This illustration: how SARS-CoV-2 spike (S) protein binds to human ACE2 receptor. (IMAGE)

Lehigh University

This illustration: how SARS-CoV-2 spike (S) protein binds to human ACE2 receptor.

Caption

The S protein has a highly flexible stalk that is composed of two independent joints. The flexible motions of the S proteins enable the receptor binding domain to have various orientation and the most probable S protein configurations are competent for ACE2 binding.

Credit

Dr. Yeolkyo Choi

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Must credit Dr. Yeolkyo Choi

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