Autologous and nonautologous patterns of core NEC protein nuclear rim colocalization: selected examples derived from α-, β- and γ-Herpesvirinae. Various combinations of NEC interactions were analyzed on the basis of pairwise transient cotransfection of NEC-encoding expression plasmids, i.e., α-herpesviral pUL34/Orf24, pUL31/Orf27 (HSV-1/VZV); β-herpesviral pUL50/pM50, pUL53/pM53 (HCMV/MCMV); γ-herpesviral BFRF1/Orf67, BFLF2/Orf69 (EBV/ KSHV). Confocal microscopic evaluation of rim-like nuclear envelope colocalization of autologous/ nonautologous core NEC pairs, transiently coexpressed in HeLa cells. Localization phenotypes: -, colocalization in < 5% of cells; ±, 5%-25%; +, 25.1%-75%; ++, >75%.