CGAS and infection: Indeed, HCMV encodes 9 proteins known to inactivate the cGAS/STING/TBK1 pathway that are among the ∼200 proteins expressed during productive infections of highly differentiated cells: UL31 (13), UL35 (11), UL42 (12), UL48 (18), UL82 (pp71) (19, 20), UL83 (pp65) (21), UL94 (22), UL122 (IE2) (14), and Us9 (10).