Abstract
ABSTRACT Respiratory syncytial virus (RSV) is the leading cause of lower respiratory tract disease in infants and young children worldwide. Infection is mediated, in part, by an initial interaction between attachment protein (G) and a highly sulfated heparin-like glycosaminoglycan (Gag) located on the cell surface. Synthetic overlapping peptides derived from consensus sequences of the G protein ectodomain from both RSV subgroups A and B were tested by heparin-agarose affinity chromatography for their abilities to bind heparin. This evaluation identified a single linear heparin binding domain (HBD) for RSV subgroup A ( 184 A→T 198 ) and B ( 183 K→K 197 ). The binding of these peptides to Vero cells was inhibited by heparin. Peptide binding to two CHO cell mutants (pgsD-677 and pgsA-745) deficient in heparan sulfate or total Gag synthesis was decreased 50% versus the parental cell line, CHO-K1, and decreased an average of 87% in the presence of heparin. The RSV-G HBD peptides were also able to inhibit homologous and heterologous virus infectivity of Vero cells. These results indicate that the sequence 184 A/ 183 K→ 198 T/K 197 for RSV subgroups A and B, respectively, defines an important determinant of RSV-G interactions with heparin.
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Dates
Type | When |
---|---|
Created | 5 years, 7 months ago (Dec. 31, 2019, 1:37 p.m.) |
Deposited | 3 years, 5 months ago (March 4, 2022, 11:36 p.m.) |
Indexed | 2 weeks, 5 days ago (Aug. 5, 2025, 8:54 a.m.) |
Issued | 26 years ago (Aug. 1, 1999) |
Published | 26 years ago (Aug. 1, 1999) |
Published Print | 26 years ago (Aug. 1, 1999) |
@article{Feldman_1999, title={Identification of a Linear Heparin Binding Domain for Human Respiratory Syncytial Virus Attachment Glycoprotein G}, volume={73}, ISSN={1098-5514}, url={http://dx.doi.org/10.1128/jvi.73.8.6610-6617.1999}, DOI={10.1128/jvi.73.8.6610-6617.1999}, number={8}, journal={Journal of Virology}, publisher={American Society for Microbiology}, author={Feldman, Steven A. and Hendry, R. Michael and Beeler, Judy A.}, year={1999}, month=aug, pages={6610–6617} }