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The Effects Of Hg2+ On Secondary Structures Formed By T-Rich Dna, Zachary Boynton Jan 2015

The Effects Of Hg2+ On Secondary Structures Formed By T-Rich Dna, Zachary Boynton

Honors Theses

Single stranded DNA that forms secondary structures has been a popular area of research in recent years. Much research has also been done in the field of heavy metals binding to DNA. Recently, it has been discovered that mercury in the presence of thymines will form T-HgII-T bonds. It is our hypothesis that single stranded DNA rich in thymine residues will form into a structure similar to i-motifs, formed from C-rich single strands, in the presence of mercury. Based on spectral changes during a mercuric titration, it is evident that mercury induces a structural change in T-rich DNA. We then …