O-glycosylation of SARS-CoV-2 spike protein by host <?A3B2 pi6?>O-glycosyltransferase strengthens its trimeric structure oleh Xu Zhijue, Zhang Han, Tian Jiaqi, Ku Xin, Wei Rumeng, Hou Jingli, Zhang Can, Yang Fang, Zou Xia, Li Yang, Kaji Hiroyuki, Tao Sheng-Ce, Kuno Atsushi, Yan Wei, Da Lin-Tai, Zhang Yan