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Calystegine B3
ChemFaces products have been cited in many studies from excellent and top scientific journals
Product Name Calystegine B3
Price:
CAS No.: 178231-95-3
Catalog No.: CFN00162
Molecular Formula: C7H13NO4
Molecular Weight: 175.18 g/mol
Purity: >=98%
Type of Compound: Alkaloids
Physical Desc.: Powder
Source: The root barks of Lycium chinense Mill.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS    SDF
Similar structural: Comparison (Web)  (SDF)
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Related Screening Libraries
Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
10 mM * 1 mL in DMSO / Inquiry / In-stock
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Biological Activity
Description: Calystegine B3 is a highly specific inhibitor for Man2C1 among various α-mannosidases prepared from rat liver, it could thus serve as a potent tool for the development of a highly specific in vivo inhibitor for Man2C1.
Targets: Man2C1
Calystegine B3 Description
Source: The root barks of Lycium chinense Mill.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Recently, ChemFaces products have been cited in many studies from excellent and top scientific journals

Cell. 2018 Jan 11;172(1-2):249-261.e12.
doi: 10.1016/j.cell.2017.12.019.
IF=36.216(2019)

PMID: 29328914

Cell Metab. 2020 Mar 3;31(3):534-548.e5.
doi: 10.1016/j.cmet.2020.01.002.
IF=22.415(2019)

PMID: 32004475

Mol Cell. 2017 Nov 16;68(4):673-685.e6.
doi: 10.1016/j.molcel.2017.10.022.
IF=14.548(2019)

PMID: 29149595

ACS Nano. 2018 Apr 24;12(4): 3385-3396.
doi: 10.1021/acsnano.7b08969.
IF=13.903(2019)

PMID: 29553709

Nature Plants. 2016 Dec 22;3: 16206.
doi: 10.1038/nplants.2016.205.
IF=13.297(2019)

PMID: 28005066

Sci Adv. 2018 Oct 24;4(10): eaat6994.
doi: 10.1126/sciadv.aat6994.
IF=12.804(2019)

PMID: 30417089
Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 5.7084 mL 28.5421 mL 57.0841 mL 114.1683 mL 142.7104 mL
5 mM 1.1417 mL 5.7084 mL 11.4168 mL 22.8337 mL 28.5421 mL
10 mM 0.5708 mL 2.8542 mL 5.7084 mL 11.4168 mL 14.271 mL
50 mM 0.1142 mL 0.5708 mL 1.1417 mL 2.2834 mL 2.8542 mL
100 mM 0.0571 mL 0.2854 mL 0.5708 mL 1.1417 mL 1.4271 mL
* Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
Protocol
Kinase Assay:
J Biochem. 2011 Apr;149(4):415-22.
Calystegine B3 as a specific inhibitor for cytoplasmic alpha-mannosidase, Man2C1.[Pubmed: 21217149]
Development of a specific inhibitor for Man2C1 is critical to understanding its biological significance.
METHODS AND RESULTS:
In this study, we identified a plant-derived alkaloid, Calystegine B3, as a potent specific inhibitor for Man2C1 activity. Biochemical enzyme assay revealed that Calystegine B3 was a highly specific inhibitor for Man2C1 among various α-mannosidases prepared from rat liver. Consistent with this in vitro result, an in vivo experiment also showed that treatment of mammalian-derived cultured cells with this compound resulted in drastic change in both structure and quantity of free oligosaccharides in the cytosol, whereas no apparent change was seen in cell-surface oligosaccharides.
CONCLUSIONS:
Calystegine B3 could thus serve as a potent tool for the development of a highly specific in vivo inhibitor for Man2C1.
Structure Identification:
Bioorg Med Chem. 2014 Apr 15;22(8):2435-41.
Docking and SAR studies of calystegines: binding orientation and influence on pharmacological chaperone effects for Gaucher's disease.[Pubmed: 24657053]
We report on the identification of the required configuration and binding orientation of nor-tropane alkaloid calystegines against β-glucocerebrosidase.
METHODS AND RESULTS:
Calystegine B2 is a potent competitive inhibitor of human lysosomal β-glucocerebrosidase with Ki value of 3.3 μM. A molecular docking study revealed that calystegine B2 had a favorable van der Waals interactions (Phe128, Trp179, and Phe246) and the hydrogen bonding (Glu235, Glu340, Asp127, Trp179, Asn234, Trp381 and Asn396) was similar to that of isofagomine. All calystegine isomers bound into the same active site as calystegine B2 and the essential hydrogen bonds formed to Asp127, Glu235 and Glu340 were maintained. However, their binding orientations were obviously different. Calystegine A3 bound to β-glucocerebrosidase with the same orientations as calystegine B2 (Type 1), while Calystegine B3 and B4 had different binding orientations (Type 2). It is noteworthy that Type 1 orientated calystegines B2 and A3 effectively stabilized β-glucocerebrosidase, and consequently increased intracellular β-glucocerebrosidase activities in N370S fibroblasts, while Type 2 orientated calystegines B3 and B4 could not keep the enzyme activity.
CONCLUSIONS:
These results clearly indicate that the binding orientations of calystegines are changed by the configuration of the hydroxyl groups on the nor-tropane ring and the suitable binding orientation is a requirement for achieving a strong affinity to β-glucocerebrosidase.
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