Length and sequence effect on the B-Z transition of [d(A-T)n]2 oligonucleotide induced by a cationic porphyrin

Jong Heon Shin,Yoon Mo Hwang,Yoon Jung Jang,Seog K Kim

doi:10.1016/j.bpc.2016.06.007

Length and sequence effect on the B-Z transition of [d(A-T)n]2 oligonucleotide induced by a cationic porphyrin

Jong Heon Shin, Yoon Mo Hwang + Show 2 more

https://doi.org/10.1016/j.bpc.2016.06.007

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Journal: Biophysical Chemistry	Publication Date: Sep 28, 2016
Citations: 4

Affiliation: Yeungnam University

#Cationic Porphyrin #Stacking Of Porphyrin #GC Base Pairs #Extensive Stacking #GC Base #CD Spectrum #Base Pairs

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trans-BMPyP induced the B-Z transition for alternated AT oligonucleotides as it was evident by inversed CD spectrum. The transition occurred simultaneously with appearance of the extensive stacking of porphyrin. Complete B-Z transition required at least 14 base-pairs long. Insertion of one or two GC base pairs prevented the B-Z transition.

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Length and sequence effect on the B-Z transition of [d(A-T)n]2 oligonucleotide induced by a cationic porphyrin