NCBI BLAST / sequence search

BLAST Sequence Alignment

Search NCBI databases for similar sequences and inspect hit quality and alignments.

SEARCH ENGINENCBI BLAST

Hits, E-values, identity, and pairwise alignments

BLAST OUTPUTCandidate hits
Awaiting sequence

Submit a sequence to see hit records, E-values, identity, and pairwise alignments.

blastn / blastp / blastx / tblastn
Identity visualization
Alignment detail expansion