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Interactions of a Tetraanionic Porphyrin with DNA: from a Z-DNA Sensor to a Versatile Supramolecular Device

Alessandro D’Urso, Angela Mammana, Milan Balaz, Andrea E Holmes, Nina Berova, Rosaria Lauceri, and Roberto Purrello

J Am Chem Soc 131(6):2046-2047 (2009) PMID 19159291

The anionic nickel(II) porphyrin NiTPPS is able to selectively sense the spermine induced left-handed Z-form of DNA while it is completely silent in the presence of right-handed B-DNA. Interactions between the DNA and the porphyrin can be easily modulated by pH and temperature. The resulting Z-DNA-porphyrin-spermine complex behaves as a supramolecular reversible information storage system and as a reversible AND logic gate.

DOI: 10.1021/ja808099u
Version: za2963e q8za6 q8zba q8zc9 q8zdc q8ze3 q8zf3 q8zg2
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