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Low Arginine Jammed the Cell's Antigen-Display Machinery
Cell and disease models show how scarcity of one amino acid can stall production of arginine-rich MHC-I proteins.
Summary
Cell and disease models show how scarcity of one amino acid can stall production of arginine-rich MHC-I proteins.
Rockefeller University researchers report that low arginine stalls ribosomes while they translate arginine-rich MHC-I, or HLA, proteins, reducing the antigen display that helps immune cells spot threats. The team observed the mechanism in cell, cancer, influenza and SARS-CoV-2 models, and moderate supplementation rescued gene expression experimentally. The work is mechanistic and is not clinical advice to take arginine supplements.
Why it matters
Cell and disease models show how scarcity of one amino acid can stall production of arginine-rich MHC-I proteins.
Limits and context
- The work is mechanistic and is not clinical advice to take arginine supplements.
Key claims
Cell and disease models show how scarcity of one amino acid can stall production of arginine-rich MHC-I proteins.
Qualification: The work is mechanistic and is not clinical advice to take arginine supplements.
Evidence: source-2026-08-01-009
Sources
- Rockefeller University via Newswise: Arginine and MHC-I translationRockefeller University via Newswise · official announcement
Corrections
No corrections have been recorded for this story.