Copper Interactions with DNA of Chromatin and Its Role in Neurodegenerative Disorders

Overview

Journal J Pharm Anal

Specialty Chemistry

Date 2018 Feb 7

PMID 29403839

Citations 10

Authors

M Govindaraju

H S Shekar

S B Sateesha

P Vasudeva Raju

K R Sambasiva Rao

K S J Rao

A J Rajamma

Affiliations

Soon will be listed here.

Abstract

In this study, we have demonstrated the conformational changes to DNA induced by abnormal interactions of copper using circular dichroism, in combination with UV-absorbance and fluorescence spectroscopy. Results confirm that binding of copper to bases of DNA in chromatin is concentration dependent. Binding efficiency of Cu ions to DNA is increased in proportion to the degree of unwinding of the double helix induced by denaturation. Altered B-DNA conformation will alter the integrity of DNA which may affect the normal process of DNA replication and transcription. Copper induced DNA damage in the brain may cause neurotoxicity and the neuronal cell death and is implicated in Alzheimer's disease and other neurological disorders.

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