Dimerization of the SP1 Region of HIV-1 Gag Induces a Helical Conformation and Association into Helical Bundles: Implications for Particle Assembly. - Datta SA; Clark PK; Fan L; Ma B; Harvin DP; Sowder RC 2nd; Nussinov R; Wang YX; Rein A (Journal of virology, 2015)