github.com/biogo/biogo@v1.0.4/align/matrix/matrices/PAM100 (about)

     1  #
     2  # This matrix was produced by "pam" Version 1.0.6 [28-Jul-93]
     3  #
     4  # PAM 100 substitution matrix, scale = ln(2)/2 = 0.346574
     5  #
     6  # Expected score = -1.99, Entropy = 1.18 bits
     7  #
     8  # Lowest score = -9, Highest score = 12
     9  #
    10     A  R  N  D  C  Q  E  G  H  I  L  K  M  F  P  S  T  W  Y  V  B  Z  X  *
    11  A  4 -3 -1 -1 -3 -2  0  1 -3 -2 -3 -3 -2 -5  1  1  1 -7 -4  0 -1 -1 -1 -9
    12  R -3  7 -2 -4 -5  1 -3 -5  1 -3 -5  2 -1 -6 -1 -1 -3  1 -6 -4 -3 -1 -2 -9
    13  N -1 -2  5  3 -5 -1  1 -1  2 -3 -4  1 -4 -5 -2  1  0 -5 -2 -3  4  0 -1 -9
    14  D -1 -4  3  5 -7  0  4 -1 -1 -4 -6 -1 -5 -8 -3 -1 -2 -9 -6 -4  4  3 -2 -9
    15  C -3 -5 -5 -7  9 -8 -8 -5 -4 -3 -8 -8 -7 -7 -4 -1 -4 -9 -1 -3 -6 -8 -5 -9
    16  Q -2  1 -1  0 -8  6  2 -3  3 -4 -2  0 -2 -7 -1 -2 -2 -7 -6 -3  0  5 -2 -9
    17  E  0 -3  1  4 -8  2  5 -1 -1 -3 -5 -1 -4 -8 -2 -1 -2 -9 -5 -3  3  4 -2 -9
    18  G  1 -5 -1 -1 -5 -3 -1  5 -4 -5 -6 -3 -4 -6 -2  0 -2 -9 -7 -3 -1 -2 -2 -9
    19  H -3  1  2 -1 -4  3 -1 -4  7 -4 -3 -2 -4 -3 -1 -2 -3 -4 -1 -3  1  1 -2 -9
    20  I -2 -3 -3 -4 -3 -4 -3 -5 -4  6  1 -3  1  0 -4 -3  0 -7 -3  3 -3 -3 -2 -9
    21  L -3 -5 -4 -6 -8 -2 -5 -6 -3  1  6 -4  3  0 -4 -4 -3 -3 -3  0 -5 -4 -3 -9
    22  K -3  2  1 -1 -8  0 -1 -3 -2 -3 -4  5  0 -7 -3 -1 -1 -6 -6 -4  0 -1 -2 -9
    23  M -2 -1 -4 -5 -7 -2 -4 -4 -4  1  3  0  9 -1 -4 -3 -1 -6 -5  1 -4 -2 -2 -9
    24  F -5 -6 -5 -8 -7 -7 -8 -6 -3  0  0 -7 -1  8 -6 -4 -5 -1  4 -3 -6 -7 -4 -9
    25  P  1 -1 -2 -3 -4 -1 -2 -2 -1 -4 -4 -3 -4 -6  7  0 -1 -7 -7 -3 -3 -1 -2 -9
    26  S  1 -1  1 -1 -1 -2 -1  0 -2 -3 -4 -1 -3 -4  0  4  2 -3 -4 -2  0 -2 -1 -9
    27  T  1 -3  0 -2 -4 -2 -2 -2 -3  0 -3 -1 -1 -5 -1  2  5 -7 -4  0 -1 -2 -1 -9
    28  W -7  1 -5 -9 -9 -7 -9 -9 -4 -7 -3 -6 -6 -1 -7 -3 -7 12 -2 -9 -6 -8 -6 -9
    29  Y -4 -6 -2 -6 -1 -6 -5 -7 -1 -3 -3 -6 -5  4 -7 -4 -4 -2  9 -4 -4 -6 -4 -9
    30  V  0 -4 -3 -4 -3 -3 -3 -3 -3  3  0 -4  1 -3 -3 -2  0 -9 -4  5 -4 -3 -2 -9
    31  B -1 -3  4  4 -6  0  3 -1  1 -3 -5  0 -4 -6 -3  0 -1 -6 -4 -4  4  2 -2 -9
    32  Z -1 -1  0  3 -8  5  4 -2  1 -3 -4 -1 -2 -7 -1 -2 -2 -8 -6 -3  2  5 -2 -9
    33  X -1 -2 -1 -2 -5 -2 -2 -2 -2 -2 -3 -2 -2 -4 -2 -1 -1 -6 -4 -2 -2 -2 -2 -9
    34  * -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9 -9  1