Merge branch 'emordret-main-patch-96166' into 'main'

Update pd-t4-3.md

See merge request !90

content/3.defense-systems/pd-t4-3.md

@@ -9,9 +9,22 @@ tableColumns:
     Sensor: Unknown
     Activator: Unknown
     Effector: Unknown
+contributors:
+    - Ernest Mordret
+relevant abstracts:
+    - doi: 10.1038/s41564-022-01219-4
 ---
 
 # PD-T4-3
+ 
+## Description
+
+PD-T4-3 is a single gene system isolated during an experimental screen of fosmids derived from 71 strains of diverse E.coli, and cloned back in a derivative of K12. Fragments containing the PD-T4-3 gene were shown to provide resistance to phage T4. The protein is characterized by a GIY-YIG nuclease domain, and mutations inactivating this domain abolished the resistance phenotype. It was originally found on a µ-like prophage
+
+## Molecular mechanism
+
+the molecular mechanism of this system is unknown
+
 ## Example of genomic structure
 
 The PD-T4-3 system is composed of one protein: PD-T4-3.
@@ -69,12 +82,5 @@ 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
-
 ---
 ::