3 * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8)
4 * Copyright (C) 2012 J Procter, AM Waterhouse, LM Lui, J Engelhardt, G Barton, M Clamp, S Searle
6 * This file is part of Jalview.
8 * Jalview is free software: you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along with Jalview. If not, see <http://www.gnu.org/licenses/>.
20 <title>Substitution matrices in Jalview</title>
23 <strong>Substitution Matrices available in Jalview</strong>
24 <p>Jalview includes a small number of built in substitution matrices, used for different types of analysis.</p>
26 <li><a href="#blosum62">BLOSUM62</a> is the standard protein sequence alignment and analysis matrix.</li>
27 <li><a href="#pam250">PAM250</a> is another standard protein matrix, but not currently available for use from Jalview's user interface.</li>
28 <li><a href="#simplenucleotide">Simple Nucleotide Substition</a> is a (fairly) arbitrary DNA/RNA substitution matrix.
32 <p><strong><a name="blosum62"></a>BLOSUM62</strong><br/>
34 <tr><td></td><td> A </td><td> B </td><td> C </td><td> D </td><td> E </td><td> F </td><td> G </td><td> H </td><td> I </td><td> K </td><td> L </td><td> M </td><td> N </td><td> P </td><td> Q </td><td> R </td><td> S </td><td> T </td><td> U </td><td> V </td><td> W </td><td> X </td><td> Y </td><td> Z </td></tr>
35 <tr><td>A</td><td>4</td><td>-2</td><td>0</td><td>-2</td><td>-1</td><td>-2</td><td>0</td><td>-2</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>-1</td><td>1</td><td>0</td><td>0</td><td>0</td><td>-3</td><td>0</td><td>-2</td><td>-1</td></tr>
36 <tr><td>B</td><td>-2</td><td>4</td><td>-3</td><td>4</td><td>1</td><td>-3</td><td>-1</td><td>0</td><td>-3</td><td>0</td><td>-4</td><td>-3</td><td>3</td><td>-2</td><td>0</td><td>-1</td><td>0</td><td>-1</td><td>-1</td><td>-3</td><td>-4</td><td>-1</td><td>-3</td><td>1</td></tr>
37 <tr><td>C</td><td>0</td><td>-3</td><td>9</td><td>-3</td><td>-4</td><td>-2</td><td>-3</td><td>-3</td><td>-1</td><td>-3</td><td>-1</td><td>-1</td><td>-3</td><td>-3</td><td>-3</td><td>3</td><td>-1</td><td>-1</td><td>-2</td><td>-1</td><td>-2</td><td>-2</td><td>-2</td><td>-3</td></tr>
38 <tr><td>D</td><td>-2</td><td>4</td><td>-3</td><td>6</td><td>2</td><td>-3</td><td>-1</td><td>-1</td><td>-3</td><td>-1</td><td>-4</td><td>-3</td><td>1</td><td>-1</td><td>0</td><td>-2</td><td>0</td><td>-1</td><td>-1</td><td>-3</td><td>-4</td><td>-1</td><td>-3</td><td>1</td></tr>
39 <tr><td>E</td><td>-1</td><td>1</td><td>-4</td><td>2</td><td>5</td><td>-3</td><td>-2</td><td>0</td><td>-3</td><td>1</td><td>-3</td><td>-2</td><td>0</td><td>-1</td><td>2</td><td>0</td><td>0</td><td>-1</td><td>-1</td><td>-2</td><td>-3</td><td>-1</td><td>-2</td><td>4</td></tr>
40 <tr><td>F</td><td>-2</td><td>-3</td><td>-2</td><td>-3</td><td>-3</td><td>6</td><td>-3</td><td>-1</td><td>0</td><td>-3</td><td>0</td><td>0</td><td>-3</td><td>-4</td><td>-3</td><td>-3</td><td>-2</td><td>-2</td><td>-1</td><td>-1</td><td>1</td><td>-1</td><td>3</td><td>-3</td></tr>
41 <tr><td>G</td><td>0</td><td>-1</td><td>-3</td><td>-1</td><td>-2</td><td>-3</td><td>6</td><td>-2</td><td>-4</td><td>-2</td><td>-4</td><td>-3</td><td>0</td><td>-2</td><td>-2</td><td>-2</td><td>0</td><td>-2</td><td>-1</td><td>-3</td><td>-2</td><td>-1</td><td>-3</td><td>-2</td></tr>
42 <tr><td>H</td><td>-2</td><td>0</td><td>-3</td><td>-1</td><td>0</td><td>-1</td><td>-2</td><td>8</td><td>-3</td><td>-1</td><td>-3</td><td>-2</td><td>1</td><td>-2</td><td>0</td><td>0</td><td>-1</td><td>-2</td><td>-1</td><td>-3</td><td>-2</td><td>-1</td><td>2</td><td>0</td></tr>
43 <tr><td>I</td><td>-1</td><td>-3</td><td>-1</td><td>-3</td><td>-3</td><td>0</td><td>-4</td><td>-3</td><td>4</td><td>-3</td><td>2</td><td>1</td><td>-3</td><td>-3</td><td>-3</td><td>-3</td><td>-2</td><td>-1</td><td>-1</td><td>3</td><td>-3</td><td>-1</td><td>-1</td><td>-3</td></tr>
44 <tr><td>K</td><td>-1</td><td>0</td><td>-3</td><td>-1</td><td>1</td><td>-3</td><td>-2</td><td>-1</td><td>-3</td><td>5</td><td>-2</td><td>-1</td><td>0</td><td>-1</td><td>1</td><td>2</td><td>0</td><td>-1</td><td>-1</td><td>-2</td><td>-3</td><td>-1</td><td>-2</td><td>1</td></tr>
45 <tr><td>L</td><td>-1</td><td>-4</td><td>-1</td><td>-4</td><td>-3</td><td>0</td><td>-4</td><td>-3</td><td>2</td><td>-2</td><td>4</td><td>2</td><td>-3</td><td>-3</td><td>-2</td><td>-2</td><td>-2</td><td>-1</td><td>-1</td><td>1</td><td>-2</td><td>-1</td><td>-1</td><td>-3</td></tr>
46 <tr><td>M</td><td>-1</td><td>-3</td><td>-1</td><td>-3</td><td>-2</td><td>0</td><td>-3</td><td>-2</td><td>1</td><td>-1</td><td>2</td><td>5</td><td>-2</td><td>-2</td><td>0</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td></tr>
47 <tr><td>N</td><td>-2</td><td>3</td><td>-3</td><td>1</td><td>0</td><td>-3</td><td>0</td><td>1</td><td>-3</td><td>0</td><td>-3</td><td>-2</td><td>6</td><td>-2</td><td>0</td><td>0</td><td>1</td><td>0</td><td>-1</td><td>-3</td><td>-4</td><td>-1</td><td>-2</td><td>0</td></tr>
48 <tr><td>P</td><td>-1</td><td>-2</td><td>-3</td><td>-1</td><td>-1</td><td>-4</td><td>-2</td><td>-2</td><td>-3</td><td>-1</td><td>-3</td><td>-2</td><td>-2</td><td>7</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>-2</td><td>-2</td><td>-4</td><td>-2</td><td>-3</td><td>-1</td></tr>
49 <tr><td>Q</td><td>-1</td><td>0</td><td>-3</td><td>0</td><td>2</td><td>-3</td><td>-2</td><td>0</td><td>-3</td><td>1</td><td>-2</td><td>0</td><td>0</td><td>-1</td><td>5</td><td>1</td><td>0</td><td>-1</td><td>-1</td><td>-2</td><td>-2</td><td>-1</td><td>-1</td><td>3</td></tr>
50 <tr><td>R</td><td>-1</td><td>-1</td><td>-3</td><td>-2</td><td>0</td><td>-3</td><td>-2</td><td>0</td><td>-3</td><td>2</td><td>-2</td><td>-1</td><td>0</td><td>-2</td><td>1</td><td>5</td><td>-1</td><td>-1</td><td>-1</td><td>-3</td><td>-3</td><td>-1</td><td>-2</td><td>0</td></tr>
51 <tr><td>S</td><td>1</td><td>0</td><td>-1</td><td>0</td><td>0</td><td>-2</td><td>0</td><td>-1</td><td>-2</td><td>0</td><td>-2</td><td>-1</td><td>1</td><td>-1</td><td>0</td><td>-1</td><td>4</td><td>1</td><td>0</td><td>-2</td><td>-3</td><td>0</td><td>-2</td><td>0</td></tr>
52 <tr><td>T</td><td>0</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-2</td><td>-2</td><td>-2</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>0</td><td>-1</td><td>-1</td><td>-1</td><td>1</td><td>5</td><td>0</td><td>0</td><td>-2</td><td>0</td><td>-2</td><td>-1</td></tr>
53 <tr><td>U</td><td>0</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>0</td><td>0</td><td>-1</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>-1</td></tr>
54 <tr><td>V</td><td>0</td><td>-3</td><td>-1</td><td>-3</td><td>-2</td><td>-1</td><td>-3</td><td>-3</td><td>3</td><td>-2</td><td>1</td><td>1</td><td>-3</td><td>-2</td><td>-2</td><td>-3</td><td>-2</td><td>0</td><td>-1</td><td>4</td><td>-3</td><td>-1</td><td>-1</td><td>-2</td></tr>
55 <tr><td>W</td><td>-3</td><td>-4</td><td>-2</td><td>-4</td><td>-3</td><td>1</td><td>-2</td><td>-2</td><td>-3</td><td>-3</td><td>-2</td><td>-1</td><td>-4</td><td>-4</td><td>-2</td><td>-3</td><td>-3</td><td>-2</td><td>-2</td><td>-3</td><td>11</td><td>-2</td><td>2</td><td>-3</td></tr>
56 <tr><td>X</td><td>0</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>0</td><td>0</td><td>-1</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>-1</td></tr>
57 <tr><td>Y</td><td>-2</td><td>-3</td><td>-2</td><td>-3</td><td>-2</td><td>3</td><td>-3</td><td>2</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>-2</td><td>-3</td><td>-1</td><td>-2</td><td>-2</td><td>-2</td><td>-1</td><td>-1</td><td>2</td><td>-1</td><td>7</td><td>-2</td></tr>
58 <tr><td>Z</td><td>-1</td><td>1</td><td>-3</td><td>1</td><td>4</td><td>-3</td><td>-2</td><td>0</td><td>-3</td><td>1</td><td>-3</td><td>-1</td><td>0</td><td>-1</td><td>3</td><td>0</td><td>0</td><td>-1</td><td>-1</td><td>-2</td><td>-3</td><td>-1</td><td>-2</td><td>4</td></tr>
60 <p><strong><a name="pam250">PAM250</a></strong><br/>
62 <tr><td></td><td> A </td><td> B </td><td> C </td><td> D </td><td> E </td><td> F </td><td> G </td><td> H </td><td> I </td><td> K </td><td> L </td><td> M </td><td> N </td><td> P </td><td> Q </td><td> R </td><td> S </td><td> T </td><td> U </td><td> V </td><td> W </td><td> X </td><td> Y </td><td> Z </td></tr>
63 <tr><td>A</td><td>2</td><td>0</td><td>-2</td><td>0</td><td>0</td><td>-3</td><td>1</td><td>-1</td><td>-1</td><td>-1</td><td>-2</td><td>-1</td><td>0</td><td>1</td><td>0</td><td>-2</td><td>1</td><td>1</td><td>0</td><td>0</td><td>-6</td><td>0</td><td>-3</td><td>0</td></tr>
64 <tr><td>B</td><td>0</td><td>3</td><td>-4</td><td>3</td><td>3</td><td>-4</td><td>0</td><td>1</td><td>-2</td><td>1</td><td>-3</td><td>-2</td><td>2</td><td>-1</td><td>1</td><td>-1</td><td>0</td><td>0</td><td>-1</td><td>-2</td><td>-5</td><td>-1</td><td>-3</td><td>2</td></tr>
65 <tr><td>C</td><td>-2</td><td>-4</td><td>12</td><td>-5</td><td>-5</td><td>-4</td><td>-3</td><td>-3</td><td>-2</td><td>-5</td><td>-6</td><td>-5</td><td>-4</td><td>-3</td><td>-5</td><td>-4</td><td>0</td><td>-2</td><td>-3</td><td>-2</td><td>-8</td><td>-3</td><td>0</td><td>-5</td></tr>
66 <tr><td>D</td><td>0</td><td>3</td><td>-5</td><td>4</td><td>3</td><td>-6</td><td>1</td><td>1</td><td>-2</td><td>0</td><td>-4</td><td>-3</td><td>2</td><td>-1</td><td>2</td><td>-1</td><td>0</td><td>0</td><td>-1</td><td>-2</td><td>-7</td><td>-1</td><td>-4</td><td>3</td></tr>
67 <tr><td>E</td><td>0</td><td>3</td><td>-5</td><td>3</td><td>4</td><td>-5</td><td>0</td><td>1</td><td>-2</td><td>0</td><td>-3</td><td>-2</td><td>1</td><td>-1</td><td>2</td><td>-1</td><td>0</td><td>0</td><td>-1</td><td>-2</td><td>-7</td><td>-1</td><td>-4</td><td>3</td></tr>
68 <tr><td>F</td><td>-3</td><td>-4</td><td>-4</td><td>-6</td><td>-5</td><td>9</td><td>-5</td><td>-2</td><td>1</td><td>-5</td><td>2</td><td>0</td><td>-3</td><td>-5</td><td>-5</td><td>-4</td><td>-3</td><td>-3</td><td>-2</td><td>-1</td><td>0</td><td>-2</td><td>7</td><td>-5</td></tr>
69 <tr><td>G</td><td>1</td><td>0</td><td>-3</td><td>1</td><td>0</td><td>-5</td><td>5</td><td>-2</td><td>-3</td><td>-2</td><td>-4</td><td>-3</td><td>0</td><td>0</td><td>-1</td><td>-3</td><td>1</td><td>0</td><td>-1</td><td>-1</td><td>-7</td><td>-1</td><td>-5</td><td>0</td></tr>
70 <tr><td>H</td><td>-1</td><td>1</td><td>-3</td><td>1</td><td>1</td><td>-2</td><td>-2</td><td>6</td><td>-2</td><td>0</td><td>-2</td><td>-2</td><td>2</td><td>0</td><td>3</td><td>2</td><td>-1</td><td>-1</td><td>-1</td><td>-2</td><td>-3</td><td>-1</td><td>0</td><td>2</td></tr>
71 <tr><td>I</td><td>-1</td><td>-2</td><td>-2</td><td>-2</td><td>-2</td><td>1</td><td>-3</td><td>-2</td><td>5</td><td>-2</td><td>2</td><td>2</td><td>-2</td><td>-2</td><td>-2</td><td>-2</td><td>-1</td><td>0</td><td>-1</td><td>4</td><td>-5</td><td>-1</td><td>-1</td><td>-2</td></tr>
72 <tr><td>K</td><td>-1</td><td>1</td><td>-5</td><td>0</td><td>0</td><td>-5</td><td>-2</td><td>0</td><td>-2</td><td>5</td><td>-3</td><td>0</td><td>1</td><td>-1</td><td>1</td><td>3</td><td>0</td><td>0</td><td>-1</td><td>-2</td><td>-3</td><td>-1</td><td>-4</td><td>0</td></tr>
73 <tr><td>L</td><td>-2</td><td>-3</td><td>-6</td><td>-4</td><td>-3</td><td>2</td><td>-4</td><td>-2</td><td>2</td><td>-3</td><td>6</td><td>4</td><td>-3</td><td>-3</td><td>-2</td><td>-3</td><td>-3</td><td>-2</td><td>-1</td><td>2</td><td>-2</td><td>-1</td><td>-1</td><td>-3</td></tr>
74 <tr><td>M</td><td>-1</td><td>-2</td><td>-5</td><td>-3</td><td>-2</td><td>0</td><td>-3</td><td>-2</td><td>2</td><td>0</td><td>4</td><td>6</td><td>-2</td><td>-2</td><td>-1</td><td>0</td><td>-2</td><td>-1</td><td>-1</td><td>2</td><td>-4</td><td>-1</td><td>-2</td><td>-2</td></tr>
75 <tr><td>N</td><td>0</td><td>2</td><td>-4</td><td>2</td><td>1</td><td>-3</td><td>0</td><td>2</td><td>-2</td><td>1</td><td>-3</td><td>-2</td><td>2</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>0</td><td>-2</td><td>-4</td><td>0</td><td>-2</td><td>1</td></tr>
76 <tr><td>P</td><td>1</td><td>-1</td><td>-3</td><td>-1</td><td>-1</td><td>-5</td><td>0</td><td>0</td><td>-2</td><td>-1</td><td>-3</td><td>-2</td><td>0</td><td>6</td><td>0</td><td>0</td><td>1</td><td>0</td><td>-1</td><td>-1</td><td>-6</td><td>-1</td><td>-5</td><td>0</td></tr>
77 <tr><td>Q</td><td>0</td><td>1</td><td>-5</td><td>2</td><td>2</td><td>-5</td><td>-1</td><td>3</td><td>-2</td><td>1</td><td>-2</td><td>-1</td><td>1</td><td>0</td><td>4</td><td>1</td><td>-1</td><td>-1</td><td>-1</td><td>-2</td><td>-5</td><td>-1</td><td>-4</td><td>3</td></tr>
78 <tr><td>R</td><td>-2</td><td>-1</td><td>-4</td><td>-1</td><td>-1</td><td>-4</td><td>-3</td><td>2</td><td>-2</td><td>3</td><td>-3</td><td>0</td><td>0</td><td>0</td><td>1</td><td>6</td><td>0</td><td>-1</td><td>-1</td><td>-2</td><td>2</td><td>-1</td><td>-4</td><td>0</td></tr>
79 <tr><td>S</td><td>1</td><td>0</td><td>0</td><td>0</td><td>0</td><td>-3</td><td>1</td><td>-1</td><td>-1</td><td>0</td><td>-3</td><td>-2</td><td>1</td><td>1</td><td>-1</td><td>0</td><td>2</td><td>1</td><td>0</td><td>-1</td><td>-2</td><td>0</td><td>-3</td><td>0</td></tr>
80 <tr><td>T</td><td>1</td><td>0</td><td>-2</td><td>0</td><td>0</td><td>-3</td><td>0</td><td>-1</td><td>0</td><td>0</td><td>-2</td><td>-1</td><td>0</td><td>0</td><td>-1</td><td>-1</td><td>1</td><td>3</td><td>0</td><td>0</td><td>-5</td><td>0</td><td>-3</td><td>-1</td></tr>
81 <tr><td>U</td><td>0</td><td>-1</td><td>-3</td><td>-1</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>0</td><td>-1</td><td>-1</td><td>-1</td><td>0</td><td>0</td><td>-1</td><td>-1</td><td>-4</td><td>-1</td><td>-2</td><td>-1</td></tr>
82 <tr><td>V</td><td>0</td><td>-2</td><td>-2</td><td>-2</td><td>-2</td><td>-1</td><td>-1</td><td>-2</td><td>4</td><td>-2</td><td>2</td><td>2</td><td>-2</td><td>-1</td><td>-2</td><td>-2</td><td>-1</td><td>0</td><td>-1</td><td>4</td><td>-6</td><td>-1</td><td>-2</td><td>-2</td></tr>
83 <tr><td>W</td><td>-6</td><td>-5</td><td>-8</td><td>-7</td><td>-7</td><td>0</td><td>-7</td><td>-3</td><td>-5</td><td>-3</td><td>-2</td><td>-4</td><td>-4</td><td>-6</td><td>-5</td><td>2</td><td>-2</td><td>-5</td><td>-4</td><td>-6</td><td>17</td><td>-4</td><td>0</td><td>-6</td></tr>
84 <tr><td>X</td><td>0</td><td>-1</td><td>-3</td><td>-1</td><td>-1</td><td>-2</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>-1</td><td>0</td><td>-1</td><td>-1</td><td>-1</td><td>0</td><td>0</td><td>-1</td><td>-1</td><td>-4</td><td>-1</td><td>-2</td><td>-1</td></tr>
85 <tr><td>Y</td><td>-3</td><td>-3</td><td>0</td><td>-4</td><td>-4</td><td>7</td><td>-5</td><td>0</td><td>-1</td><td>-4</td><td>-1</td><td>-2</td><td>-2</td><td>-5</td><td>-4</td><td>-4</td><td>-3</td><td>-3</td><td>-2</td><td>-2</td><td>0</td><td>-2</td><td>10</td><td>-4</td></tr>
86 <tr><td>Z</td><td>0</td><td>2</td><td>-5</td><td>3</td><td>3</td><td>-5</td><td>0</td><td>2</td><td>-2</td><td>0</td><td>-3</td><td>-2</td><td>1</td><td>0</td><td>3</td><td>0</td><td>0</td><td>-1</td><td>-1</td><td>-2</td><td>-6</td><td>-1</td><td>-4</td><td>3</td></tr>
89 <p><strong><a name="simplenucleotide">Simple Nucleotide Substitution</a></strong></br>
90 This is an ad-hoc matrix which, in addition to penalising mutations between the common nucleotides (ACGT), includes T/U equivalence in order to allow both DNA and/or RNA.
91 In addition, it encodes weak equivalence between R and Y with AG and CTU, respectively, and N is allowed to match any other base weakly. This matrix also includes I (Inosine) and X (Xanthine), but encodes them to weakly match any of (ACGTU), and unfavourably match each other.
93 <tr><td></td><td> A </td><td> C </td><td> G </td><td> I </td><td> N </td><td> R </td><td> T </td><td> U </td><td> X </td><td> Y </td></tr>
94 <tr><td>A</td><td>10</td><td>-8</td><td>-8</td><td>1</td><td>1</td><td>1</td><td>-8</td><td>-8</td><td>1</td><td>-8</td></tr>
95 <tr><td>C</td><td>-8</td><td>10</td><td>-8</td><td>1</td><td>1</td><td>-8</td><td>-8</td><td>-8</td><td>1</td><td>1</td></tr>
96 <tr><td>G</td><td>-8</td><td>-8</td><td>10</td><td>1</td><td>1</td><td>1</td><td>-8</td><td>-8</td><td>1</td><td>-8</td></tr>
97 <tr><td>I</td><td>1</td><td>1</td><td>1</td><td>10</td><td>1</td><td>0</td><td>1</td><td>1</td><td>0</td><td>0</td></tr>
98 <tr><td>N</td><td>1</td><td>1</td><td>1</td><td>1</td><td>10</td><td>1</td><td>1</td><td>1</td><td>1</td><td>1</td></tr>
99 <tr><td>R</td><td>1</td><td>-8</td><td>1</td><td>0</td><td>1</td><td>10</td><td>-8</td><td>-8</td><td>0</td><td>-8</td></tr>
100 <tr><td>T</td><td>-8</td><td>-8</td><td>-8</td><td>1</td><td>1</td><td>-8</td><td>10</td><td>10</td><td>1</td><td>1</td></tr>
101 <tr><td>U</td><td>-8</td><td>-8</td><td>-8</td><td>1</td><td>1</td><td>-8</td><td>10</td><td>10</td><td>1</td><td>1</td></tr>
102 <tr><td>X</td><td>1</td><td>1</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>1</td><td>10</td><td>0</td></tr>
103 <tr><td>Y</td><td>-8</td><td>1</td><td>-8</td><td>0</td><td>1</td><td>-8</td><td>1</td><td>1</td><td>0</td><td>10</td></tr>
105 <strong><em>This nucleotide matrix was introduced in
106 Jalview 2.8. If you'd like to improve it - please take a look at <a
107 href="http://issues.jalview.org/browse/JAL-1027">Issue JAL-1027
108 - introduce a nucleotide substitution matrix that supports RNA/DNA
109 and ambiguity codes</a>