This study adopted bioinformatics methods to analyzes and prognoses the physicochemical properties, structural characteristics,and antigen epitopes of transmembrane protease serine 2 (TMPRSS2),to provide references for medicine research and development against SARS-CoV-2. The physicochemical properties of TMPRSS2 were analyzed and predicted adopting ProtParam and ProtScale; the structural and functional structures of TMPRSS2 protease were analyzed and predicted using servers of COILS Server,SignalP,TMPred,TargetP Server, NetPhos Server,Net-NGlyc Server; the high-level structure of TMPRSS2 prot...