Duplex stabilization and energy transfer in zipper porphyrin-DNA.
Zip it up: Attachment of porphyrins onto complementary DNA strands leads to zipper-porphyrin arrays and, in the presence of eleven modifications, an increase in the melting temperature of the duplex. Mixed zinc and free-base porphyrin arrays undergo energy transfer from the zinc porphyrin to the free-base porphyrin in the annealed duplex but not in the denatured form (see scheme), giving access to reversible formation of potential photonic wires.
Nguyen
ThaoNguyen
T
School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, UK.
Brewer
Ashley
A
Stulz
Eugen
E
D001483:Base Sequence; D002942:Circular Dichroism; D004247:DNA / Q000737:chemistry*; D004735:Energy Transfer; D009690:Nucleic Acid Conformation; D044367:Phase Transition; D011166:Porphyrins / Q000737:chemistry*; D013696:Temperature; D015032:Zinc / Q000737:chemistry
D011166:Porphyrins; D004247:DNA; D015032:Zinc