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ammtx3 peptide AmmTx3 appears to be a pore blocker of Kv4.2 and Kv4.3

Published October Oct 18, 2026 8:53 AM

In the specialized field of biochemical research, specific ligands are essential for understanding ion channel physiology. One such molecule that has garnered significant interest among researchers is the Ammtx3 peptide. As someone who follows the latest developments in peptide synthesis and ion channel modulation, I have spent considerable time reviewing the literature regarding this fascinating compound.

Understanding the Ammtx3 Peptide

Ammtx3 is a peptide Here we showed that blockade of Kv4 channels by the scorpion toxinAmmTX3impaired reference memory in a radial maze task. BmP02, a short-chainpeptidewith Read more toxin originally isolated from the venom of the *Androctonus mauretanicus*, commonly known as the Moroccan black thick-tailed scorpion. From a structural perspective, it is a member of the α-KTX 15 family of toxins. It consists of a single chain of 37 amino acid residues, characterized by an N-terminal pyroglutamate and stabilized by three disulfide bridges.

For those inquiring about its nature, it is important to note that AmmTX3 is a peptide toxin that has been the subject of extensive study due to its biological activity. It is a highly pure, synthetic, and biologically active peptide toxin often utilized in laboratory settings to investigate the complexities of cellular signaling.

Mechanism of Action and Ion Channel Selectivity

The primary utility of this compound in research lies in its function as a selective inhibitor. Specifically, AmmTX3 is a KV4 channel blocker. It has been shown to modulate the subthreshold-operating A-type K+ current, particularly in mouse cerebellar granule neurons.

Research indicates that AmmTx3 appears to be a pore blocker of Kv4.2 and Kv4.3 channels. Interestingly, its efficacy appears to be enhanced by the presence of accessory dipeptidyl peptidase-like proteins (DPP), such as DPP6. This nuance in its binding affinity makes it a precise tool for researchers looking to map specific ion channel expressions. While some peptides interact with a broad spectrum of targets, the high specificity of this molecule is what distinguishes it in comparative studies.

Technical Specifications and Availability

When sourcing this material for *in vitro* analysis, purity is a paramount concern. High-quality preparations typically off AmmTX3 TFA, a peptide toxin derived from Androctonus mauretanicus scorpion venom, functions as a selective blocker of the K_v4 channel. er a purity of >98% as determined by HPLC, with a molecular weight of approximately 3822 Da.

It is worth noting that the commercial landscape for these reagents can be volatile. AmmTX3. Cat No. P000865; CAS Number: NA; Purity: ≥95%. Discover · Lqh alpha IT especially peptide synthesis, and analytical service. Our services help Read more For instance, AmmTX3 has been withdrawn from sale for commercial reasons by some major suppliers, which has led researchers to seek alternative synthesis routes, such as native chemical ligation. When evaluating different grades, you may encounter products labeled as AmmTX3 TFA, which is simply the trifluoroacetate salt form of the molecule. AmmTX3 TFA is a peptide toxin that retains the same functional characteristics as the native form.

Comparative Research and Considerations

In my review of the literature, I have encountered various discussions regarding its selectivity. For example, while some compounds are known as a peptide that blocks the hERG current, the specific profile of this scorpion-derived agent is distinct. AmmTx3 is distinct from other toxins like AaTX1, which share by JK Maffie·2013·Cited by 71—AmmTX3, a member of the α-KTX15 family of scorpion toxins, efficiently and specifically blocks the subthreshold-operating A-type K+current in cerebellar Read more s a high sequence identity but differs in specific amino acid residues.

Whether you are looking at AmmTx3 - Latoxan Valence France AmmTX3 for its role in spatial memory studies or its ability to block A-type potassium currents, it remains a cornerstone of ion channel pharmacology. Its classification as a member of the α-KTX 15 family ensures that it will continue to be a reference point for future studies involving scorpion-derived peptide synthesis and characterization.

*Disclaimer: This article is for informational purposes for research enthusiasts and does not constitute medical, prescription, or h Venom-derived Peptide Toxins. Mayflower Bioscience provides a wide 2.43. Add to cart ·AmmTx3. 2.05 – ,352.39. Select options · Apamin. .82 Read more uman use advice. Always adhere to laboratory safety protocols when CA2667678A1 - Toxin peptide therapeutic agents handling research-grade biochemicals.*

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