https://ww2.chemistry.gatech.edu/~lw26/bPublications/LDW_45.pdf
by L McFail-lsom - 1999 - Cited by 190 - Related articles
cations selectively partition into the minor groove of AT-tracts in DNA. ..... attachment of cations or anions to DNA. Only force vectors between nearest neighbors.
Charge Migration in DNA: Perspectives from Physics, ...
https://books.google.com/books?isbn=354072494X
Tapash Chakraborty - 2007 - Science
The ionizations result in DNA anion and cation radicals as well as excitations [1]. However, the LEEs can also directly damage DNA causing sugar-phosphate ...
Is DNA an anion, cation, or neutral?
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Best Answer: Histones carry a slight positive charge, and DNA carries a slight negative charge. Since opposite charges attract, the DNA is pulled in toward the histones. A nucleosome is a segment of the DNA wrapped around a core of histones.
Source(s): http://www.biology.arizona.edu/molecular...
Chez · 9 years ago
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DNA is not any of these. Anions and cations refer to ions, which are charged groups of atoms, not molecules. DNA is made up of both cations and anions.
However, DNA is also not neutral, because it has a slight negative charge.
1st person is WRONG!!!!!!!!!!!!!!!!!!
DNA, despite the popular belief of being neutral, is NEGATIVE (anion)! we're talking about a nucleic acid, which is has an acidic pH.
otherwise, our complete studies of the HGP and DNA sequencing wouldnt be possible, since electrophesis (sp) wouldn't be possible.
in simple terms- we wouldn't know where are genes were located if DNA was neutral.Source(s): college biology student
Introduction
I;eu would argue against the importance of electrostatic
intemctions in IIN. bending. twisting. groove-width variation,
deformation and condensation. and in RN.4 folding
and catalysis. A central role for electrostatics in bending
mechanisms is indicated by the effects of salt on the bending
of i2’krdcts [ I-.i] and (;(.-tracts [d-h]. ‘I’et, the analysis
of high-resolution I)NA structures. originating with
‘(Ldladine’s rules’ [7], has focused primarily on direct
base-base interactions, implicitly discounting contributions
from electrostatics. ‘I’hc limitations on electrosttitic
analysis are partially technic;ll; one simply cannot obtain
much information about shielding, counterion positions or
electrostatic forces. ‘l‘hese limitations provide a partial
explanation for the dutabilit! of the base-base paradigm
[H’], in spite of its obvious dcficiencics. Some cutrcnt difficulties
in the treatment of electrostatic interactions in
nucleic acids have been discussed by Feig and Pcttitt [CI],
Here, we review recent proposals of unanticipated roles for
cations in the control and perturbation of B-DNA structures.
Space limitations prohibit the review of exciting new
developments in the realm of the cation control of cluadruplex
structure (for example. s(‘c [ 101).