Virus coat protein

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Virus coat proteins (VCP) or capsid proteins coat the virus[1]. The various VCPs are designated as Vp1, Vp2, etc. The VCP P domain (protruding domain) in noroviruses binds histo blood group antigen receptors. The outer capsid protein VP4 is a virus spike-forming protein which mediates the virial attachment to the host epithelial cell receptors. VP4 is an outer capsid protein of non-enveloped viruses. VP4 attaches to sialic acid or to integrin heterodimers[2]. VP4 domains include: VP5* which forms the foot of the spike and acts in the permeabilization of the cell membrane and VP8* which forms the head of the spike and binds to sialic acid.

The biological assembly of HIV-I coat protein is (PDB entry 3gv2).

For details on Zika virus capsid protein see Hugo Heringer de Almeida/5YGH.

For adeno-associated virus 9 Vp1 see Adeno-Associated Virus.

See also Viral capsids

3D structures of virus coat proteins

Virus coat proteins 3D structures

Structure of HIV-I coat protein hexamer (PDB entry 3gv2)

Drag the structure with the mouse to rotate

ReferencesReferences

  1. Djabatey EA, Barclay PM. Difficult and failed intubation in 3430 obstetric general anaesthetics. Anaesthesia. 2009 Nov;64(11):1168-71. doi: 10.1111/j.1365-2044.2009.06060.x. PMID:19825049 doi:http://dx.doi.org/10.1111/j.1365-2044.2009.06060.x
  2. Mackow ER, Barnett JW, Chan H, Greenberg HB. The rhesus rotavirus outer capsid protein VP4 functions as a hemagglutinin and is antigenically conserved when expressed by a baculovirus recombinant. J Virol. 1989 Apr;63(4):1661-8. PMID:2538649

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Michal Harel, Alexander Berchansky, Joel L. Sussman