diff --git a/src/scenicplus/plotting/dotplot.py b/src/scenicplus/plotting/dotplot.py
index de01e30..f5f8ae4 100644
--- a/src/scenicplus/plotting/dotplot.py
+++ b/src/scenicplus/plotting/dotplot.py
@@ -102,10 +102,10 @@ def _find_idx(l, e):
         size_matrix = size_matrix[color_matrix_features[2]]
     
     if subset_eRegulons is not None:
-        #change to TF names
-        subset_eRegulons = [x.split('_')[0] for x in subset_eRegulons]
-        size_matrix = size_matrix[[x for x in size_matrix if x.split('_')[0] in subset_eRegulons]]
-        color_matrix = color_matrix[[x for x in color_matrix if x.split('_')[0] in subset_eRegulons]]
+        #filter eRegulon
+        subset_eRegulons = [x.split('_(')[0] for x in subset_eRegulons]
+        size_matrix = size_matrix[[x for x in size_matrix if x.split('_(')[0] in subset_eRegulons]]
+        color_matrix = color_matrix[[x for x in color_matrix if x.split('_(')[0] in subset_eRegulons]]
     
     if scale_size_matrix:
         size_matrix = (size_matrix - size_matrix.min()) / (size_matrix.max() - size_matrix.min())
@@ -204,8 +204,12 @@ def heatmap_dotplot(
     order = pd.concat([idx_max[idx_max == x] for x in tmp.index.tolist() if len(plotting_df[plotting_df == x]) > 0]).index.tolist()
     plotting_df['eRegulon_name'] = pd.Categorical(plotting_df['eRegulon_name'], categories = order)
     plotnine.options.figure_size = figsize
+    #check repressor availability
+    plotting_df['repressor_activator'] = ['activator' if '+' in n.split('_')[1] and 'extended' not in n or '+' in n.split('_')[2] and 'extended' in n  else 'repressor' for n in plotting_df['eRegulon_name']]
+    repressor_availability = 'repressor' in plotting_df['repressor_activator']
+    if not repressor_availability:
+        split_repressor_activator = False
     if split_repressor_activator:
-        plotting_df['repressor_activator'] = ['activator' if '+' in n.split('_')[1] and 'extended' not in n or '+' in n.split('_')[2] and 'extended' in n  else 'repressor' for n in plotting_df['eRegulon_name']]
         if orientation == 'vertical':
             plot = (
                 ggplot(plotting_df, aes('index', 'eRegulon_name'))
@@ -218,7 +222,6 @@ def heatmap_dotplot(
                 + geom_point(
                         mapping = aes(size = 'size_val'),
                         colour = "black")
-                + theme(axis_text_x=element_text(rotation=90, hjust=1))
                 + theme(axis_title_x = element_blank(), axis_title_y = element_blank()))
         elif orientation == 'horizontal':
             plot = (
@@ -252,6 +255,7 @@ def heatmap_dotplot(
                 + geom_point(
                         mapping = aes(size = 'size_val'),
                         colour = "black")
+                + theme(axis_text_x=element_text(rotation=90, hjust=1))
                 + theme(axis_title_x = element_blank(), axis_title_y = element_blank()))
     if save is not None:
         plot.save(save)