Binding Isotherms and Cooperative Effects for Metal-DNA Complexes

Details Binding Isotherms and Cooperative Effects for Metal-DNA Complexes Binding Isotherms and Cooperative Effects for Metal-DNA Complexes

2008-06-20

arxiv.org/abs/0806.3368v1

Physics

Chemical Physics

13 pages, 0 figures

Scientific paper

The stoichiometric binding constants of Nickel(II), Cobalt(II), Manganese(II), Silver(I), Zinc(II) ions with DNA, from Spirulina platensis were determined from their binding isotherms by equilibrium dialysis and atomic absorption spectroscopy. It was shown, that the nature of these ions interaction with DNA, from S .platensis is different. For Cobalt(II), Zinc(II) ions were observed cooperative effects and existence of two different types of the binding sites. Nickel(II)_, Silver(I) -DNA complexes shows independent and identical binding sites and Manganese(II)_ negative cooperative interaction. The logarithm of binding constants for Cobalt (II)_, Nickel (II)_, Manganese (II)_, Zinc (II)_, Silver (I) - DNA, from S. platensis in 3 mM Na(I) are 5.11; 5.18; 4.77; 5.05; 5.42; respectively. The linear correlation of logarithm of binding constants (for complexes of metal-DNA from S. platensis) and the covalent index of Pauling are observed.

Affiliated with

Also associated with

No associations

Rating

Binding Isotherms and Cooperative Effects for Metal-DNA Complexes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Binding Isotherms and Cooperative Effects for Metal-DNA Complexes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Binding Isotherms and Cooperative Effects for Metal-DNA Complexes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-371248