diff --git a/src/db_utils/interactions/config_interactions.py b/src/db_utils/interactions/config_interactions.py
index 78e0398bee63091cacbd5f6d46c7a55bb0d51760..753a9a2c3b2d238b5bd6a45ae8388d030b03812b 100644
--- a/src/db_utils/interactions/config_interactions.py
+++ b/src/db_utils/interactions/config_interactions.py
@@ -8,7 +8,6 @@ Description: Configuration variables for subfolder interactions.
 """
 
 from ..config import Config
-from pathlib import Path
 
 
 class ConfigInteractions:
@@ -29,17 +28,5 @@ class ConfigInteractions:
     chia_pet = Config.data / 'interactions_files' / 'chia_pet'
     pet_vs_exon_output = chia_pet_interaction / 'intersections_exon'
     pet_vs_gene_output = chia_pet_interaction / 'intersections_gene'
-
-
-def get_interaction_file(bed_file: Path, region_name: str):
-    """
-    Get the name of the interaction file created from the ``bed_file``.
-
-    :param bed_file: A bed file that was used to create the interaction \
-    file whose name is returned by this function.
-    :param region_name: The  name of the genomic region searched in PETs.
-    :return: The name of the interaction file
-    """
-    bed_name = bed_file.name.replace(".bed", "")
-    return ConfigInteractions.chia_pet_interaction / \
-           f"{bed_name}_{region_name}_interaction.csv"
+    couple_exon = chia_pet_interaction / 'couple_exon'
+    couple_gene = chia_pet_interaction / 'couple_gene'