Expression of stable antisense mRNA ?

Doug Pecota pecota at
Wed Nov 19 16:50:19 EST 1997

You might try the following article:
Phenotypic conversion of drug-resistant bacteria to drug sensitivity
Proc. Natl. Acad Sci. USA, Vol. 94:8468-8472, Aug 1997

They talk about using  antisense RNA to suppress antibiotic resistance.

Making a stable antisense RNA may not be possible.  Making the antisense
RNA stable will likely decrease its ability to bind to the target mRNA. 
(Single stranded RNA is more readily degraded by cellular RNases and
required for effective binding to the sense RNA.)

Hope this helps.
Doug Pecota
University of California Irvine
pecota at

It isn't just what you know,
nor even who you know, 
but also what you know
that isn't so.

On Wed, 19 Nov 1997, Samuel C. Blackman wrote:

> My advisor and I are trying to figure out a way to knock out the
> expression of a particular gene in a cell line without resorting to making
> knockout mice or dominant negative mutants.  We were wondering if anyone
> has had success in stably expressing a construct that would generate an
> antisense mRNA against a particular gene, thus knocking it out, or at
> least severely reducing its expression.
> If anyone could give us some pointers, or perhaps some references, we'd
> greatly appreciate it.
> Thanks!
> Samuel C. Blackman        ! InterNet : blackman at
> MD/PhD Student (5/8)      ! Disclaimer: I speak for me, not UIC!
> Univ. of Ill. at Chicago  ! Quote : "Quandro potro io finir di stupire?"
> Dept. of Pharmacology     ! Phone : 312/996-4983 (lab)  Fax: 312/996-1225
> Check out my web page!    !

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