Bacterial virus anti-defence systems · sequence & structure resource

Encyclopaedia of Bacterial Virus Anti-Defence Systems


Protein: AcrIF23

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Overview

Mode of Action (MoA) interacts with the Cas2/3 helicase-nuclease in the type I-F CRISPR-Cas system, inhibiting its DNA cleavage activity.
Evidence Ectopic expression (ECO_0000017) of AcrIF23 increased the plating efficiency of phages that are normally targeted by active type I-F CRISPR–Cas systems.
MoA Category binds and inhibits host defence system
Subtype(s) of the defence system(s) inhibited by the protein Defence Subtype Pseudomonas aeruginosa type I-F CRISPR-Cas
Relevant publication(s) DOI 10.1038/s41467-020-19415-3
Other components of the anti-defence system Multicomponent System -
Known structure in PDB PDB ID 7FIA
Genome(s) encoding the protein Protein Source Prophage in Pseudomonas aeruginosa
Defence system(s) inhibited by the protein Defences CRISPR-Cas

3D structure

PDB entry model.

A similar PDB structure exists: 7FIA

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Feature viewer - predicted secondary structure

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Pfam annotations

No Pfam domains found

Sequence Viewer

Amino acid position: -

MTNFQTWLDSADIPVQQNGQWIDLETGIAYDPSYNYAANTRRASLSPRGIDARAVAKTFGGRALTGTARQKEWAEKIRAEKVQQMNQDQAEMACDPSGLLTAAKFWIENRNDSAQEIAGFVMQQKALLAQHRSAKAAGQADKVAKIAAEYNALTARWGF