BRAINCAKEReplication of HIV Virus
The virus attaches to the host cell by the attachment protein binding to a CD4 receptor of a T-helper cell.
The viral envelope fuses with the host cell plasma membrane and the capsid enters the host cell.
Once inside the cytoplasm of the T helper cell, the capsid is digested by host cell enzymes and the two RNA strands and the enzymes reverse transcriptase, integrase and protease are released into the cytoplasm.
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Key terms in this lesson
- capsid
- The protein coat that encloses the nucleic acid of a virus.
More in Cell Recognition and the Immune System
- Herd Immunity
- Vaccination Programme Failure
- Ethics
- MMR Vaccine Case Study
- Structure of HIV Virus
- AIDS
- The ELISA Test
- Antibiotics
All 30 lessons in Cell Recognition and the Immune System · All AQA AS-level Biology topics