Overview:

The V5 epitope tag (GKPIPNPLLGLDST) consists of 14 highly charged amino acid residues originating from the C-terminus end of the P and V proteins of the simian virus 5, of the paramyxovirus family [1].This tag is widely employed because of the highly specific antibodies that can be generated against it [2].

References:

1.Southern, J.A. et al., Identification of an epitope on the P and V proteins of simian virus 5 that distinguishes between two isolates with different biological characteristics, J. Gen. Virol. 72, 1991; (7), pp. 1551–1557.2.Thomas, M, et al., Baculovirus expression of HCoV-OC43 nucleocapsid protein and development of a Western blot assay for detection of human antibodies against HCoV-OC43, J. of Virol. Methods Vol. 139, (2), Feb. 2007; pp. 175-180.