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Putative hAPN receptor binding sites in SARS_CoV spike protein
Xiao-Jing Yu1, Cheng Luo, Jian-Cheng Lin
1Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
Acta Pharmacologica Sinica
|June 7, 2003
Summary
This study identifies CD13 as a potential receptor for the SARS-CoV S protein, suggesting a role in SARS infection. Findings offer insights for developing SARS drugs and vaccines.
Area of Science:
- Virology
- Molecular Biology
- Bioinformatics
Background:
- The severe acute respiratory syndrome coronavirus (SARS-CoV) poses a significant public health threat.
- Understanding the molecular interactions of SARS-CoV proteins is crucial for developing effective countermeasures.
Purpose of the Study:
- To investigate the ligand-receptor binding between the SARS-CoV S protein and CD13.
- To identify specific domains and motifs involved in this interaction.
- To provide a basis for designing anti-SARS drugs and vaccines.
Main Methods:
- Comparative genomics, homology searches, phylogenetic analyses, and multi-sequence alignment were used for prediction.
- Molecular modeling and docking simulations were employed to validate predicted interactions.
Main Results:
- Bioinformatics tools mapped potential binding sites on the SARS-CoV S protein for CD13.
- Molecular docking confirmed a specific interaction between the D757-R761 motif of the S protein and the P585-A653 domain of CD13.
Conclusions:
- CD13 is identified as a potential receptor for the SARS-CoV S protein, possibly contributing to SARS infection.
- The study presents a novel strategy for identifying potential protein receptors within a genome.