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Harvesting Venom Toxins from Assassin Bugs and Other Heteropteran Insects
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[Relationships between venomous function and innate immune function].

Max Goyffon1, Frederick Saul2, Grazyna Faure3

  • 1UMR CNRS 7245, Département RDDM, Muséum national d'Histoire naturelle, 57 rue Cuvier, 75005 Paris, France.

Biologie Aujourd'Hui
|January 29, 2016
PubMed
Summary
This summary is machine-generated.

Venomous toxins and innate immune proteins share common ancestors and structural features. This suggests a deep evolutionary link between venom function and immune defense in both invertebrates and vertebrates.

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Area of Science:

  • Biochemistry
  • Evolutionary Biology
  • Immunology

Background:

  • Venomous function and innate immunity are critical for organism survival.
  • Understanding the relationship between these systems can reveal novel biological insights.

Purpose of the Study:

  • To investigate the interrelation between venomous functions and innate immune functions.
  • To explore the structural, functional, and phylogenetic connections between venom toxins and immune components.

Main Methods:

  • Comparative structural analysis of scorpion toxins and defensins.
  • Genomic analysis of toxin and defensin gene families.
  • Structural and functional studies of snake venom phospholipase A2 inhibitors.

Main Results:

  • Scorpion short toxins and defensins share a common protein folding scaffold and conserved motifs.
  • Genomic analysis indicates a common ancestor for scorpion toxins and defensins.
  • Snake venom phospholipase A2 inhibitors exhibit structural homology with innate immune proteins.

Conclusions:

  • Venomous function and innate immune function are closely interrelated in both vertebrates and invertebrates.
  • Structural, functional, and phylogenetic evidence supports a shared evolutionary origin.
  • This interrelation highlights a conserved biological strategy for defense and offense.