Download MendeleyBinding specificity of P[8] VP8* proteins of rotavirus vaccine strains with histo-blood group antigens.
Sun, X., Guo, N., Li, D., Jin, M., Zhou, Y., Xie, G., Pang, L., Zhang, Q., Cao, Y., Duan, Z.J.(2016) Virology 495: 129-135
- PubMed: 27209447
- DOI: https://doi.org/10.1016/j.virol.2016.05.010
- Primary Citation of Related Structures:
5JDB - PubMed Abstract:
RotaTeq(®) and Rotarix™ are two common human rotavirus (RV) vaccines currently on the market worldwide. Recent studies indicate histo-blood group antigens (HBGAs) may be attachment factors for RVs. The P[8] VP8* proteins of RotaTeq and Rotarix were expressed and purified, and their binding specificities were evaluated. Saliva-based binding assays showed that the VP8* proteins bound to the saliva samples of secretors irrespective of ABO blood types. However, in the oligosaccharide binding assay, the VP8* proteins displayed no specific binding to the HBGAs tested, including Lewis b and H1. The structure of RotaTeq P[8] VP8* was solved at 1.9Å. Structural comparisons revealed that the putative receptor binding site was different to that of other genotypes and displayed a novel potential binding region. These findings indicate RotaTeq and Rotarix may have better efficiency in areas with a high percentage of secretors.
Organizational Affiliation:
Key Laboratory of Medical Virology and Viral Diseases, Ministry of Health of the People's Republic of China, Beijing 102206, China; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China.
