Scientists Used A.I. to Redesign a Microbe's Machinery to Function Without a Key Ingredient of Life
Researchers have utilized artificial intelligence to redesign a bacterium's machinery to function without a crucial amino acid. This significant advancement in synthetic biology offers insights into how early life on Earth may have existed. Although the study did not create a fully functional cell with fewer amino acids, it marks an important step in understanding the fundamental building blocks of life.
- ▪The study focused on the bacterium Escherichia coli and aimed to remove isoleucine from its proteins.
- ▪Using AI, researchers successfully created a version of the bacterium that could function with 21 ribosomal proteins lacking isoleucine.
- ▪The modified strain, called Ec19, maintained its genetic changes over 450 generations.
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Scientists Used A.I. to Redesign a Microbe’s Machinery to Function Without a Key Ingredient of Life Although the researchers did not create an entire cell that could function without a crucial building block, the findings represent a big step in synthetic biology and provide a glimpse at how Earth’s earliest organisms may have lived Sara Hashemi | Daily Correspondent May 27, 2026 11:46 a.m. ShareCopy linkEmailSMSFacebookXRedditLinkedInBlueskyPrintAdd as preferred source Scientists carried out their experiments in the bacterium Escherichia coli. Cells of the species are artificially colored blue in this microscope image.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Smithsonian Magazine.