1. Membrane Transporter/Ion Channel
  2. Proton Pump
  3. Soraprazan

Soraprazan (Synonyms: BYK61359)

Cat. No.: HY-100414 Purity: 99.02%
Handling Instructions

Soraprazan is a reversible, and fast-acting inhibitor of gastric H+/K+ ATPase.

For research use only. We do not sell to patients.

Soraprazan Chemical Structure

Soraprazan Chemical Structure

CAS No. : 261944-46-1

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10 mM * 1 mL in DMSO USD 437 In-stock
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1 mg USD 180 In-stock
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100 mg USD 3960 In-stock
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Description

Soraprazan is a reversible, and fast-acting inhibitor of gastric H+/K+ ATPase.

In Vitro

Soraprazan is a potent inhibitor of gastric H,K-ATPase, with an IC50 of 0.1 μM when measured in ion-leaky vesicles in the presence of 1 mM potassium. Soraprazan also effectively inhibits dibutyryl cAMP-stimulated [14C]AP accumulation in isolated gastric glands with an IC50 of 0.19 μM (0.09-0.40 μM geometric mean from n=6 with 95% confidence limits). In ion-leaky vesicles, soraprazan is a potent k-competitive inhibitor of the H,K-ATPase, with Ki of 6.4 nM. Soraprazan binds to the H,K-ATPase in ion-leaky vesicles with a Kd of 26.4 nM and a Bmax of 2.89 nmol/mg[1].

Molecular Weight

367.44

Formula

C₂₁H₂₅N₃O₃

CAS No.

261944-46-1

SMILES

O[[email protected]@H]1[[email protected]@H](C2=CC=CC=C2)NC3=C(C=CN4C3=NC(C)=C4C)[[email protected]]1OCCOC

Shipping

Room temperature in continental US; may vary elsewhere

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 150 mg/mL (408.23 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.7215 mL 13.6077 mL 27.2153 mL
5 mM 0.5443 mL 2.7215 mL 5.4431 mL
10 mM 0.2722 mL 1.3608 mL 2.7215 mL
*Please refer to the solubility information to select the appropriate solvent.
References
Kinase Assay
[1]

[3H]Soraprazan binding studies are carried out at 20°C. In saturation experiments to determine the Kd value, ion-leaky gastric vesicles (0.01-0.02 mg/mL) are resuspended in a buffer composed of 20 mM Tris-HCl, pH 7.0, 2 mM MgCl2, and 2 mM ATP (pH 7.0 by Tris) in the presence of increasing concentrations of [3H]soraprazan (0.1 nM-1 μM). Nonspecific binding is determined in the presence of a 100 fold excess of unlabeled soraprazan over the concentration range of [3H]soraprazan used. The enzyme suspension (1 mL) is incubated at 20°C for 30 min and rapidly filtered through a nitrocellulose membrane filter (0.45 μM) prewet with a solution composed of 20 mM Tris-HCl, pH 7.0, 10% polyethylene glycol 3350 that is placed on top of a glass fiber filter. The membrane is ished five times with 2.5 mL of a buffer composed of 20 mM Tris-HCl, pH 7.0, and 10% polyethylene glycol 3350 to remove unbound inhibitor. The membrane is put into a 20-mL scintillation vial, dimethylacetamide (0.5 mL) is added to dissolve the membrane, and 14 mL of scintillation solvent is added and counted. Binding of [3H]soraprazan is determined by subtracting the nonspecific binding of [3H]soraprazan, obtained in the presence of the 100-fold excess of nonradioactive soraprazan, from the amounts of [3H]soraprazan bound to the membrane in the absence of the cold inhibitor.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References
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Soraprazan
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