Frost-Free

Bruce Phillips bap at MED.PITT.EDU
Wed Dec 21 13:10:01 EST 1994


	I have kept restriction endonucleases, quite a few in fact, in a
-20C frost-free freezer and they retained good activity for up to 6 years.
Included were SstI, KpnI, EcoR1, XbaI, etc.  The tubes were sealed well.
The high glycerol (and other?) cryoprotective reagents seem to work very
well for these reagents.



More information about the Virology mailing list