P2A

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2A peptides are a class of 18–22 aa-long peptides, which can induce ribosomal skipping during translation of a protein in a biological cell. These peptides share a core sequence motif of DxExNPGP, and are found in a wide range of viral families. 2A peptides can be introduced artificially to help generate polyproteins from a single ORF, by causing the ribosome to fail at making a peptide bond, and then resume translation.

Fuente: Wikipedia