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Scientists identify virus-cell interaction that may explain COVID-19's high infection rate.

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Lehigh researchers quantify the specific interaction between the spike protein of SARS-CoV-2 — the virus that causes COVID-19 — with the ACE2 receptors in human cells that may partially explain its high infection rate compared to SARS-CoV-1.

Bioengineering researchers at Lehigh University have identified a previously unknown interaction between receptors in human cells and the spike, or “S,” protein of SARS-CoV-2, the virus that causes COVID-19. This new information could aid in the development of new strategies to block SARS-CoV-2 entry into human cells.

X. Frank Zhang and Wonpil Im knew from recent studies that the interaction between the SARS-CoV-2 spike protein and angiotensin-converting enzyme 2 (ACE2) receptors in human cells is stronger than the interaction between the structurally identical spike protein of SARS-CoV-1, the virus that caused the 2002-2004 SARS outbreak, and the same receptors.

“Our goal was to characterize SARS-CoV-2 and study the protein-protein interactions during its invasion of human cells to provide more insights into the mechanisms that make this first step in its successful invasion process possible,” says Zhang, an associate professor in Bioengineering and Mechanical Engineering & Mechanics at Lehigh.

bioengineer.org/scientists-...

Biophysical Journal. Study Paper:

cell.com/biophysj/fulltext/...

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