Diamond

Diamond performs rapid sequence alignments for protein-protein and DNA-protein (translated-DNA) searches against protein reference databases to support metagenomics and evolutionary analyses.

Key Features:

• Speed: Achieves up to 20,000× speedup compared to BLASTX when aligning short sequencing reads.
• Sensitivity: Maintains sensitivity levels comparable to BLASTX despite substantially increased throughput.
• Search types and input lengths: Supports protein-protein and DNA-protein searches across short reads, longer contigs, and assemblies.
• Reference database compatibility: Maps sequences against protein reference databases to handle large-scale datasets typical in metagenomics and evolutionary studies.

Scientific Applications:

• Metagenomics: Enables high-throughput taxonomic and functional profiling by aligning short reads and assembled contigs to protein databases.
• Evolutionary biology: Facilitates comparative and evolutionary analyses through protein-level alignments across diverse sequence datasets.

Methodology:

Employs a double indexing algorithm to efficiently map sequencing reads against protein reference databases.