Tertiapin-Q
Based on 3 publication(s) in Google Scholar
Tertiapin-Q is a highly selective blocker of GIRK1/4 heterodimer and ROMK1 (Kir1.1).
For research use only. We do not sell to patients.
- Purity: 99.81%
- CAS No.: 910044-56-3
- Formula: C106H175N35O24S4
- Molecular Weight:2452.00
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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 Citing Use of MedChemExpress (MCE) Tertiapin-Q
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Biological Activity
Potassium channel[1]
Tertiapin-Q is a highly selective blocker of G protein-coupled inwardly rectifying potassium (GIRK1/4) heterodimer and renal outer medullary potassium channel (ROMK1, Kir1.1)[1]. Tertiapin-Q is a potent and selective blocker for Kir1.1 renal outer medullary potassium, Kir3.1-Kir3.4 channels and calcium activated large conductance potassium channels (big potassium channels). The somatostatin (SS-14)-activated current is almost completely blocked (93.2±2.9%, n=5; P<0.01) by preincubation with the G protein-coupled inwardly rectifying potassium (GIRK) channel blocker Tertiapin-Q (TPN-Q)[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 910044-56-3
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Appearance Solid
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Molecular Weight 2452.00
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Formula C106H175N35O24S4
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Color White to off-white
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Sequence
Ala-Leu-Cys-Asn-Cys-Asn-Arg-Ile-Ile-Ile-Pro-His-Gln-Cys-Trp-Lys-Lys-Cys-Gly-Lys-Lys-NH2 (Disulfide bridge: Cys3-Cys14, Cys5-Cys18)
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Sequence Shortening
ALCNCNRIIIPHQCWKKCGKK-NH2 (Disulfide bridge: Cys3-Cys14, Cys5-Cys18)
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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 (3)
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Journal Impact Factor
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Most Recent
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Nat Chem Biol
Photo-cross-linking-assisted deorphanization deciphers GPR50-L-LEN pairing in metabolism. [Abstract]2026 Jan 6. PMID: 41495223 -
Psychopharmacology (Berl)
The effects of serotonergic psychedelics in synaptic and intrinsic properties of neurons in layer II/III of the orbitofrontal cortex. [Abstract]2023 Jun;240(6):1275-1285. PMID: 37071130 -
Physiol Rep
Ivabradine increases the high frequency gain ratio in the vagal heart rate transfer function via an interaction with muscarinic potassium channels. [Abstract]2021 Dec;9(23):e15134. PMID: 34889074
Solvent & Solubility
H2O : 50 mg/mL (20.39 mM; Need ultrasonic)
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)
Protocol
Rabbits[3]
Male New Zealand White rabbits weighing 3.0-3.5 kg are used for this study. Effects of Vernakalant, Ranolazine and Tertiapin-Q on the atrial effective refractory period (AERP) in the control and rapid atrial pacing (RAP) rabbits. Vernakalant (left panels, 3 mg/kg, n=5 for each group), Ranolazine (middle panels; 10 mg/kg, n=6 for each group) or Tertiapin-Q (right panels; 0.03 mg/kg, n=5 for each group) is intravenously administered to the control or RAP rabbits. AERP is measured before and 10 min after the administration of each drug, which are shown in the lower panels.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (281 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]. Picton LD, et al. Mechanisms underlying the endogenous dopaminergic inhibition of spinal locomotor circuit function in Xenopus tadpoles. Sci Rep. 2016 Oct 20;6:35749. [Content Brief]
[2]. Günther T, et al. Research Resource: Real-Time Analysis of Somatostatin and Dopamine Receptor Signaling in Pituitary Cells Using a Fluorescence-Based Membrane Potential Assay. Mol Endocrinol. 2016 Apr;30(4):479-90. [Content Brief]
[3]. Chiba T, et al. Influences of rapid pacing-induced electrical remodeling on pharmacological manipulation of the atrial refractoriness in rabbits. J Pharmacol Sci. 2016 Mar;130(3):170-6. [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 |
|---|---|---|---|---|---|
| H2O | 1 mM | 0.4078 mL | 2.0392 mL | 4.0783 mL | 10.1958 mL |
| 5 mM | 0.0816 mL | 0.4078 mL | 0.8157 mL | 2.0392 mL | |
| 10 mM | 0.0408 mL | 0.2039 mL | 0.4078 mL | 1.0196 mL | |
| 15 mM | 0.0272 mL | 0.1359 mL | 0.2719 mL | 0.6797 mL | |
| 20 mM | 0.0204 mL | 0.1020 mL | 0.2039 mL | 0.5098 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.