1 # PAM 250 matrix recommended by Gonnet, Cohen & Benner
2 # Science June 5, 1992.
3 # Values rounded to nearest integer
4 C S T P A G N D E Q H R K M I L V F Y W X *
5 C 12 0 0 -3 0 -2 -2 -3 -3 -2 -1 -2 -3 -1 -1 -2 0 -1 0 -1 -3 -8
6 S 0 2 2 0 1 0 1 0 0 0 0 0 0 -1 -2 -2 -1 -3 -2 -3 0 -8
7 T 0 2 2 0 1 -1 0 0 0 0 0 0 0 -1 -1 -1 0 -2 -2 -4 0 -8
8 P -3 0 0 8 0 -2 -1 -1 0 0 -1 -1 -1 -2 -3 -2 -2 -4 -3 -5 -1 -8
9 A 0 1 1 0 2 0 0 0 0 0 -1 -1 0 -1 -1 -1 0 -2 -2 -4 0 -8
10 G -2 0 -1 -2 0 7 0 0 -1 -1 -1 -1 -1 -4 -4 -4 -3 -5 -4 -4 -1 -8
11 N -2 1 0 -1 0 0 4 2 1 1 1 0 1 -2 -3 -3 -2 -3 -1 -4 0 -8
12 D -3 0 0 -1 0 0 2 5 3 1 0 0 0 -3 -4 -4 -3 -4 -3 -5 -1 -8
13 E -3 0 0 0 0 -1 1 3 4 2 0 0 1 -2 -3 -3 -2 -4 -3 -4 -1 -8
14 Q -2 0 0 0 0 -1 1 1 2 3 1 2 2 -1 -2 -2 -2 -3 -2 -3 -1 -8
15 H -1 0 0 -1 -1 -1 1 0 0 1 6 1 1 -1 -2 -2 -2 0 2 -1 -1 -8
16 R -2 0 0 -1 -1 -1 0 0 0 2 1 5 3 -2 -2 -2 -2 -3 -2 -2 -1 -8
17 K -3 0 0 -1 0 -1 1 0 1 2 1 3 3 -1 -2 -2 -2 -3 -2 -4 -1 -8
18 M -1 -1 -1 -2 -1 -4 -2 -3 -2 -1 -1 -2 -1 4 2 3 2 2 0 -1 -1 -8
19 I -1 -2 -1 -3 -1 -4 -3 -4 -3 -2 -2 -2 -2 2 4 3 3 1 -1 -2 -1 -8
20 L -2 -2 -1 -2 -1 -4 -3 -4 -3 -2 -2 -2 -2 3 3 4 2 2 0 -1 -1 -8
21 V 0 -1 0 -2 0 -3 -2 -3 -2 -2 -2 -2 -2 2 3 2 3 0 -1 -3 -1 -8
22 F -1 -3 -2 -4 -2 -5 -3 -4 -4 -3 0 -3 -3 2 1 2 0 7 5 4 -2 -8
23 Y 0 -2 -2 -3 -2 -4 -1 -3 -3 -2 2 -2 -2 0 -1 0 -1 5 8 4 -2 -8
24 W -1 -3 -4 -5 -4 -4 -4 -5 -4 -3 -1 -2 -4 -1 -2 -1 -3 4 4 14 -4 -8
25 X -3 0 0 -1 0 -1 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -2 -2 -4 -1 -8
26 * -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 -8 1