskin Co-Lead Resolution Defending Separation of Church and State | U.S. House Representative Yassamin Ansari
The Official U.S. Congressional website of Congresswoman Yassamin Ansari
ansari.house.gov
p-santamaria.bsky.social
Mi profesor en la Complutense en... 1967 ! (Todavía sin Atapuerca, pero magníficas escursiones).
p-santamaria.bsky.social
Crocus "autumnale", today, Gif sur Yvette, France.