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. 2021 Jul 8;11:14176. doi: 10.1038/s41598-021-93584-z

Figure 3.

Figure 3

The interaction between HBx and Pin1. Cell lysate of BL21 transfected with Flag-tagged HBx expression plasmids was incubated with Ni2 + -NTA beads adding or not adding purified His6-tagged Pin1. HBx was detected in both the whole cell lysate isolated from Ni2+-NTA beads and imidazole eluent (A). Co-immunoprecipitation assay showed that with the transfection of Flag-tagged HBx, endogenous Pin1 protein pulled down by HBx was detected in eluent after incubated with anti-Flag beads, while HBx was detected in eluent after incubated with anti-Pin1 beads (B). Immunofluorescence microscopy shows the common position of Pin1 and HBx in both cytoplasm and nucleus (C).