Early in the infection with HIV,most virions bind to the host cell using CCR5 as a coreceptor.As the infection progresses,the HIV population evolves to use an alternate coreceptor.What is the alternate coreceptor these X4 viruses utilize?
A) Tetherin
B) CCR5α
C) vpu
D) TRIM5α
E) CXCR4

Question

Quizplus · Accepted Answer

As mentioned in the question, early in the infection with HIV, most virions bind to the host cell using CCR5 as a coreceptor. However, as the infection progresses, the HIV population evolves to use an alternate coreceptor. This alternate coreceptor is CXCR4, which is also known as the X4 virus. Therefore, the answer is E.

Early in the Infection with HIV,most Virions Bind to the Host