nucleotide blast Search a nucleotide database using a nucleotide query
Algorithms: blastn, megablast, discontiguous megablast
protein blast Search protein database using a protein query
Algorithms: blastp, psi-blast, phi-blast
blastx Search protein database using a translated nucleotide query
tblastn Search translated nucleotide database using a protein query
tblastx Search translated nucleotide database using a translated nucleotide query