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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Antiviral Res. 2017 Mar 18;142:37–54. doi: 10.1016/j.antiviral.2017.03.007

Figure 2. Viral Envelope Protein Complexes.

Figure 2

A) X-ray crystal structures of trimeric Env are rendered in ribbon with each monomer of gp41/120 shown in orange, grey, or green. B) The HIV (4TVP), SARS (5I08), and Ebola (5JQB) Env proteins are rendered in the same fashion, but viewed orthogonally along the three-fold symmetry axis to highlight structural conservation between viruses. C) Glycoproteins were rendered with the glycans as red spheres (4TVP). D) CD4:gp120 were modelled on the Env trimer to demonstrate what the recognition complex would look like (5CAY and 4TVP).