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Sawsan Wehbi

@seekingluca.bsky.social
76 followers 16 following 1 posts

PhD Student at the University of Arizona Genetics and Astrobiology

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Sawsan Wehbi @seekingluca.bsky.social · 17/12/2024
glutamine (and its derivatives) could still be present in the cell and used as an amide donor. Our results show that its incorporation into the code was late but that does not necessarily mean it was absent.
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Reposted by Sawsan Wehbi
Joanna Masel @joannamasel.bsky.social · 12/12/2024
We identified protein domains in LUCA (Last Universal Common Ancestor). Their distinctive amino acid usage reveals the order amino acids were added to the genetic code, based mostly on size. Older proteins hint at earlier alternative codes. 1/15 @seekingluca.bsky.social www.pnas.org/doi/10.1073/...
pnas.org
Order of amino acid recruitment into the genetic code resolved by last universal common ancestor’s protein domains | PNAS
The current “consensus” order in which amino acids were added to the genetic code is based on potentially biased criteria, such as the absence of s...
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