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| Science Forum Index » Physics Forum » A Knotty DNA Problem |
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| Author |
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| Sam Wormley |
 Posted: Thu Jan 01, 2004 4:41 pm |
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Ref: http://focus.aps.org/story/v12/st25
Phys. Rev. Lett. 91 265506 (to be published)
Inside every nucleus of every cell
in the body there's a knotty
secret--the DNA is constantly
getting tangled up. In the
31 December PRL, a team
describes tying knots in a strand
of DNA and tracing the knots'
movements along the strand.
They found that the DNA slid
smoothly through the knots,
which allowed the knots to move
without friction. The results could
help researchers better
understand the enzymes that
untangle DNA and that might be
targets for cancer drugs.
See: http://focus.aps.org/story/v12/st25 |
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