Quarfloxin (CX-3543), a fluoroquinolone derivative with antineoplastic activity, targets and inhibits RNA pol I activity, with IC 50 values in the nanomolar range in neuroblastoma cells. Quarfloxin disrupts the interaction between the nucleolin protein and a G-quadruplex DNA structure in the ribosomal DNA (rDNA) template
In Vitro
Quarfloxin (CX-3543) effectively inhibits the growth of neuroblastoma cells in vitro. MNA (or high c-Myc) and wt-TP53 cell lines are found to be more sensitive to Quarfloxin. Quarfloxin and induces DNA damage, p53 signaling, cell death, and cell cycle arrest in neuroblastoma cell lines. Solution in vitro : Quarfloxin is suspended in DMSO to a stock of 10 mM. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
DMSO : 5 mg/mL (8.27 mM; ultrasonic and adjust pH to 3 with HCl) DMSO : 1 mg/mL (1.65 mM; ultrasonic and warming and heat to 60°C) H2O : 1 mg/mL (1.65 mM; ultrasonic and adjust pH to 5 with 0.1 M HCL)
分子量
604.700 g/mol
XLogP3
5.100
氢键供体数Hydrogen Bond Donor Count
1
氢键受体数Hydrogen Bond Acceptor Count
9
可旋转键计数Rotatable Bond Count
6
精确质量Exact Mass
604.26 Da
单同位素质量Monoisotopic Mass
604.26 Da
拓扑极表面积Topological Polar Surface Area
90.900 Ų
重原子数Heavy Atom Count
45
形式电荷Formal Charge
0
复杂度Complexity
1150.000
同位素原子数Isotope Atom Count
0
定义的原子立体中心计数Defined Atom Stereocenter Count
1
未定义的原子立体中心计数Undefined Atom Stereocenter Count
1
定义的键立体中心计数Defined Bond Stereocenter Count
0
未定义的键立体中心计数Undefined Bond Stereocenter Count
0
所有立体化学键的总数The total count of all stereochemical bonds