X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=help%2Fhtml%2Fcalculations%2Fscorematrices.html;h=cb07a498ad4a1451542ddc06a1060d9238019587;hb=ab43013b7e357b84b4abade0dba949668dfb2a0e;hp=9a40e69c76982521f2ed42d4d43dd88b266d88de;hpb=a86681109f3b9be838ae3fb2dd9d6db544be4bce;p=jalview.git diff --git a/help/html/calculations/scorematrices.html b/help/html/calculations/scorematrices.html index 9a40e69..cb07a49 100644 --- a/help/html/calculations/scorematrices.html +++ b/help/html/calculations/scorematrices.html @@ -1,4 +1,24 @@ + Substitution matrices in Jalview @@ -7,9 +27,10 @@

Jalview includes a small number of built in substitution matrices, used for different types of analysis.

BLOSUM62
@@ -41,6 +62,8 @@ Z-11-314-3-20-31-3-10-1300-1-1-2-3-1-24

PAM250
+Percentage Accepted Mutation matrix. PAM250 estimates substitutions after 250% of sites have changed (each site can be mutated multple times).
+Jalview 2.8.1 introduced support for PAM250 based PCA and tree calculations.
@@ -69,7 +92,7 @@
 A  B  C  D  E  F  G  H  I  K  L  M  N  P  Q  R  S  T  U  V  W  X  Y  Z 
A20-200-31-1-1-1-2-1010-21100-60-30
Z02-533-502-20-3-210300-1-1-2-6-1-43
-

Simple Nucleotide Substitution
+

Simple Nucleotide Substitution
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. 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. @@ -91,5 +114,100 @@ In addition, it encodes weak equivalence between R and Y with AG and CTU, respec - introduce a nucleotide substitution matrix that supports RNA/DNA and ambiguity codes +

+ + - \ No newline at end of file +