COVID-19 Convalescents Exhibit Humoral Immunity to SARS-COV-2 Envelope (E) Protein

Abstract

In this work, we obtain a producer of the recombinant SARS-CoV-2 E protein and develop a system for its expression and purification in a soluble form. ELISA confirmed its antigenic properties. In COVID-19 convalescents, the level of IgG against the E protein was significantly increased in comparison with the control group of patients.