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Search via sequence

Suggestion: To obtain the full set of antigenic information, please try this tool only when GISAID or SAS ID or mutations search fails to retrieve any entries.

Enter or paste a
above 1200 AA in .fasta format.
Use an example
Or upload a .fasta file:
Searching may take longer than expected. You are suggested to leave an email box to receive the calculated results.
Note
  • 1. This Page allows searching SAS via S protein sequence with length above 1200AA from N terminal in .fasta format.
  • 2. For a complete S sequence, SAS will check whether it has been collected in SAS first. If not, SAS treats it as a new sequence, and only calculates the antigenicity similarity scores against the benchmarking S antigen of SARS-CoV-2 in all pre-defined epitope regions.
  • 3. Considering the computational time, users need to leave an email address to receive the result once job is done.