Figure 1.

SARS-CoV-2-S1 and SARS-CoV-2-CTD Co-localize with hACE2

HEK293T cells were transfected with pEGFP-N1-hACE2 (left panels, hACE2-GFP) or pEGFP-C1-hCD26 (right panels, hCD26-GFP). Twenty-four hours later, the cells were incubated with supernatant containing mFc-tagged SARS-CoV-2-S1 (SARS-CoV-2-S1-mFc), SARS-CoV-2-NTD (SARS-CoV-2-NTD-mFc), SARS-CoV-2-CTD (SARS-CoV-2-CTD-mFc), MERS-RBD (MERS-RBD-mFc), or SARS-RBD (SARS-RBD-mFc) proteins and subsequently incubated with anti-mouse IgG (mIgG) antibody conjugated with A594 (anti-mIgG/A594). Nuclei were stained with DAPI. All images were obtained by confocal microscopy using a Leica SP8 (×100 oil immersion objective lens). The scale bar in each panel indicates 8 μm. The data shown are representative of two independent experiments.

See also Figure S2.