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GsMTx4

GsMTx4 is a spider venom peptide that selectively inhibits cationic-permeable mechanosensitive channels (MSCs) belonging to the Piezo and TRP channel families. GsMTx4 also blocks cation-selective stretch-activated channels (SACs), attenuates lysophosphatidylcholine (LPC) -induced astrocyte toxicity and microglial reactivity. GsMTx4 is an important pharmacological tool for identifying the role of these excitatory MSCs in normal physiology and pathology[1][2][4].

Product Specifications

CAS Number

1209500-46-8

UNSPSC

12352209

Target

Piezo Channel; TRP Channel

Type

Peptides

Related Pathways

Membrane Transporter/Ion Channel; Neuronal Signaling

Applications

COVID-19-immunoregulation

Field of Research

Inflammation/Immunology; Neurological Disease; Cardiovascular Disease

Assay Protocol

https://www.medchemexpress.com/gsmtx4.html

Purity

99.83

Solubility

DMSO : 50 mg/mL (ultrasonic)

Smiles

O=C(N[C@@H](CSSC[C@@H](C(N[C@@H](CCCNC(N)=N)C(N1[C@@H](CCC1)C(N[C@@H](CCCCN)C(N[C@@H](CC(C)C)C(N[C@H]2CCCCN)=O)=O)=O)=O)=O)NC3=O)C(N[C@@H](CC(C)C)C(N[C@@H](CCC(O)=O)C(N[C@@H](CC4=CC=CC=C4)C(N[C@@H](CC5=CNC6=CC=CC=C56)C(N[C@@H](CC7=CNC8=CC=CC=C78)C(N[C@@H](CCCCN)C(N[C@@H](CSSC[C@@H](C(N[C@@H](CO)C(N[C@@H](CCCCN)C(N[C@@H](CC(C)C)C(N[C@@H](CC9=CC=CC=C9)C(N[C@@H](CCCCN)C(N[C@H]%10CC(C)C)=O)=O)=O)=O)=O)=O)NC2=O)C(N[C@@H](CC(N)=O)C(N%11[C@@H](CCC%11)C(N[C@@H](CC(N)=O)C(N[C@@H](CC(O)=O)C(N[C@@H](CC(O)=O)C(N[C@@H](CCCCN)C(N[C@H]3CSSC[C@@H](C(N[C@@H](CC(N)=O)C(N[C@@H](CC%12=CC=CC=C%12)C(N[C@@H](CO)C(N[C@@H](CC%13=CC=CC=C%13)C(N)=O)=O)=O)=O)=O)NC%10=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)CN

Molecular Formula

C185H273N49O45S6

Molecular Weight

4095.84

References & Citations

[1]Gnanasambandam R, et al. GsMTx4: Mechanism of Inhibiting Mechanosensitive Ion Channels. Biophys J. 2017 Jan 10;112 (1) :31-45. |[2]T M Suchyna, et al. Identification of a peptide toxin from Grammostola spatulata spider venom that blocks cation-selective stretch-activated channels. J Gen Physiol. 2000 May;115 (5) :583-98. |[3]Anna Acheva, et al. Adipokine Leptin Co-operates With Mechanosensitive Ca 2 +-Channels and Triggers Actomyosin-Mediated Motility of Breast Epithelial Cells. Front Cell Dev Biol. 2021 Jan 6;8:607038. |[4]María Velasco-Estevez, et al. Inhibition of Piezo1 attenuates demyelination in the central nervous system. Glia. 2020 Feb;68 (2) :356-375. |[5]Medha M Pathak, et al. Stretch-activated ion channel Piezo1 directs lineage choice in human neural stem cells. Proc Natl Acad Sci U S A. 2014 Nov 11;111 (45) :16148-53.|[6]Seung Pyo Park, et al. A tarantula spider toxin, GsMTx4, reduces mechanical and neuropathic pain. Pain. 2008 Jul;137 (1) :208-217.

Shipping Conditions

Blue Ice

Storage Conditions

-80°C, 2 years; -20°C, 1 year (Powder, sealed storage, away from moisture and light)

Scientific Category

Peptides

Clinical Information

No Development Reported

Citation 01

ACS Appl Mater Interfaces. 2025 Jan 29;17 (4) :5866-5879.|ACS Appl Mater Interfaces. 2025 Oct 15;17 (41) :56861-56876.|Adv Sci (Weinh) . 2024 Mar;11 (12) :e2309133.|Adv Sci (Weinh) . 2024 Sep 11:e2409081.|Adv Sci (Weinh) . 2025 Oct 13:e09932.|Aging Cell. 2024 Nov 28:e14440.|Am J Physiol Cell Physiol. 2022 Oct 1;323 (4) :C959-C973.|Am J Physiol Lung Cell Mol Physiol. 2025 Aug 1;329 (2) :L296-L306.|Arch Oral Biol. 2023 Nov:155:105798.|Arthritis Res Ther. 2023 Jul 7;25 (1) :117.|Biochem Biophys Res Commun. 2023 Jan 1:638:140-146.|Biochem Pharmacol. 2025 Aug 29;242 (Pt 1) :117293.|Biochim Biophys Acta Mol Basis Dis. 2025 Sep 7;1872 (1) :168042.|BioChip J. 2025 Aug 1.|Biology (Basel) . 2024 May 19;13 (5) :357.|Biomater Res. 2025 Apr 9:29:0182.|bioRxiv. 2023 Jan 13:2023.01.12.523838.|bioRxiv. 2023 Oct 9:2023.10.09.561581.|bioRxiv. 2024 Jun 3:2024.06.02.597001.|bioRxiv. 2024 May 8:2024.05.07.592424.|bioRxiv. 2024 November 26.|bioRxiv. 2024 September 22.|bioRxiv. 2025 January 08.|bioRxiv. 2025 Mar 26:2025.03.25.645313.|Bone. 2025 Jun:195:117464.|Brain Behav Immun. 2025 Jul:127:341-357.|Cancer Med. 2025 Jul;14 (14) :e71059.|Cardiovasc Diabetol. 2025 Mar 20;24 (1) :127.|Cardiovasc Toxicol. 2025 Jul 24.|Cell Biosci. 2023 Jan 12;13 (1) :7.|Cell Commun Signal. 2025 Jun 13;23 (1) :280.|Cell Discov. 2022 Sep 6;8 (1) :84.|Cell Prolif. 2024 Aug;57 (8) :e13640.|Cell Rep. 2025 Apr 24;44 (5) :115630.|Cell Rep. 2025 Jan 28;44 (1) :115136.|Cell. 2024 Jun 20;187 (13) :3409-3426.e24.|Clin Transl Med. 2023 Nov;13 (11) :e1481.|CNS Neurosci Ther. 2024 Sep;30 (9) :e14872.|FASEB J. 2022 Aug;36 (8) :e22423.|Genes Dis. 2024 Sep 15;12 (2) :101434.|Hypertension. 2021 Sep;78 (3) :647-660.|Int Immunopharmacol. 2025 Jul 26:163:115284.|Int J Biol Macromol. 2025 Sep 25;330 (Pt 1) :147928.|Int J Mol Sci. 2023 Feb 16;24 (4) :4022.|Invest Ophthalmol Vis Sci. 2023 Jun 1;64 (7) :1.|J Cachexia Sarcopenia Muscle. 2025 Aug;16 (4) :e70004.|J Cell Mol Med. 2024 Dec;28 (23) :e70237.|J Cell Mol Med. 2024 Jun;28 (11) :e18472.|J Orthop Translat. 2024 Aug 13:48:146-155.|J Physiol. 2025 Aug 28.|J Transl Med. 2023 Oct 10;21 (1) :711.|Mater Today Adv. 2023, 17: 100325.|Mater Today Bio. 2023 Jul 20:22:100735.|Mater Today Bio. 2025 Mar 8:31:101645.|Mech Ageing Dev. 2023 Dec:216:111880.|Mol Med. 2025 Apr 22;31 (1) :147.|Mol Med. 2025 Aug 2;31 (1) :272.|Nat Biotechnol. 2025 Nov 10.|Nat Commun. 2024 Aug 27;15 (1) :7369.|Nat Commun. 2025 Jul 25;16 (1) :6868.|Nat Commun. 2025 Mar 8;16 (1) :2329.|Nat Commun. 2025 Sep 29;16 (1) :8541.|Neuron. 2023 Jan 4;111 (1) :15-29.e8.|Parasit Vectors. 2024 Feb 1;17 (1) :46.|Preprints. 2024 Apr 17.|Redox Biol. 2024 Sep 7:76:103346.|Regen Biomater. 2025 Jun 16:12:rbaf056.|Ren Fail. 2024 Dec;46 (2) :2415519.|Res Sq. 2025 May 28.|Res Sq. 2025 Oct 22.|Research (Wash D C) . 2025 Jun 3:8:0718.|Research Square Preprint. 2024 Apr 5.|Research Square Print. December 8th, 2022.|Sci Adv. 2024 Oct 25;10 (43) :eadp4726.|Sci Rep. 2025 May 8;15 (1) :15975.|Signal Transduct Target Ther. 2025 Aug 21;10 (1) :269.|Skelet Muscle. 2025 May 14;15 (1) :13.|Small Sci. 2025 Jul 14.|Small Struct. 2025 Sep 27.|SSRN. 2025 Apr 25.|Ultrasound Med Biol. 2025 Mar;51 (3) :494-507.|Virulence. 2025 Dec;16 (1) :2490208.|Adv Sci (Weinh) . 2025 Jul 26:e02052.|Am J Physiol Lung Cell Mol Physiol. 2022 May 1;322 (5) :L737-L760.|Biomed Pharmacother. 2024 Jul:176:116837.|Int Immunopharmacol. 2024 Jul 14:139:112664.|J Clin Invest. 2025 Jun 2;135 (11) :e184158.|J Gastroenterol Hepatol. 2021 Nov;36 (11) :3127-3139.|J Nanobiotechnology. 2025 Apr 5;23 (1) :274.|J Neurochem. 2022 Feb;160 (3) :376-391.|J Orthop Res. 2023 Aug;41 (8) :1792-1802.|Mol Med. 2025 Mar 8;31 (1) :90.|Neuropharmacology. 2024 Jun 15:251:109896.|Research (Wash D C) . 2023:6:0063.|Stem Cells Int. 2022 Jul 29:2022:6202842.

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