Balaz Milan, Li Benjamin C, Steinkruger Jay D, Ellestad George A, Nakanishi Koji, Berova Nina
Columbia University, Department of Chemistry, 3000 Broadway, New York, New York 10027, USA.
Org Biomol Chem. 2006 May 21;4(10):1865-7. doi: 10.1039/b603409h. Epub 2006 Apr 21.
The porphyrin chromophore incorporated at the 5'-position of an oligonucleotide allows the simultaneous detection of the B- to Z-DNA transition via the porphyrin Soret band circular dichroism exciton couplet signal around 420 nm and the oligonucleotide CD region below 300 nm, at micromolar concentrations.
掺入寡核苷酸5'-位的卟啉发色团能够通过420nm左右的卟啉Soret带圆二色性激子偶合信号以及低于300nm的寡核苷酸圆二色性区域,在微摩尔浓度下同时检测B型到Z型DNA的转变。