Related Experiment Video
Updated: Dec 24, 2025

Extraction of Venom and Venom Gland Microdissections from Spiders for Proteomic and Transcriptomic Analyses
Published on: November 3, 2014
Centipede Venom Peptides Acting on Ion Channels
YanYan Chu1,2,3,4, PeiJu Qiu1,2,3,4, RiLei Yu1,2,3
1School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.
Centipede venom contains potent peptide toxins targeting ion channels like Nav, Kv, Cav, and TRPV1. These stable, novel peptides show promise for medical diagnostics and disease treatment.
Area of Science:
- Biochemistry
- Pharmacology
- Zoology
Background:
- Centipedes are ancient venomous arthropods.
- Their venom contains low-molecular-weight peptide toxins.
- These toxins target prey's central nervous system for hunting.
Purpose of the Study:
- To review centipede peptide toxins.
- To highlight their effects on ion channels.
- To discuss their potential applications in medicine.
Main Methods:
- Literature review of studies on centipede venom peptides.
- Analysis of reported effects on specific ion channels.
- Examination of peptide structural and functional properties.
Main Results:
- Centipede venom peptides target voltage-gated ion channels (Nav, Kv, Cav).
- They also affect the nonselective cation channel TRPV1.
- Peptides possess high potency, specificity, and stability due to disulfide bonds.
Conclusions:
- Centipede venom peptides offer novel structures and functions.
- These peptides are promising for developing diagnostic tools.
- Potential therapeutic applications in human disease treatment exist.
More Related Videos
Related Concept Videos
Voltage-gated Ion Channels
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several...
Mechanically-gated Ion Channels
The Role of Ion Channels in Neuronal Computation
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
Ligand-gated Ion Channels
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that...
Ligand-Gated Ion Channel Receptor: Gating Mechanism
Non-gated Ion Channels
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism....

