A17L, a viral envelope protein, is a core structural component critical to the assembly and release of the Monkeypox virus. As a key player in the morphogenesis of the viral envelope, A17L is indispensable for viral replication and infectivity. The A17L protein plays a critical role in the lifecycle of the Monkeypox virus (MPXV), making it an essential target for research aimed at understanding viral mechanisms and developing tools for diagnostic and analytical applications.