Human metapneumovirus fusion protein (hMPV F)

The Human metapneumovirus (hMPV) fusion protein is a critical class I viral fusion glycoprotein located on the surface of the hMPV virion. It facilitates viral entry into host respiratory epithelial cells by mediating the fusion of the viral envelope with the host cell membrane. The protein exists in a metastable pre-fusion conformation and undergoes a dramatic structural rearrangement to a stable post-fusion state to drive the fusion process. Because it is highly conserved across hMPV lineages and is the primary target for neutralizing antibodies, it serves as the focal point for the development of vaccines and prophylactic monoclonal antibodies. Neutralizing epitopes on the F protein, particularly those unique to the pre-fusion form (such as Site Ø and Site V), are essential for eliciting a potent immune response to prevent lower respiratory tract infections in vulnerable populations like infants and the elderly.

Other names

hMPV fusion glycoproteinhMPV F proteinFusion glycoproteinF protein

Monoclonal antibodies target specific neutralizing epitopes on the F protein to prevent the conformational change from pre-fusion to post-fusion states, thereby blocking viral-cell membrane fusion and entry.