June 7 1990
The remainder of the lysate can be stored at 4 degrees C (for at least 1 week) until needed for the DNA prep protocol.
Helms C. Dutchik J.E. and M.V. Olson. (1987). "A lambda DNA protocol based on purification of phage on DEAE cellulose". In: Meth. Enzymol. 153: p 69-82. Eds.: R. Wu L. Grossman. Academic Press.