PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34929169-4 2022 Biochemical experiments corroborated the simulation results, showing that heparin inhibits the furin-mediated cleavage of spike by binding to the S1/S2 site. Heparin 74-81 surface glycoprotein Severe acute respiratory syndrome coronavirus 2 122-127 34929169-6 2022 In simulations of the closed spike homotrimer, heparin binds the RBD and the N-terminal domain of two adjacent spike subunits and hinders opening. Heparin 47-54 surface glycoprotein Severe acute respiratory syndrome coronavirus 2 29-34 34929169-6 2022 In simulations of the closed spike homotrimer, heparin binds the RBD and the N-terminal domain of two adjacent spike subunits and hinders opening. Heparin 47-54 surface glycoprotein Severe acute respiratory syndrome coronavirus 2 111-116 34929169-7 2022 In simulations of open spike conformations, heparin induces stabilization of the hinge region and a change in RBD motion. Heparin 44-51 surface glycoprotein Severe acute respiratory syndrome coronavirus 2 23-28 34929169-8 2022 Taken together, our results indicate that heparin can inhibit SARS-CoV-2 infection by three mechanisms: by allosterically hindering binding to the host cell receptor, by directly competing with binding to host heparan sulfate proteoglycan co-receptors, and by preventing spike cleavage by furin. Heparin 42-49 surface glycoprotein Severe acute respiratory syndrome coronavirus 2 271-276