diff --git a/content/3.defense-systems/pd-t4-6.md b/content/3.defense-systems/pd-t4-6.md
index f0e618cdddf5bccd45846e27307c20b8b726f503..5eb31a5ee2aaf8287eb9fa9e0a7df04ea76ce495 100644
--- a/content/3.defense-systems/pd-t4-6.md
+++ b/content/3.defense-systems/pd-t4-6.md
@@ -5,14 +5,25 @@ tableColumns:
     article:
       doi: 10.1038/s41564-022-01219-4
       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.
+        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
     PFAM: PF00069, PF03793, PF07714
+contributors: 
+    - Marian Dominguez-Mirazo
+relevantAbstracts:
+    - doi: 10.1038/s41564-022-01219-4
+
 ---
 
 # PD-T4-6
+## Description
+The PD-T4-6 system is composed of a single protein. It was discovered via a selection screening of 71 *E. coli* strains challenged with diverse phage. The name stands from Phage Defense (PD) and the phage with which the strain was challenge (T4) ref:{doi=10.1038/s41564-022-01219-4}. The system has been identified as an Abortive Infection (Abi) system ref:{doi=10.1038/s41564-022-01219-4,10.1016/j.mib.2023.102312}. The protein was found within a P2-like prophage and contains a predicted Der/Thr kinase domain. Site-specific mutation in the domain reduces phage protection ref:{doi=10.1038/s41564-022-01219-4}. 
+
+## Molecular mechanisms
+As far as we are aware, the molecular mechanism is unknown.
+
 ## Example of genomic structure
 
 The PD-T4-6 system is composed of one protein: PD-T4-6.
@@ -70,13 +81,3 @@ end
     style Title3 fill:none,stroke:none,stroke-width:none
     style Title4 fill:none,stroke:none,stroke-width:none
 </mermaid>
-## Relevant abstracts
-
-::relevant-abstracts
----
-items:
-    - doi: 10.1038/s41564-022-01219-4
-
----
-::
-