Amphotericin B solubilized from Streptomyces sp

可溶性兩性黴素B

CAS Number: 1397-89-3  C47H73NO17  MW 924.08

● Storage：2-8°C

● Specification：

Form…………………….fine, light yellow, lyophylized powder

Stock solution………… 2.5mg/ml(以有效含量計算(suàn)) in H2O

● Product description：

Amphotericin B is a polyene antifungal antibiotic from Streptomyces sp. It has a high affinity for sterols, primarily ergosterols, of fungal and bacterial cell membranes. After binding to sterols, it forms channels in the membranes, causing small molecules to leak out. Amphotericin B is effective against fungi and yeast. Normal usage for maintenance of cell cultures is 2.5 mg/l with penicillin and streptomycin in the medium. For cultures already contaminated with yeast and fungus, it is recommended to use this product at 2-4 times the normal level (5-10 mg/l), without penicillin and streptomycin for 2-3 subcultures. Once the infection is under control, normal maintenance levels of amphotericin B should be used. Amphotericin B is not soluble in H2O but in DMSO. Amphotericin B solubilized is a colloidal suspension of Amphotericin B, using sodium deoxycholate as the solubilizing agent. The product is approximately 45% amphotericin B, 35% sodium deoxycholate; the balance being sodium phosphate and sodium chloride.

● Preparation instructions:

Amphotericin B solubilized is reconstituted at the water in a 2.5 mg/ml stock solution. The solution must be filtered to sterilize by 0.22μm membrane.

● Storage/Stability:

The lyophylized powder amphotericin B solubilized can be stable for 5 years under -20℃ protected from air and light. Stock solutions at 2-8 °C are stable for up to 1 month.

● Reference:

1. Bolard, J., Biochim. Biophys. Acta, 864: 257-304 (1986).

2. Venegas, B., et al., Biophys. J., 85, 2323-32 (2003).

3. Vertut-Doi, A., et al., Biochem. Biophys. Res. Commun., 157, 692-97 (1988).

4. Sau K., et al., J. Biol. Chem., 278, 37561-68 (2003).

5. Perlman, D., Methods Enzymol., 58, 110-16 (1979).