Bacterial virus anti-defence systems · sequence & structure resource

Encyclopaedia of Bacterial Virus Anti-Defence Systems


Protein: AcrVIA2+

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Overview

Mode of Action (MoA) binds to the Leptotrichia wadei Cas13-crRNA, inhibiting its activity.
Evidence Ectopic expression (ECO_0000017) of AcrVIA2 in restores growth under Cas13a-mediated targeting in both phage and plasmid interference assays. Purified AcrVIA2 inhibits Cas13a RNase activity in vitro (ECO_0000184). Binds specifically to the Cas13a-crRNA complex (ECO_0005644).
MoA Category binds and inhibits host defence system
Subtype(s) of the defence system(s) inhibited by the protein Defence Subtype Leptotrichia buccalis type VI-A CRISPR-Cas
Relevant publication(s) DOI 10.1016/j.molcel.2020.03.033
Other components of the anti-defence system Multicomponent System -
Known structure in PDB PDB ID 7XMW
Genome(s) encoding the protein Protein Source MGE in Leptotrichia wadei
Defence system(s) inhibited by the protein Defences CRISPR-Cas

3D structure

PDB entry model.

A similar PDB structure exists: 7XMW

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Feature viewer - predicted secondary structure

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Pfam annotations

No Pfam domains found

Sequence Viewer

Amino acid position: -

MWKCKKCGCDRFYQDITGGISEVLEMDKDGEVLDEIDDVEYGDFSCAKCDNSSSKIQEIAYWDEINGKNKTYLSKDK