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Framycetin

Framycetin (Neomycin B), an aminoglycoside antibiotic, is a potent RNase P cleavage activity inhibitor with a Ki of 35 μM. Framycetin competes for specific divalent metal ion binding sites in RNase P RNA. Framycetin inhibits hammerhead ribozyme with a Ki of 13.5 μM. Framycetin, a 5″-azido neomycin B precursor, binds the Drosha site in miR-525 and is used for hepatic encephalopathy and enteropathogenic E. coli infections[1][2].

Product Specifications

CAS Number

119-04-0

Product Name Alternative

Neomycin B; Fradiomycin B

UNSPSC

12352005

Hazard Statement

H317, H334

Target

Antibiotic; Bacterial

Type

Reference compound

Related Pathways

Anti-infection

Applications

COVID-19-immunoregulation

Field of Research

Infection

Assay Protocol

https://www.medchemexpress.com/Framycetin.html

Concentration

16.27 mM * 2.5 mL in 0.9% NaCl

Solubility

DMSO : 50 mg/mL (ultrasonic) |H2O : 100 mg/mL (ultrasonic)

Smiles

N[C@@H](C[C@H]1N)[C@@]([C@@H]([C@H]1O)O[C@@](O[C@H](CO)[C@H]2O[C@@]([C@@H]([C@@H](O)[C@@H]3O)N)([H])O[C@H]3CN)([H])[C@@H]2O)([H])O[C@H]([C@@H]([C@@H](O)[C@@H]4O)N)O[C@@H]4CN

Molecular Formula

C23H46N6O13

Molecular Weight

614.64

Precautions

H317, H334

References & Citations

[1]N E Mikkelsen, et al. Inhibition of RNase P RNA Cleavage by Aminoglycosides. Proc Natl Acad Sci U S A. 1999 May 25;96 (11) :6155-60.|[2]Childs-Disney JL, et al. Small Molecule Targeting of a MicroRNA Associated with Hepatocellular Carcinoma. ACS Chem Biol. 2016 Feb 19;11 (2) :375-80.|[3]Stampfl S, et al. Monovalent ion dependence of neomycin B binding to an RNA aptamer characterized by spectroscopic methods. Chembiochem. 2007 Jul 9;8 (10) :1137-45.|[4]Hoch I, et al. Antibiotic inhibition of RNA catalysis: neomycin B binds to the catalytic core of the td group I intron displacing essential metal ions. J Mol Biol. 1998 Sep 25;282 (3) :557-69.

Shipping Conditions

Blue Ice

Storage Conditions

Solution, -20°C, 2 years

Scientific Category

Reference compound1

Clinical Information

Launched

Isoform

Aminoglycoside

Available Sizes

Frequently Asked Questions

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