posttranslaatio
Posttranslation is a crucial stage in gene expression that occurs after protein synthesis. During translation, ribosomes assemble amino acids into polypeptide chains based on the mRNA sequence. However, the newly synthesized polypeptide, or primary transcript, is often not yet functional. Posttranslational modifications are chemical alterations that occur to proteins after their synthesis. These modifications can significantly alter a protein's structure, function, stability, and localization within the cell.
There are a wide variety of posttranslational modifications, with over 200 known types. Some of the most
The types and extent of posttranslational modifications are highly specific to each protein and the cellular