Edoardo Gianni

@edogia.bsky.social

Postdoc @mrclmb.bsky.social playing around in the #RNAworld. Interested in how self-replicating chemical systems can emerge and start evolving. Born at 358ppm. (He/him)

Proud to share the yeast telomerase structure, led by the talented @hongmiaohu.bsky.social in collaboration with the Wellinger and Chartrand labs. Discovered 37 years ago and took us nearly 7 years but totally worth the wait 😍. www.science.org/doi/10.1126/... www.youtube.com/watch?v=gFE4...

Cryo-EM structure of yeast telomerase

YouTube video by MRC Laboratory of Molecular Biology

youtube.com

MRC Laboratory of Molecular Biology@mrclmb.ac.uk · 4mo ago

Led by Investigator Scientist @hongmiaohu.bsky.social, @kellythd-nguyen.bsky.social’s group in the LMB’s Structural Studies Division have produced the first ever structure of telomerase from yeast. Read more here: mrclmb.ac.uk/news-events/... #LMBResearch #cryoEM 🧪

With Eugene Koonin, we propose a concept of “the selfish ribosome”, under which evolution of life is viewed as a ribosomal takeover, where the ribosome evolved to consume most of the cell’s resources, while other cellular componentry ensures the propagation of the ribosome. arxiv.org/abs/2602.23268

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How could a simple self-replicating system emerge at the origins of life? RNA polymerase ribozymes can replicate RNA, but existing ones are so large that their self-replication seems impossible. Could they be smaller? Excited to share our latest work in @science.org on a new small polymerase. 1/n

A small polymerase ribozyme that can synthesize itself and its complementary strand

The emergence of a chemical system capable of self-replication and evolution is a critical event in the origin of life. RNA polymerase ribozymes can replicate RNA, but their large size and structural ...

science.org

we recently found some really neat RNA-guided DNA-cutting systems in phages. Despite remarkable similarities to CRISPR systems, including encoding guide RNAs in arrays, they appear entirely evolutionarily distinct (but definitely related to snoRNAs 🤓) We decided to call them TIGR-Tas systems 🐯