RNase Zap (Invitrogen) and RNase Away (Molecular Bioproducts)
Dr. Hiranya S. Roychowdhury
(by hroychow from nmsu.edu)
Tue Feb 17 18:58:29 EST 2009
You guys have summarized the paranoia well. However, in my experience,
baking the glasswares always worked rather well. Of course, whoever pours
LiqN2 on the Mortar/pestle straight out of the oven has a problem far more
serious than RNase in the prep. ;)
> On Feb 16, 2009, at 6:16 PM, DK wrote:
>> In article <mailman.225.1234807625.13724.methods from net.bio.net>, Igor
>> Sagdeev <sagdeev from gmail.com> wrote:
>>> Can anyone comment of the difference(s) between these products:
>>> RNase Zap (Invitrogen)
>>> RNase Away (Molecular Bioproducts)?
>> MSDS for both products makes it reasonably obvious that RNAse Away
>> is simply a sodium hydroxide at unspecified concentration and RNase
>> Zap is simply an SDS at unknown concentration.
>> Take your pick. I'd contend that with already clean glassware that was
>> not handled by bare hands neither is necessary. The "RNAses are so
>> everywhere that the only way to get rid of them is to treat everything
>> with some magic expensive solutions" is basically a myth.
> The more one works with RNA, the one more realizes that DK's point is
> My favorite example of the extreme paranoia of RNases was a lab I
> knew of that baked the mortars and pestles they used to grind tissue
> for RNA preps! So there might be a little RNase on those: far more
> will be liberated when the tissue gets ground! They did go through a
> lot of mortars since these tended to break when cooling too fast out
> of the oven.
> As for magic solutions, I personally use dilute bleach when I feel
> some treatment is called for. Ambion's web site even says this is an
> alternative to their solution.
> Another hint is that usually there is no special need to treat water
> with DEPC. My experience is that 18 megaohm water from a milliQ
> system is essentially RNase free.
> Michael L. Sullivan
> Plant Research Molecular Geneticist
> US Dairy Forage Research Center
> 1925 Linden Drive West
> Madison, WI 53706
> (608) 890-0046 (Phone)
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Hiranya S. Roychowdhury, Ph.D.
Health & Public Services
Dona Ana Community College
New Mexico State University
Las Cruces, NM 88003
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