NCBI is excited to introduce Pebblescout, a pilot web search service that quickly finds matches in very large next-gen nucleotide databases. Check out our preprint for more details: https://ow.ly/fkLo50PU0oT

Pebblescout pre-indexes nucleotide resources and searches them. The index contains at least one 25-mer from every 42-mer for all subjects in the database. Search has three modes: profile, summary, and detailed. Summary search ranks matching subjects using Pebblescout score. Search generates hashes from given user queries using the same scheme as used for indexing. This guarantees that every 42 bp match between the user query and any subject in the database is found.

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