BLAST: Basic Local Alignment Search Tool

NCBI · Maintained resource · Indexed 8 October 2026

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What this contributes

NCBI BLAST compares biological sequences with reference databases.

The boundary of the evidence

Similarity is not identity or clinical interpretation.

Why it belongs here

Repositories, reference genomes, analysis environments and metadata APIs make research reusable. This directory connects researchers to the original providers. Keep accession numbers, software versions, consent conditions and analysis provenance with every result.

Explore the field and its open questions

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