Programs Available for BLAST Search

The NCBI BLAST family of programs includes:

BLASTP

Compares an amino acid query sequence against a protein sequence database.

BLASTN

Compares a nucleotide query sequence against a nucleotide sequence database.

BLASTX

Compares a nucleotide query sequence translated in all reading frames against a protein sequence database.

TBLASTN

Compares a protein query sequence against a nucleotide sequence database dynamically translated in all reading frames.

TBLASTX

Compares the six-frame translations of a nucleotide query sequence against the six-frame translations of a nucleotide sequence database.