Synonyms: protein modification
Definition: The covalent alteration of one or more amino acids occurring in proteins, peptides and nascent polypeptides (co-translational, post-translational modifications). Includes the modification of charged tRNAs that are destined to occur in a protein (pre-translation modification).
GO:0006464 - cellular protein modification process (103)
Unification Links: GO:0036211
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