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| Description: 1. By blocking sites of ubiquitination, methylation evidently helps protect proteins from turnover. 2. Spontaneous damage of protein molecules during aging causes deamidation, isomerization, and racemization of their asparagine and aspartate residues. A methylation reaction can initiate the repair of these damaged residues. Picture Stats: Views: 314 Filesize: 46.88kB Height: 845 Width: 225 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34778 |