diff --git a/Scripts/utility/graphics/t47_graphics/tool/generate_mutpos_from_rdat.m b/Scripts/utility/graphics/t47_graphics/tool/generate_mutpos_from_rdat.m
index 21cb36b..007c149 100644
--- a/Scripts/utility/graphics/t47_graphics/tool/generate_mutpos_from_rdat.m
+++ b/Scripts/utility/graphics/t47_graphics/tool/generate_mutpos_from_rdat.m
@@ -12,9 +12,10 @@
 
 mutpos = ones(1, size(cell_array, 2)) * NaN; 
 for i = 2:size(mutpos, 2)
-  mutpos_inferred = str2num(strrep(strrep(strrep(strrep(strrep(cell_array{i}{1}, 'mutation:', ''), 'G', ''), 'A', ''), 'C', ''), 'U', ''));
+  %mutpos_inferred = str2num(strrep(strrep(strrep(strrep(strrep(strrep(cell_array{i}{1}, 'mutation:', ''), 'G', ''), 'A', ''), 'C', ''), 'U', ''),'X',''));
+  mutpos_inferred = str2num(regexprep(cell_array{i}{1},'\D',''));
   if ~isempty( mutpos_inferred )
     mutpos(i) = mutpos_inferred;
   end
 end;
-fprintf(['mutpos (1 x ', num2str(length(mutpos)), ') is generated from d_rdat.data_annotations.\n']);
\ No newline at end of file
+fprintf(['mutpos (1 x ', num2str(length(mutpos)), ') is generated from d_rdat.data_annotations.\n']);