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Amino acid diversity in peptides and proteins over time. Now, in the era of biotechnology, the amino acid alphabet is poised to expand again. (Figure Credit: “The borderlands of foldability: lessons from simplified proteins,” Trends in Chemistry, 2026)
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Amino acid diversity in peptides and proteins over time. Over time, the genetic code expanded into the 20-amino acid alphabet found in contemporary biology. Now, in the era of biotechnology, the amino acid alphabet is poised to expand once more. (Figure Credit: “The borderlands of foldability: lessons from simplified proteins,” Koh Seya, Alfie‑Louise R. Brownless, Shina C. L. Kamerlin, and Liam M. Longo, Trends in Chemistry, 2026)