diff --git a/content/3.defense-systems/panchino_gp28.md b/content/3.defense-systems/panchino_gp28.md
index 4526aea238a1de6c6f16b4217fb07cd7d22e077c..08e434fae483174b5f252c06f86c71b60145bc8a 100644
--- a/content/3.defense-systems/panchino_gp28.md
+++ b/content/3.defense-systems/panchino_gp28.md
@@ -17,7 +17,7 @@ relevantAbstracts:
 
 ## Description
 
-The Panchino gp28 defense system was described in Dedrick et al. 2017 :ref{doi=10.1038/nmicrobiol.2016.251} and is named after the Panchino prophage (on which it is located) and the corresponding gene. 
+The Panchino gp28 defense system was described in :ref{doi=10.1038/nmicrobiol.2016.251} and is named after the Panchino prophage (on which it is located) and the corresponding gene. It is a single gene system.
 
 ## Molecular mechanisms