The Statistics of PSI-BLAST Scores

 

Table 3

Statistical parameters for two substitution matrices in conjunction with various gap costs. The relative entropy H is expressed in nats.
 
Gap costs PAM-30   BLOSUM-80
  K H K H

(,) 0.340 0.28 1.75 0.343 0.17 0.66
 
(7,2) 0.306 0.15 1.07 0.295 0.077 0.38
(6,2) 0.292 0.13 0.86 0.271 0.051 0.28
 
(10,1) 0.309 0.15 1.07 0.300 0.072 0.39
(9,1) 0.295 0.12 0.85 0.277 0.046 0.30