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The term viral protein refers to both the products of the genome of a virus and any host proteins incorporated into the viral particle. Viral proteins are grouped according to their functions, and groups of viral proteins include structural proteins , nonstructural proteins , regulatory proteins , and accessory proteins. [ 1 ]
Viral protein class (11 P) Viral regulatory and accessory proteins (7 P) Viral structural proteins (1 C, 36 P) Virulence factors (26 P) Pages in category "Viral proteins"
VPg (viral protein genome-linked) is a protein that is covalently attached to the 5′ end of positive strand viral RNA and acts as a primer during RNA synthesis in a variety of virus families including Picornaviridae, Potyviridae, Astroviridae and Caliciviridae.
The classification of viral proteins as early proteins or late proteins depends on their relationship with genome replication. While many viruses (such as HIV ) [1] are described as expressing early and late proteins, this definition of these terms is commonly reserved for class I DNA viruses .
During assembly of the bacteriophage (phage) T4 virion, the structural proteins encoded by the phage genes interact with each other in a characteristic sequence. Maintaining an appropriate balance in the amounts of each of these structural proteins produced during viral infection appears to be critical for normal phage T4 morphogenesis. [4]
An example is the M1 protein of the influenza virus, showing affinity to the glycoproteins inserted in the host cell membrane on one side and affinity for the RNP complex molecules on the other side, which allows formation at the membrane of a complex made of the viral ribonucleoprotein at the inner side indirectly connected to the viral ...
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The nucleocapsid (N) protein is a protein that packages the positive-sense RNA genome of coronaviruses to form ribonucleoprotein structures enclosed within the viral capsid. [ 2 ] [ 3 ] The N protein is the most highly expressed of the four major coronavirus structural proteins . [ 2 ]
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