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   doi:10.1186/gb-2001-2-10-reviews2002