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) CCR5?
C) vpu
D) TRIM5?
E) CXCR4


E

Biology & Microbiology

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