 Here, we describe molecular dynamics simulations and experiments to investigate how heparin binds to the spike and the mechanism by which it exerts its antiviral activity.
<clarity>  Here, we describe molecular dynamics simulations and experiments to investigate how heparin binds to the spike and the mechanism by which it exerts its antiviral activity.
 Here, we describe molecular dynamics simulations and biochemical assays, we investigate the binding mode of heparin to the mechanism by which it exerts its antiviral activity.