Some parameters of the PSI-BLAST search were modified to yield  high-scoring
segment pairs of maximum possible length:

Option  Parameter Name                           Default Value         Our Value
------  --------------                           -------------         ---------
-G      gap costs                                11                    9
-f      threshold for extending hits             11                    9
-X      X dropoff value for gapped alignments    15                    20
-Z      X dropoff for final gapped alignments    25                    30
-y      X dropoff for BLAST extensions in bits   7                     15