DNA is NOT a helix

Jim Hu jimhu at tamu.edu
Wed Feb 16 20:04:00 EST 2000

biegel at concentric.net wrote:

> I am new to user groups, and I hope therefore that this message reaches
> someone who is interested.  I seek a brave person with a DNA laboratory.
> I can prove that Form I DNA (i.e., "CCC" or covalently closed circular,
> duplex DNA) from native sources is generally NON-helical.
> Actually, this has been proven twice before, therefore I should say rather
> that I can prove DEFINITIVELY that native circular DNA is NOT, topologically
> speaking, a helix.

.<snipped>....Why do I get the feeling that this is going to hinge on whatever
the strict topological definition of a helix is?

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