BIRC6 and infection: The fluorescence intensity generated by JC-1 monomers decreased, while those of JC-1 aggregates increased, in IPEC-J2lv-circBIRC6-2, IPEC-J2lv-circBIRC6-2-Flag, and IPEC-J2lv-Flag-BIRC6-236aa cells compared with pCD513B-1 cells after TGEV infection (Fig. 6, C and D), indicating that BIRC6-236aa inhibits the decrease in MMP induced by TGEV.