A-71623 |
| Catalog No.GC16913 |
A-71623, un péptido basado en CCK-4, es un agonista completo de CCK-A potente y altamente selectivo.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 130408-77-4
Sample solution is provided at 25 µL, 10mM.
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A-71623 is a selective agonist of CCKA receptor with an IC50 value of 3.7 nM in guinea pig pancreas [1, 2].
CCKA receptors belong to a subtype of cholecystokinin (CCK) receptors in the brain. CCK is a type of neuropeptide present throughout the central nervous system. CCK can act as a neurotransmitter in both normal and abnormal brain. CCK receptors exist in two forms in the brain. Another subtype of CCK receptors is CCKB subtype [1].
In NCI-H345 cells possessing CCKB/gastrin receptors, A-71623 was weak and behaved as a partial agonist in calcium studies [2]. A-71623 had very low affinity to CCK binding sites in C6 cells with an IC50 value of 1236 ± 81 nM [3]. It is hard to find the CCKA response result of the application of A-71623 in cells.
In radioligand binding assays, A-71623 showed IC50 values of 3.7 nM for CCKA in guinea pig pancreas and 4500 nM for CCKB in cerebral cortex. Data showed that A-71623 was an agonist in stimulating the release of pancreatic amylase, and this stimulatory effect was potently inhibited by L-364,718, a CCKA antagonist. Data showed that A-71623 acted as a full agonist in stimulating the breakdown of phosphoinositide in pancreas. In the ileum, A-71623 was also a potent agonist in stimulating CCKA receptors. In guinea pig gastric glands, the affinity of A-71623 for the CCK-B/gastrin receptor was 11 µM. This result demonstrated that A-71623 should be a potent and selective agonist at CCKA receptors [2].
References:
[1]. Gracey DJ, Bell R, King DJ. Differential effects of the CCKA receptor ligands PD-140,548 and A-71623 on latent inhibition in the rat. Progress in Neuro-Psychopharmacology and Biological Psychiatry, 2002, 26(3): 497-504.
[2]. Lin CW, Shiosaki K, Miller TR, et al. Characterization of two novel cholecystokinin tetrapeptide (30-33) analogues, A-71623 and A-70874, that exhibit high potency and selectivity for cholecystokinin-A receptors. Molecular pharmacology, 1991, 39(3): 346-351.
[3]. Kaufmann R, Lindschau C, Scho T, et al. Type B cholecystokinin receptors on rat glioma C6 cells. Binding studies and measurement of intracellular calcium mobilization. Brain research, 1994, 639(1): 109-114.
| Cas No. | 130408-77-4 | SDF | |
| Chemical Name | (6S,9S,12S)-6-((1H-indol-3-yl)methyl)-12-(((S)-1-amino-1-oxo-3-phenylpropan-2-yl)(methyl)carbamoyl)-2,2-dimethyl-4,7,10-trioxo-9-(4-(3-(o-tolyl)ureido)butyl)-3-oxa-5,8,11-triazatetradecan-14-oic acid | ||
| Canonical SMILES | O=C([C@H](CCCCNC(NC1=CC=CC=C1C)=O)NC([C@H](CC2=CNC3=CC=CC=C23)NC(OC(C)(C)C)=O)=O)N[C@@H](CC(O)=O)C(N(C)[C@H](C(N)=O)CC4=CC=CC=C4)=O | ||
| Formula | C44H56N8O9 | M.Wt | 840.97 |
| Solubility | Soluble to 1 mg/ml in 20mM PBS buffer | Storage | Desiccate at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 1.1891 mL | 5.9455 mL | 11.891 mL |
| 5 mM | 0.2378 mL | 1.1891 mL | 2.3782 mL |
| 10 mM | 0.1189 mL | 0.5946 mL | 1.1891 mL |
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Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
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Quality Control & SDS
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- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 4 reference(s) in Google Scholar.)
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