Catestatin (rat)
Catestatin (rat) (Rat chromogranin A367–387) is a potent, reversible, noncompetitive, and noncooperative nicotinic cholinergic antagonist derived from chromogranin A (A367-387). Catestatin (rat) inhibits norepinephrine release in rat PC12 pheochromocytoma cells (IC50 = 1.2 μM), and blocks desensitization of norepinephrine release (IC50 = 0.62 μM). Catestatin (rat) exerts antiadrenergic effects through the endothelial PI3K-AKT-eNOS pathway in rat papillary muscles and isolated cardiomyocytes. Catestatin (rat) maintains mitochondrial membrane potential in I/R cardiomyocytes and increases phosphorylation of AKT at S473, GSK3β at S9, PLB at T17, and eNOS at S1179. Catestatin (rat) reverses desensitization of 22Na+ uptake. Catestatin (rat) can be used for the study of nicotinic cholinergic receptor regulation and catecholamine release control mechanisms.
For research use only. We do not sell to patients.
- Formula: C109H173N35O28S
- Molecular Weight:2453.82
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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Molecular Weight 2453.82
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Formula C109H173N35O28S
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SMILES
O=C(N[C@@H](CO)C(N[C@@H](CCSC)C(N[C@@H](CCCCN)C(N[C@@H](CC(C)C)C(N[C@@H](CO)C(N[C@@H](CC1=CC=CC=C1)C(N[C@@H](CCCNC(N)=N)C(N[C@@H](C)C(N[C@@H](CCCNC(N)=N)C(N[C@@H](C)C(N[C@@H](CC2=CC=C(C=C2)O)C(NCC(N[C@@H](CC3=CC=CC=C3)C(N[C@@H](CCCNC(N)=N)C(N[C@@H](CC(O)=O)C(N4[C@@H](CCC4)C(NCC(N5[C@@H](CCC5)C(N[C@@H](CCC(N)=O)C(N[C@@H](CC(C)C)C(O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)[C@H](CCCNC(N)=N)N
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Synonyms
Rat chromogranin A367–387
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Sequence
Arg-Ser-Met-Lys-Leu-Ser-Phe-Arg-Ala-Arg-Ala-Tyr-Gly-Phe-Arg-Asp-Pro-Gly-Pro-Gln-Leu
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Sequence Shortening
RSMKLSFRARAYGFRDPGPQL
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
[1]. Mahata SK, et al. Desensitization of catecholamine release. The novel catecholamine release-inhibitory peptide catestatin (chromogranin a344-364) acts at the receptor to prevent nicotinic cholinergic tolerance. J Biol Chem. 1999 Jan 29;274(5):2920-8. [Content Brief]
[2]. Mahata SK, et al. Chromogranin A and its fragments in cardiovascular, immunometabolic, and cancer regulation. Ann N Y Acad Sci. 2019 Nov;1455(1):34-58. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)