From 178b17b3b2370d6583c8184862fadc33b4049fc5 Mon Sep 17 00:00:00 2001
From: tclabby <tyler.clabby@pasteur.fr>
Date: Thu, 20 Mar 2025 15:28:08 +0100
Subject: [PATCH] Update butters_gp57r.md

---
 content/3.defense-systems/butters_gp57r.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/content/3.defense-systems/butters_gp57r.md b/content/3.defense-systems/butters_gp57r.md
index df6c786c..1a0b001b 100644
--- a/content/3.defense-systems/butters_gp57r.md
+++ b/content/3.defense-systems/butters_gp57r.md
@@ -12,7 +12,13 @@ relevantAbstracts:
 
 # Butters_gp57r
 
-## To do 
+## Description
+
+The Butters_gp57r system is encoded in the Butters mycobacterium prophage and has been shown to inhibit rival phage replication <a href='https://ncbi.nlm.nih.gov/protein/YP_009304936.1'>.
+
+## Molecular Mechanism
+
+Butters_gp57r is activated post-DNA injeciton and inhibits island3 and other phage DNA amplification. This system may inhibit heterotypic phage infeciton with the HEPN domain <a href='https://ncbi.nlm.nih.gov/protein/YP_009304936.1'>. 
 
 ## Example of genomic structure
 
-- 
GitLab