Update rosmerta.md

added some info text and added one more mermaid graph --Gemma

content/3.defense-systems/rosmerta.md

@@ -24,11 +24,11 @@ The RosmerTA system was found to have antiviral activity and named after Gallo-R
 
 ## Molecular mechanisms
 
-The RosmerTA system encodes a Zn-peptidase and a toxin of unknown function :ref{doi=10.1016/j.chom.2022.09.017} and was later found to induce membrane depolarization :ref{doi=10.1073/pnas.2305393120}.
+The RosmerTA system encodes a Zn-peptidase and a toxin of unknown function :ref{doi=10.1016/j.chom.2022.09.017}. One toxin representative has been found to induce membrane depolarization :ref{doi=10.1073/pnas.2305393120}.
 
 ## Example of genomic structure
 
-The RosmerTA is composed of 2 proteins: RmrT and RmrA.
+The RosmerTA is composed of 2 proteins: RmrT and RmrA. The toxin can vary in sequence and structure.
 
 Here is an example found in the RefSeq database:
 
@@ -88,3 +88,27 @@ end
     style Title3 fill:none,stroke:none,stroke-width:none
     style Title4 fill:none,stroke:none,stroke-width:none
 </mermaid>
+<mermaid>
+graph LR;
+    Ernits_2023[<a href='https://www.pnas.org/doi/10.1073/pnas.2305393120'>Ernits et al., 2023</a>] --> Origin_0
+    Origin_0[Gordonia phage Kita 
+<a href='https://www.ncbi.nlm.nih.gov/protein/YP_009301394.1/'>YP_009301394.1</a>, <a href='https://www.ncbi.nlm.nih.gov/protein/YP_009301394.1'>YP_009301394.1</a>] --> Expressed_0[Escherichia coli]
+    Expressed_0[Escherichia coli] ----> Bas54 and Bas59
+    subgraph Title1[Reference]
+        Ernits_2023
+end
+    subgraph Title2[System origin]
+        Origin_0
+end
+    subgraph Title3[Expression species]
+        Expressed_0
+end
+    subgraph Title4[Phage infected]
+        Bas54 
+        Bas59
+end
+    style Title1 fill:none,stroke:none,stroke-width:none
+    style Title2 fill:none,stroke:none,stroke-width:none
+    style Title3 fill:none,stroke:none,stroke-width:none
+    style Title4 fill:none,stroke:none,stroke-width:none
+</mermaid>