isoleucine
Coverage of isoleucine in the Nexus archive.
- Living longer could hinge on one surprising dietary change, study review suggests
A new study review suggests that reducing protein intake, rather than cutting calories, may improve metabolic health and longevity for sedentary adults. Lower protein consumption was linked to benefits like reduced cellular damage and improved metabolism, driven by a hormone called FGF21. The review highlights three amino acids (methionine, isoleucine, valine) that may contribute to aging-related pathways when consumed in excess by inactive individuals.
- Researchers try to cut the genetic code from 20 to 19 amino acids
Researchers from Columbia and Harvard engineered a portion of the ribosome to function without the essential amino acid isoleucine, aiming to test hypotheses about the evolution of the genetic code. The study explores whether life's universal genetic code, which encodes 20 amino acids, originally used fewer, potentially shedding light on early life's development.