Atezolizumab Biosimilar, Human IgG4 S228P Mutant
Atezolizumab Biosimilar, Human IgG4 S228P Mutant. The research grade Atezolizumab biosimilar protein is for research use only (RUO). Recombinant human IgG1 isotype controls are available. Atezolizumab but not durvalumab binds and blocks mouse PD-L1.