G 418 Sulfate Salt

Aminoglycoside antibiotic related to gentamycin that inhibits prokaryotic and eukaryotic protein synthesis, is toxic to bacteria, yeast, protozoans, helminths, higher plant and mammalian cells. Used in molecular genetics as a selective agent for the bacterial neo^r/kan^r genes. The product of these genes, aminoglycoside 3′-phosphotransferase, inactivates G418, neomycin, and kanamycin by phosphorylation. Introduction of either of these genes into cells can confer resistance to G418, which enables cells to grow in media containing G418.

Aminoglycoside related to gentamycin that inhibits prokaryotic and eukaryotic protein synthesis. Toxic to bacteria, yeast, protozoans, helminths, higher plant, and mammalian cells. Widely used in the selection of eukaryotic expression vectors carrying the bacterial neo^r/kan^r genes. The product of these genes, aminoglycoside 3′-phosphotransferase, inactivates G418, neomycin, and kanamycin by phosphorylation. Introduction of either of these genes into cells can confer resistance to G418, which enables cells to grow in media containing G418.

Assay: ≥730 µg/mg

Solubilization in H₂O at 100 mg/ml yields a clear, colorless solution.

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Toxicity: Standard Handling (A)