Figure 5From: Highly conserved serine residue 40 in HIV-1 p6 regulates capsid processing and virus core assemblySpecific infectivity of HIV-1 NL4-3 wt and p6-mutants. TZM-bl cells were infected with purified virus preparations standardized for p24. Infectious titers were determined by measuring β-galactosidase activity as described in Materials and Methods (RLU: relative light units).Back to article page