Merge branch 'ftesson_abir_good' into 'main'

ftesson_abir_good

See merge request !208

content/3.defense-systems/abir.md

@@ -10,12 +10,29 @@ tableColumns:
     Activator: Unknown
     Effector: Unknown
     PFAM: PF00176, PF00271, PF04545, PF04851, PF13091
+contributors: 
+  - Florian Tesson
 relevantAbstracts:
-    - doi: 10.1023/A:1002027321171
-    - doi: 10.1016/j.mib.2005.06.006
+  - doi: 10.1023/A:1002027321171
+  - doi: 10.1016/j.mib.2005.06.006
+  - doi: 10.1128/aem.66.6.2647-2651.2000
 ---
 
 # AbiR
+
+## Description
+AbiR is a defense system discovered in 2000 :ref{doi=10.1128/aem.66.6.2647-2651.2000}.
+
+AbiR is one of the so-called "Abi" systems for "Abortive infection" discovered in the 90's in research related to the dairy industry :ref{doi=10.1016/j.mib.2005.06.006}. AbiR is classified as abortive infection in :ref{doi=10.1016/j.mib.2023.102312}.
+
+AbiR is composed of 3 genes: AbiRa, AbiRb, AbiRc.
+AbiRa encodes a sigma70 RNA polymerase subunit. AbiRb as homology with ParB nuclease domain according to HHpred.
+AbiRc has two different domains: a N_terminal PLD domain (PF13091) and at the C term an SNF2 DNA dependant ATPase.
+
+## Molecular mechanism
+
+As far as we are aware, the molecular mechanism is unknown.
+
 ## Example of genomic structure
 
 The AbiR is composed of 3 proteins: AbiRa, AbiRb and AbiRc.