When expressing more than one gene in a cell line, often bicistronic expression vectors with an internal ribosomal entry site (IRES) are used. Instead of these large IRES sequences, a much shorter, self-cleaving 2A peptide (P2A) can be used. The efficient cleaving activity of this peptide was described in Kim et al. (2011; PMID: 21602908).
To make the advantages of the P2A peptide available for all scientists, BCCM/LMBP is proud to announce the bicistronic pEF6-P2A cloning vector.