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Figure 7 | Retrovirology

Figure 7

From: TNPO3 protects HIV-1 replication from CPSF6-mediated capsid stabilization in the host cell cytoplasm

Figure 7

TNPO3 depletion does not inhibit HIV-1 if CPSF6 is independently targeted to the nucleus. (A) CPSF6 and TNPO3 protein in TZM-bl cells stably transduced with CPSF6 KD vectors, control or TNPO3 KD vectors, and rescue of CPSF6 (ntCPSF6) with or without the SV40 T-Ag NLS. Cell lysate was probed in western blots with anti-TNPO3 antibody (upper panel), anti-CPSF6 antibody (middle panel) and anti-β-actin antibody (lower panel). (B) Localization of the non-targetable CPSF6 (ntCPSF6) constructs (green) in control (Ctrl) KD or TNPO3 KD TZM-bl cells stably depleted of CPSF6. DAPI staining (blue) was used to mark the nuclear compartment. (C) The pools of stable cell lines in (B) were challenged with WT or CA mutant HIV-1NL4-3GFP reporter viruses. After 72 hrs, GFP expression was checked by flow cytometry. Data represent one of at least three independent experiments. Error bars represent ± SEM (n = 3).

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