Default BLAST parameters

Default BLAST parameters for a protein sequence of length longer than 30 amino acids:
E value: 10
Word size: 3
Matrix: BLOSUM62
Gap open cost: 11
Gap extention cost: 1

Default BLAST parameters for a short protein sequence of length equal to or less than 30 amino acids:
E value: 100
Word size: 2
Matrix: PAM30
Gap open cost: 11
Gap extention cost: 1