diff --git a/content/3.defense-systems/pd-t7-5.md b/content/3.defense-systems/pd-t7-5.md
index 3533e9d27456aa8cde41089ecb9ec8d5bcf5031c..5fd93b030e930bbce13bfa37fa61d3592d98f2f2 100644
--- a/content/3.defense-systems/pd-t7-5.md
+++ b/content/3.defense-systems/pd-t7-5.md
@@ -4,16 +4,26 @@ layout: article
 tableColumns:
     article:
       doi: 10.1038/s41564-022-01219-4
-      abstract: |
+      abstract: 
         The ancient, ongoing coevolutionary battle between bacteria and their viruses, bacteriophages, has given rise to sophisticated immune systems including restriction-modification and CRISPR-Cas. Many additional anti-phage systems have been identified using computational approaches based on genomic co-location within defence islands, but these screens may not be exhaustive. Here we developed an experimental selection scheme agnostic to genomic context to identify defence systems in 71 diverse E. coli strains. Our results unveil 21 conserved defence systems, none of which were previously detected as enriched in defence islands. Additionally, our work indicates that intact prophages and mobile genetic elements are primary reservoirs and distributors of defence systems in E. coli, with defence systems typically carried in specific locations or hotspots. These hotspots encode dozens of additional uncharacterized defence system candidates. Our findings reveal an extended landscape of antiviral immunity in E. coli and provide an approach for mapping defence systems in other species.
     Sensor: Unknown
     Activator: Unknown
     Effector: Unknown
+contributors: 
+    - Hugo Vaysset
+relevantAbstracts:
+    - 10.1038/s41564-022-01219-4
 ---
 
 # PD-T7-5
-## Example of genomic structure
 
+## Description
+PD-T7-5 is a defense system composed of a single protein which was discovered in :ref{doi=10.1038/s41564-022-01219-4}. Its antiphage activity was assessed by heterologous expression in *E. coli* against T7 and to reduce the size of lysis plaques of T3 :ref{doi=10.1038/s41564-022-01219-4}. PD-T7-5 contains a PD(D/E)XK nuclease domain like [PD-T7-1](/defense-systems/pd-t7-1).
+
+## Molecular mechanism
+As far as we are aware, the molecular mechanism is unknown. However, the presence of a PD(D/E)XK domain in PD-T7-5 suggests a mechanism of action via DNA degradation :ref{doi=10.1038/s41564-022-01219-4}.
+
+## Example of genomic structure
 The PD-T7-5 system is composed of one protein: PD-T7-5.
 
 Here is an example found in the RefSeq database: 
@@ -24,7 +34,7 @@ PD-T7-5 system in the genome of *Bacillus cereus* (GCF_001941885.1) is composed
 
 ## Distribution of the system among prokaryotes
 
-The PD-T7-5 system is present in a total of 128 different species.
+The PD-T7-5 system is present in a total of 128 different species across a wide range of bacterial phyla :ref{doi=10.1038/s41564-022-01219-4}.
 
 Among the 22k complete genomes of RefSeq, this system is present in 363 genomes (1.6 %).
 
@@ -69,12 +79,3 @@ end
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 </mermaid>
-## Relevant abstracts
-
-::relevant-abstracts
----
-items:
-    - doi: 10.1038/s41564-022-01219-4
-
----
-::