Viral Envelope Proteins [Chemical/Ingredient] C291810 N0000011453 11215 Viral Envelope Proteins Envelope Proteins, Viral Viral Envelope Proteins D014759 Virus Envelope Proteins C0042711 Layers of protein which surround the capsid in animal viruses with tubular nucleocapsids. The envelope consists of an inner layer of lipids and virus specified proteins also called membrane or matrix proteins. The outer layer consists of one or more types of morphological subunits called peplomers which project from the viral envelope; this layer always consists of glycoproteins. M0022717 Viral Structural Proteins [Chemical/Ingredient]