Puromycin allows the selection of cells expressing the puromycin-N-acetyl-transferase (pac). The expression of pac gene confers puromycin resistance to transfected cells. Puromycin selection works for gram-positive bacteria and animal cells. Fungi and gram-negative bacteria are resistant due to low permeability of the antiboitic. Puromycin is an aminomucleoside antibiotic produced by Streptomyces alboniger. It is a powerful inhibitor of protein synthesis. It is a structural analog of the 3' end of animoacyl tRNA. When puromycin is added to an in vitro system containing all the necessary machinery for protein synthesis, protein synthesis stops and incomplete peptide chains are released from the ribosomes. Each such chain has puromycin covalently attached to one end.
Appearance: White to off white powder
Solubility: Colorless, clear, complete
Recommended Dilution:
1-10ug/ml
Moisture: (same/less than) 12%
Storage and Stability:
Store at -20C. Stable for 12 months.