
The EMBO Journal, Год журнала: 2025, Номер unknown
Опубликована: Фев. 7, 2025
Abstract L-arginine is the most nitrogen-rich amino acid, acting as a key precursor for synthesis of nitrogen-containing metabolites and an essential intermediate in clearance excess nitrogen. Arginine’s side chain possesses guanidino group which has unique biochemical properties, plays primary role nitrogen excretion (urea), cellular signaling (nitric oxide) energy buffering (phosphocreatine). The post-translational modification protein-incorporated arginine by guanidino-group methylation also contributes to epigenetic gene control. Most human cells do not synthesize sufficient meet demand are dependent on exogenous arginine. Thus, dietary important maintaining health, particularly upon physiologic stress. How adapt changes extracellular availability unclear, mostly because nearly all tissue culture media supplemented with supraphysiologic levels Evidence emerging that arginine-deficiency can influence disease progression. Here, we review new insights into importance metabolite, emphasizing central mitochondria synthesis/catabolism recent discovery act molecule regulating expression organelle dynamics.
Язык: Английский