cd4 receptor
"Hovanessian says that CD4 receptor is like an anchor on the cell, to which HIV attaches, while CD26 is the door through which it enters. CD26 reacts with a part of the virus's protein coat called the V3 loop. Hovanessian says that this sequence is like the key which opens the CD26 door."
"HIV attaches to a site on our T-cells called the CD4 receptor. T-cells are the soldiers of the immune system that enable us to fight infections. The CD4 receptor is like a window through which HIV enters into body cells. But for efficient entry, HIV attaches to another spot on our T-cells called the CCR5 co-receptor. The CCR5 molecule acts as the most efficient door through which HIV enters into our T-cells. "
The HIV virus sticks to it and goes inside.
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