Patent ID: 7927870

Claim:
A plasmid DNA formulation which comprises: a) purified plasmid DNA whereby metal ions have been optionally removed; b) EDTA present at a concentration from 1 μM to 5 mM; c) ethanol at a volume to volume concentration from 1% to 3%; d) a physiologically acceptable buffer selected from the group consisting of Tris-HCl, glycine, sodium phosphate, potassium phosphate, lithium phosphate, sodium succinate, potassium succinate, lithium succinate, sodium malate, potassium malate, lithium malate, sodium bicarbonate, potassium bicarbonate, lithium bicarbonate and combinations thereof; and, e) a salt selected from the group consisting of NaCl, KCl, LiCl and combinations thereof at a concentration up to 300 mM.