Apamistamab is a CHO-expressed human antibody that targets PTPRC/CD45. Apamistamab carries a huIgG1 type heavy chain and a huκ type light chain, with a predicted molecular weight (MW) of 146.52 kDa. The isotype control for Apamistamab can refer to Human IgG1 kappa, Isotype Control (HY-P99001).