Table 1

BLAST programs

Program

Query sequence type

Target sequence type


BLASTP

Protein

Protein

Compares an amino acid query sequence against a protein sequence database

BLASTN

Nucleotide

Nucleotide

Compares a nucleotide query sequence against a nucleotide sequence database

BLASTX

Nucleotide (translated)

Protein

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

TBLASTN

Protein

Nucleotide (translated)

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

TBLASTX

Nucleotide (translated)

Nucleotide (translated)

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


Pertsemlidis and Fondon Genome Biology 2001 2:reviews2002.1-reviews2002.10   doi:10.1186/gb-2001-2-10-reviews2002