Multiple choice

The Human Immunodeficiency Virus [HIV] interacts with which of the following cell-surface molecules to gain entry into cells of the immune system of the human beings?

  1. CD4

  2. CD19

  3. CD40 ligand

  4. CD8

  5. CD25

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is a major portal of entry, though not the only one. The chemokine receptors CXCR4 and CCR5 are also major portals of entry and reduce the CD4 positive helper T cell numbers dramatically.