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title: Gao_TerY
layout: article
tableColumns:
    article:
      doi: 10.1126/science.aba0372
      abstract: |
        Bacteria and archaea are frequently attacked by viruses and other mobile genetic elements and rely on dedicated antiviral defense systems, such as restriction endonucleases and CRISPR, to survive. The enormous diversity of viruses suggests that more types of defense systems exist than are currently known. By systematic defense gene prediction and heterologous reconstitution, here we discover 29 widespread antiviral gene cassettes, collectively present in 32% of all sequenced bacterial and archaeal genomes, that mediate protection against specific bacteriophages. These systems incorporate enzymatic activities not previously implicated in antiviral defense, including RNA editing and retron satellite DNA synthesis. In addition, we computationally predict a diverse set of other putative defense genes that remain to be characterized. These results highlight an immense array of molecular functions that microbes use against viruses.
    Sensor: Unknown
    Activator: Unknown
    Effector: Unknown
relevantAbstracts:
    - doi: 10.1126/science.aba0372

Gao_TerY

Example of genomic structure

The Gao_TerY is composed of 3 proteins: TerYA, TerYB and TerYC.

Here is an example found in the RefSeq database:

gao_tery

The Gao_TerY system in Arachidicoccus terrestris (GCF_020042345.1, NZ_CP083387) is composed of 3 proteins TerYA (WP_224070248.1) TerYB (WP_224070249.1) TerYC (WP_224070250.1)

Distribution of the system among prokaryotes

Among the 22,803 complete genomes of RefSeq, the Gao_TerY is detected in 126 genomes (0.55 %).

The system was detected in 74 different species.

gao_tery

Proportion of genome encoding the Gao_TerY system for the 14 phyla with more than 50 genomes in the RefSeq database.

Structure

Gao_TerY

Example 1

::molstar-pdbe-plugin

height: 700 dataUrls:

  • /gao_tery/Gao_TerY.Gao_TerY__TerYA.0.V.cif
  • /gao_tery/Gao_TerY.Gao_TerY__TerYB.0.V.cif
  • /gao_tery/Gao_TerY.Gao_TerY__TerYC.0.V.cif

::

Experimental validation

graph LR; Gao_2020[Gao et al., 2020] --> Origin_0 Origin_0[Citrobacter gillenii WP_115257868.1, WP_115257869.1, WP_115257870.1] --> Expressed_0[Escherichia coli] Expressed_0[Escherichia coli] ----> T3 & T7 & PhiV-1 subgraph Title1[Reference] Gao_2020 end subgraph Title2[System origin] Origin_0 end subgraph Title3[Expression species] Expressed_0 end subgraph Title4[Protects against] T3 T7 PhiV-1 end style Title1 fill:none,stroke:none,stroke-width:none style Title2 fill:none,stroke:none,stroke-width:none style Title3 fill:none,stroke:none,stroke-width:none style Title4 fill:none,stroke:none,stroke-width:none