diff --git a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/shared/basic/dto/MaterialReplicaSubgroupFeatureSummary.java b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/shared/basic/dto/MaterialReplicaSubgroupFeatureSummary.java
index 03a1b3042e0b47c9f5f633ff85559f3356575964..cb9ee0e0eae1c1d162e27c6c7696b5fb30a6e318 100644
--- a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/shared/basic/dto/MaterialReplicaSubgroupFeatureSummary.java
+++ b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/shared/basic/dto/MaterialReplicaSubgroupFeatureSummary.java
@@ -26,9 +26,6 @@ public class MaterialReplicaSubgroupFeatureSummary implements ISerializable
 {
     private static final long serialVersionUID = ServiceVersionHolder.VERSION;
 
-    // TODO KE : do we need this at all ?
-    // private int[] replicaSequenceNumbers;
-
     private float[] featureValues;
 
     // e.g. average or median of all replica values in this subgroup