DNA with Parallel Strand Orientation: A Nanometer Distance Study with Spin Labels in the Watson-Crick and the Reverse Watson-Crick Double Helix
DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Wunnicke, Dorith | |
dc.contributor.author | Ding, Ping | |
dc.contributor.author | Yang, Haozhe | |
dc.contributor.author | Seela, Frank | |
dc.contributor.author | Steinhoff, Heinz-Juergen | |
dc.date.accessioned | 2021-12-23T16:05:47Z | - |
dc.date.available | 2021-12-23T16:05:47Z | - |
dc.date.issued | 2015 | |
dc.identifier.issn | 15206106 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/7205 | - |
dc.description.abstract | Parallel-stranded (ps) DNA characterized by its sugar phosphate backbones pointing in the same direction represents an alternative pairing system to antiparallel-stranded (aps) DNA with the potential to inhibit transcription and translation. 25-mer oligonucleotides were selected containing only dA.dT base pairs to compare spin-labeled nucleobase distances over a range of 10 or 15 base pairs in ps DNA with those in aps DNA. By means of the copper(I)-catalyzed Huisgen-Meldal-Sharpless alkyne-azide cycloaddition, the spin label 4-azido-2,2,6,6-tetramethylpiperidine-1-oxyl was clicked to 7-ethynyl-7-deaza-2'-deoxyadenosine or 5-ethynyl-2'-deoxyuridine to yield 25-mer oligonucleotides incorporating two spin labels. The interspin distances between spin labeled residues were determined by pulse EPR spectroscopy. The results reveal that in ps DNA these distances are between 5 and 10% longer than in aps DNA when the labeled DNA segment is located near the center of the double helix. The interspin distance in ps DNA becomes shorter compared with aps DNA when one of the spin labels occupies a position near the end of the double helix. | |
dc.description.sponsorship | DFGGerman Research Foundation (DFG)European Commission [STE640/12]; The research of the manuscript was supported by a grant of the DFG to H.-J.S., STE640/12. | |
dc.language.iso | en | |
dc.publisher | AMER CHEMICAL SOC | |
dc.relation.ispartof | JOURNAL OF PHYSICAL CHEMISTRY B | |
dc.subject | CHAIN ORIENTATION | |
dc.subject | Chemistry | |
dc.subject | Chemistry, Physical | |
dc.subject | DUPLEX DNA | |
dc.subject | EPR SPECTROSCOPY | |
dc.subject | FORCE-FIELD | |
dc.subject | NMR STRUCTURE | |
dc.subject | NUCLEIC-ACIDS | |
dc.subject | OLIGONUCLEOTIDE DUPLEXES | |
dc.subject | SEQUENCE | |
dc.subject | TRANSITION | |
dc.subject | TRIPLEX DNA | |
dc.title | DNA with Parallel Strand Orientation: A Nanometer Distance Study with Spin Labels in the Watson-Crick and the Reverse Watson-Crick Double Helix | |
dc.type | journal article | |
dc.identifier.doi | 10.1021/acs.jpcb.5b02935 | |
dc.identifier.isi | ISI:000363994000015 | |
dc.description.volume | 119 | |
dc.description.issue | 43 | |
dc.description.startpage | 13593 | |
dc.description.endpage | 13599 | |
dc.contributor.orcid | 0000-0002-5888-0157 | |
dc.contributor.orcid | 0000-0002-5016-4041 | |
dc.contributor.researcherid | H-3791-2014 | |
dc.publisher.place | 1155 16TH ST, NW, WASHINGTON, DC 20036 USA | |
dcterms.isPartOf.abbreviation | J. Phys. Chem. B | |
crisitem.author.dept | FB 04 - Physik | - |
crisitem.author.deptid | fb04 | - |
crisitem.author.parentorg | Universität Osnabrück | - |
crisitem.author.netid | StHe633 | - |
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