Used in research to block SARS-CoV-2 viral entry by targeting the ACE2 receptor, preventing virus-host cell interaction. Employed in immunoassays and diagnostic tools to study ACE2 expression in tissues. Supports therapeutic development by evaluating neutralization efficacy in cell-based models. Applied in immunohistochemistry and flow cytometry for detection and quantification of ACE2 in human and animal samples. Also utilized in studies exploring cardiovascular and pulmonary diseases where ACE2 plays a regulatory role.