double stranded to look for it?

Dr. Peter Gegenheimer PGegen at
Fri Jun 2 22:48:07 EST 2000

On Mon, 29 May 2000 11:41:04, Juergen Oberstrass <oberstra at>

ð > could anyone of you help me with hints how to work with dsRNA without
ð > having sequence data? Can it be isolated ? Manipulated?

Isolation is the easiest thing in the world, but getting large amounts is one
of the hardest. There is a lot of older literature on *viroid RNA replication
intermediates* which will get you started. Also, there are naturally-occurring
dsRNAs in many fungi. (When you do a leterature search for d-s RNA, exclude
anti-sense, etc.) The main properties are (1) resistance to nuclease
digestion; (2) I think ds can be separated from ss on cellulose columns in 20%
EtOH. (a "Franklin" column.)

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