Used in research and development of vaccines and antiviral therapies targeting the Monkeypox virus. The M1R protein with mFc tag serves as a key antigenic target for immune response studies, enabling the detection and quantification of neutralizing antibodies in infected or vaccinated individuals. It supports serological assay development, including ELISA and lateral flow tests, to monitor immune responses. The fusion with mFc enhances protein stability and facilitates purification and detection in experimental systems. Widely applied in virology and immunology research to understand viral entry mechanisms and host immune interactions.