The SARS-unique domain (SUD) of SARS coronavirus contains two macrodomains that bind G-quadruplexes.
Plos Pathogens
Tan, Jinzhi J; Vonrhein, Clemens C; Smart, Oliver S OS; Bricogne, Gerard G; Bollati, Michela M; Kusov, Yuri Y; Hansen, Guido G; Mesters, Jeroen R JR; Schmidt, Christian L CL; Hilgenfeld, Rolf R