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Sequence Similarity Search

Introduction

Sequence Similarity Search searches CapBase nucleotide databases directly in the browser using minimap2 compiled to WebAssembly through Aioli/Biowasm. Paste or upload nucleotide FASTA queries, choose a Capsella genome and database, then run the alignment locally.

Available Databases

  • Genome: searches the complete genome assembly, including intergenic regions.
  • Gene genomic regions: searches genomic gene sequences that may include introns.
  • Transcripts: searches annotated spliced transcript sequences.
  • Coding sequences: searches annotated CDS sequences.
  • Transposable elements: searches annotated TE copies.

Privacy

Searches run locally in your browser. Query sequences are not uploaded to CapBase.

Limitations

  • This tool is powered by minimap2 and is not NCBI BLAST.
  • The current version accepts nucleotide queries only.
  • Short sequences may behave differently from BLASTN-short.
  • Results depend on minimap2 heuristics, the selected preset, and the selected database.
  • Large searches may require substantial browser memory because minimap2 indexes are large.
  • Desktop browsers are recommended.

Citation

If you use this search tool, please cite minimap2:

Li H. Minimap2: pairwise alignment for nucleotide sequences. Bioinformatics. 2018;34:3094-3100. doi: 10.1093/bioinformatics/bty191.

The browser execution layer uses Aioli/Biowasm, which provides WebAssembly builds of bioinformatics command-line tools.