Replication

Spread of Infection (2)

  • At this time an enzyme called protease, using enzymes and proteins from preliminary protein molecules, forms capsomere segments which unite to form an icosahedral capsid.
  • The capsid then changes into a bullet-shaped capsid and surrounds the viral RNA.
  • Next some of the host cell's membrane joins with the viral glycoproteins gp120 and gp41 to form the spikes.
  • Last, part of the host cell's surface membrane encloses the virus and becomes the envelope.

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