P24 capsid protein

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The HIV capsid consists of roughly 200 copies of the p24 protein. The p24 structure is shown in two representations: cartoon (top) and isosurface (bottom)

p24 is a component of the HIV particle capsid. There are approximately 2000 molecules per virus particle, or at a molecule weight of 24 kDa, about 104 virus particles per picogram of p24. The onset of symptoms of AIDS correlates with a reduction in the number of CD4 T cells to less than 450 μL and increased levels of virus and protein p24 in the blood.[1]


  1. ^ Medical Microbiology, p637