Viral entry (conformational epitope prior to fusion)

The target "Viral entry (conformational epitope prior to fusion)" refers to specific structural features—epitopes—on viral surface proteins that are present in their native, prefusion conformation. These epitopes are exposed before the virus fuses with the host cell membrane and are often critical for initiating infection. They serve as key targets for neutralizing antibodies and vaccine design because they represent vulnerable sites on the virus before it undergoes major conformational changes required for membrane fusion.

Other names

Prefusion viral protein epitopeViral fusion protein (prefusion conformation)Conformational epitope on viral fusion proteinViral surface protein pre-fusion epitopePre-fusion viral spike protein epitope

Antibodies bind to the prefusion conformation, blocking receptor engagement or subsequent conformational changes required for membrane fusion.