- Effects of S-adenosylhomocysteine and analogs on Epstein-Barr virus-induced transformation, expression of the Epstein-Barr virus capsid antigen, and methylation of Epstein-Barr virus DNA. Long, W.K., Fronko, G.E., Lindemeyer, R.G., Wu, B., Henderson, E.E. J. Virol. (1987)