7KQD image
Entry Detail
PDB ID:
7KQD
Keywords:
Title:
Prefusion RSV F Bound to RV521
Biological Source:
Host Organism:
PDB Version:
Deposition Date:
2020-11-14
Release Date:
2021-04-21
Method Details:
Experimental Method:
Resolution:
2.94 Å
R-Value Free:
0.24
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 41 3 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Fusion glycoprotein F0
Chain IDs:A (auth: F)
Chain Length:568
Number of Molecules:1
Biological Source:Respiratory syncytial virus
Primary Citation

Abstact

RV521 is an orally bioavailable inhibitor of respiratory syncytial virus (RSV) fusion that was identified after a lead optimization process based upon hits that originated from a physical property directed hit profiling exercise at Reviral. This exercise encompassed collaborations with a number of contract organizations with collaborative medicinal chemistry and virology during the optimization phase in addition to those utilized as the compound proceeded through preclinical and clinical evaluation. RV521 exhibited a mean IC50 of 1.2 nM against a panel of RSV A and B laboratory strains and clinical isolates with antiviral efficacy in the Balb/C mouse model of RSV infection. Oral bioavailability in preclinical species ranged from 42 to >100% with evidence of highly efficient penetration into lung tissue. In healthy adult human volunteers experimentally infected with RSV, a potent antiviral effect was observed with a significant reduction in viral load and symptoms compared to placebo.

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Primary Citation of related structures