Canadian Medical Guide > Chemicals and Drugs > Amino Acids, Peptides, and Proteins > Proteins > Viral Proteins > Viral Structural Proteins Terms and Definitions

Viral Structural Proteins

Medical Definition:	Viral proteins that do not regulate transcription. They are coded by viral structural genes and include nucleocapsid core proteins (gag proteins), enzymes (pol proteins), and membrane components (env proteins). Transcription of viral structural genes is regulated by viral regulatory proteins.
Guide Notes:	IM; coord with specific virus (IM); /drug eff /ultrastruct permitted
Also Called:	Simian Virus 40 Virion Protein 1,Viral Structural Proteins VP,VP(1),VP(6),Polypeptide VP1, Structural,VP(2),VP(3),VP(7)
Previously Indexed:	Viral Proteins (1973-1989)

Viral Structural Proteins Categories.

	Nucleocapsid Proteins - Viral proteins found in either the NUCLEOCAPSID or the viral core (VIRAL CORE PROTEINS).
	Viral Envelope Proteins - 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.
	Viral Tail Proteins - Proteins found in the tail sections of DNA and RNA viruses. It is believed that these proteins play a role in directing chain folding and assembly of polypeptide chains.

Viral Structural Proteins Medical Definitions and Terms

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