The structural proteins of vesicular stomatitis virus (VSV) Indiana, VSV New Jersey, Chandipura virus and Piry virus were compared by using two different SDS-polyacrylamide gel electrophoresis systems. The G and M proteins of the Indiana serotype had different electrophoretic mobilities from the corresponding proteins of VSV New Jersey, Chandipura virus and Piry virus in a continuous-SDS (CONT-SDS) gel system. The three major proteins of VSV Indiana G, N and M, were distinctly different from their counterpart proteins in the other three viruses when a high-resolution discontinuous-SDS (DISC-SDS) system was used. Chandipura and Piry virus glycoproteins migrated differently when co-electrophoresed in the CONT-SDS system, whereas both their N and M proteins were different in the DISC-SDS method. During infection both Chandipura and Piry viruses produced defective T particles which contained the same four structural proteins as virus particles.


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