a.a. U has various meanings in the Medical category. Discover the full forms, definitions, and usage contexts of a.a. U in Medical.
Selenocysteine is the 21st proteinogenic amino acid. It exists naturally in all kingdoms of life as a building block of selenoproteins. Selenocysteine is a cysteine analogue with a selenium-containing selenol group in place of the sulfur-containing thiol group.
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