Viral lipid envelope (None commonly used)

The viral lipid envelope is a lipid bilayer structure that surrounds the capsid of many viruses, derived from the host cell membrane during viral budding. It contains embedded viral proteins (often glycoproteins known as "spike proteins") critical for virus recognition, attachment, and entry into host cells. The composition typically includes phospholipids, cholesterol, and aminophospholipids (such as phosphatidylserine and phosphatidylethanolamine), the specific proportions varying between viruses[1][2][3]. This envelope may help the virus evade immune detection, mediate fusion with the host cell membrane, and is sensitive to solvents, detergents, and specific antiviral agents. As it is essential for infectivity in many enveloped viruses, the lipid envelope or its components are studied as antiviral drug targets and vaccine components, though targeting must distinguish viral from host membranes to avoid toxicity.

Other names

Viral envelopeLipid envelopeEnvelope membrane

Destabilization or disruption of the viral lipid envelope, leading to loss of infectivity. Blocking membrane fusion required for virus entry. Targeting externalized phospholipids (PS, PE) to trigger immune clearance or block function.