Bacterial virus anti-defence systems · sequence & structure resource

Encyclopaedia of Bacterial Virus Anti-Defence Systems


Protein: DpdA

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Overview

Mode of Action (MoA) inserts the 7-deazaguanine base into phage genomic DNA, with 2′-deoxy-7-deazaguanine modifications protecting phage DNA from host restriction enzymes.
Evidence dPreQ0 was found in strains expressing dpdA (ECO_0001096). Phages with modifications (e.g., dG+, dPreQ0, dPreQ1) showed varied resistance to various restriction enzymes.
MoA Category modifies phage molecules to avoid recognition
Subtype(s) of the defence system(s) inhibited by the protein Defence Subtype Type II RM (in vitro)
Relevant publication(s) DOI 10.1038/s41467-019-13384-y
Other components of the anti-defence system Multicomponent System -
Known structure in PDB PDB ID -
Genome(s) encoding the protein Protein Source Enterobacteria phage 9g
Defence system(s) inhibited by the protein Defences RM

3D structure

AlphaFold 3 model.

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Feature viewer - predicted secondary structure

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Pfam annotations

No Pfam domains found

Sequence Viewer

Amino acid position: -

MNVFMAAVYTNGYMPGQQRYEKLSEHEKNITRNLPHILESYHYVGRQKYVDQMRADGAKVFLDSGAFSAHSLGAHIDIVEYCEYIKRNKDILRVEDGAVMASVLDGIGDPLQTYRNQLEMEARGAKPLPCFHFGEDFRYLEYYMKNYEYITIGGMVGRSTDTLKTWLDRMWDKYICDGSGRAKIKLHAFGITSTTIMERYPWYSCDSSSWIQAAAFGSVVTPPWGPMRVSDKSPDRHHFGKHVSTLTEIEQDAVLKYLEQNGFTYERLSTIYESRAAFNLWAYGVIAANINATHDGTFRDRVMELF