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. 2008 Sep 16;36(18):5863–5871. doi: 10.1093/nar/gkn579

Table 2.

Over-alignment parameters for some common scoring schemes

Matrix GOP GEP λ c E(length) P(length = 0) Comments
BLOSUM45 15 2 0.203 0.674 6.72 0.490
BLOSUM50 10 2 0.141 0.714 22.89 0.369 FASTA 3.5 default
BLOSUM62 7 2 0.239 0.700 7.80 0.483 WU BLAST 2.0 default
BLOSUM62 11 1 0.267 0.669 5.53 0.532 NCBI BLAST 2.2.17 default
BLOSUM62 11 2 0.299 0.645 2.96 0.589
BLOSUM62 10 4 0.309 0.633 2.37 0.605 Matcher default
BLOSUM62 9.5 0.5 Water, Supermatcher default
BLOSUM80 10 1 0.300 0.609 2.81 0.611
HoxD55 400 30 0.00592 0.802 23.50 0.330 UCSC genome alignments
HoxD70 400 30 0.00908 0.694 4.53 0.486 BLASTZ v7 default
+1/−1 2 1 0.916 0.997 2.30 0.602
+1/−3 5 2 1.332 1.000 0.36 0.736 NCBI BLAST 2.2.17 default
+2/−3 5 2 0.593 0.790 0.87 0.666 NCBI BLAST website default
+5/−4 12 4 0.133 0.789 10.80 0.351 FASTA 3.5, Matcher default
+5/−4 0 10 0.0765 0.9294 40.51 0.226 WU BLAST 2.0 default
+5/−4 9.5 0.5 Water, Supermatcher default

Protein parameters are for Robinson-Robinson frequencies. DNA parameters are for 60% AT.

*Dashes represent that simulations were unable to determine whether the scoring scheme was in the local regime.