TP53BP1 and infection: eGFP-tagged recombinant SVV (rSVV-eGFP) infection-induced γH2AX foci accumulation was accompanied by co-localization with p-ATM in nuclear foci (Fig. 6H), while γH2AX foci accumulation was not accompanied by co-localizing 53BP1 foci in rSVV-eGFP infected BHK-21 cells (Fig. 6I).