Update sanata.md

issue #239 (closed)

content/3.defense-systems/sanata.md

@@ -10,9 +10,23 @@ tableColumns:
     Activator: Unknown
     Effector: Unknown
     PFAM: PF08843
+contributors:
+    - Alba Herrero del Valle
+
+relevantAbstracts:
+    - doi: 10.1016/j.molcel.2013.02.002
 ---
 
 # SanaTA
+
+## Description
+
+The SanaTA system is composed of 2 proteins: SanaT and, SanaA, where SanaT encodes a toxin and SanaA encodes an antitoxin to form a toxin-antitoxin (TA) system. The toxin protein, SanaT, contains a Nucleotidyl transferase domain (PF08843). This system provides resistance against mutated T7 phages that lack the nonessential 4.5 gene in *Shewanella sp.* ANA-3. Sberro et al. showed that the defensiveness of sanaTA depends on the cleavage of SanaA by the Lon system, a protease that degrades the antitoxin to allow the activity of the toxin :ref{doi=10.1016/j.molcel.2013.02.002}.
+
+## Molecular mechanism
+
+It has been shown to function as a toxin-antitoxin (TA) system.
+
 ## Example of genomic structure
 
 The SanaTA system is composed of 2 proteins: SanaT and, SanaA.
@@ -75,13 +89,5 @@ 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: 10.1016/j.molcel.2013.02.002
 
----
-::