picornain 2A; picornavirus endopeptidase 2A; poliovirus protease 2A; rhinovirus protease 2A; 2A protease; 2A proteinase; protease 2A; proteinase 2Apro; picornaviral 2A proteinase; Y-G proteinase 2A; poliovirus proteinase 2A; poliovirus protease 2Apr • • •