(C) Representative image showing the binding of recombinant STING protein to compounds printed on HTS chip. The SMM chip was titrated to purified STING protein observing emission from 300 to 400 nm at 1nm intervals (excitation 290 nm). Scans were done in triplicates per sample. Excitation and emission slits were set to 5 nm. A2 = 8J19; A3 =10A9; A4 =9O17; A5 =3C17; A6 =7H8; A7 =8G10; A8 =9H14; A9=10G10; A10 =7D21; A11 =9J12; B2 =9L12; B3 =7H21; B4 =2B8; B5 =9D14; B6 =9P7; B7 =2E22; B8 =7P6; B9 =7I21. 