Objective: To examine the immunological reactions between the peptides of SARS coronavirus (SARS-Cov) S-protein and the serum of SARS patients for identifying the SARS-Cov epitope.
Methods: The peptides from S1 domain of SARS-Cov S-protein were synthesized by peptide synthesizer, and the immunological reaction of the peptides with the serum of SARS patients were examined by means of ELISA.
Results: The optical density value of the immunological reaction of synthesized 8 peptides with SARS patient serum was 1.5-2.6 times higher than that with normal serum.
Conclusion: The 8 peptides from S1 domain of S protein appear to have low immunogenicity to the serum of SARS patients, indicating that these peptides may not be the epitope of the SARS-Cov.