SDS PAGE of isolated Ad2 (source, U. Greber).  For further information see (1; 2). 

(1). van Oostrum, J., and Burnett, R. M. (1985) J. Virol. 56, 439-448.
(2). Burnett, R. M. (1997) in The structure of adenovirus, eds. W. Chiu, R. M. Burnett and R. L. Garcea (Oxford Press, Oxford), pp. 209-238.