Snake venomics - from low-resolution toxin-pattern recognition to toxin-resolved venom proteomes with absolute...

Area of Science:

• Venomics
• Evolutionary Ecology
• Biotechnology

Background:

• Venoms are crucial phenotypes for predation and defense in many organisms.
• Omics technologies have elucidated the evolutionary drivers of snake venom variability.
• Understanding venom composition is vital for ecological and biotechnological research.

Purpose of the Study:

• To review recent advancements in venomics, specifically absolute protein quantification and top-down mass spectrometry.
• To highlight novel elemental and molecular mass spectrometry techniques for venom analysis.

Main Methods:

• Absolute quantification of intact proteins using elemental mass spectrometry (ICP-MS) with sulfur detection.
• Top-down molecular mass spectrometry for proteoform-resolved venom analysis.

Main Results:

• Inductively coupled plasma mass spectrometry (ICP-MS) allows absolute quantification of venom toxins using a single sulfur standard.
• Top-down venomics is emerging as a powerful tool for detailed venom proteome analysis.
• These methods offer a significant improvement over existing quantitative techniques.

Conclusions:

• Integrating elemental and molecular mass spectrometry provides a quantitative leap in venom studies.
• Proteoform-resolved venom analysis is essential for understanding venom evolution.
• These advancements will drive new discoveries in venom ecology and biotechnology.