TAT-Gap19
Based on 2 publication(s) in Google Scholar
TAT-Gap19, a Cx mimetic peptide, is a specific connexin43 hemichannel (Cx43 HC) inhibitor. TAT-Gap19 does not inhibits the corresponding Cx43 GJCs. TAT-Gap19 traverses the blood-brain barrier and alleviate liver fibrosis in mice.
For research use only. We do not sell to patients.
- Purity: 99.60%
- CAS No.: 1507930-54-2
- Formula: C119H212N46O26
- Molecular Weight:2703.25
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Storage:
Sealed storage, away from moisture.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
Publications Citing Use of MedChemExpress (MCE) TAT-Gap19
More
Biological Activity
TAT-Gap19 (1 mg/kg/day; an osmotic pump implanted in the peritoneal cavity; Two weeks) shows significantly decreased collagen deposition, as well as lowed amounts of α-SMA-positive cells area in mice subjected to treatment with 100-200 mg thioacetamide (TAA)/kg body weight for eight weeks[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1507930-54-2
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Appearance Solid
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Molecular Weight 2703.25
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Formula C119H212N46O26
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Color White to off-white
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Sequence Shortening
YGRKKRRQRRRKQIEIKKFK
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Sealed storage, away from moisture
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Publications (2)
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Journal Impact Factor
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Most Recent
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IBRO Neurosci Rep
Acupuncture regulates astrocyte neurotoxic polarization to protect blood-brain barrier integrity in delayed thrombolysis through mediating ERK1/2/Cx43 axis. [Abstract]2025 Apr 11:18:604-618. PMID: 40292080 -
bioRxiv
iAstrocytes model cytokine influences on complement expression and neuronal network synchronization. [Abstract]2026 Jun 5:2026.06.04.730242. PMID: 42282708
Solvent & Solubility
H2O : 50 mg/mL (18.50 mM; Need ultrasonic)
DMSO : 2 mg/mL (0.74 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
For the following dissolution methods, please prepare the working solution directly:
It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: PBS
Solubility: 100 mg/mL (36.99 mM); Clear solution; Need ultrasonic
Purity & Documentation
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Data Sheet (273 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
[1]. Verónica Abudara, et al. The connexin43 mimetic peptide Gap19 inhibits hemichannels without altering gap junctional communication in astrocytes. Front Cell Neurosci. 2014 Oct 21;8:306. [Content Brief]
[2]. Sara Crespo Yanguas, et al. TAT-Gap19 and Carbenoxolone Alleviate Liver Fibrosis in Mice. Int J Mol Sci. 2018 Mar 12;19(3):817. [Content Brief]
[3]. Laura Walrave, et al. Inhibition of astroglial connexin43 hemichannels with TAT-Gap19 exerts anticonvulsant effects in rodents. Glia. 2018 Aug;66(8):1788-1804. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
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| H2O | 1 mM | 0.3699 mL | 1.8496 mL | 3.6993 mL | 9.2481 mL |
| 5 mM | 0.0740 mL | 0.3699 mL | 0.7399 mL | 1.8496 mL | |
| 10 mM | 0.0370 mL | 0.1850 mL | 0.3699 mL | 0.9248 mL | |
| 15 mM | 0.0247 mL | 0.1233 mL | 0.2466 mL | 0.6165 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
TAT-Gap19 Related Classifications
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