Synthesis of 19F nucleic acid–polymer conjugates as real-time MRI probes of biorecognition

Polymer–DNA conjugates in which one nucleic acid strand contains fluorine-substituted nucleobases have been prepared and characterised. The efficacy of these novel 19F nucleic acid–polymer conjugates as sensitive and selective in vitro reporters of DNA binding events is demonstrated through a number...

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Main Authors: Sicilia, Giovanna, Davis, Adrienne L., Spain, Sebastian G., Magnusson, Johannes P., Boase, Nathan R.B., Thurecht, Kristofer J., Alexander, Cameron
Format: Article
Published: Royal Society of Chemistry 2016
Online Access:https://eprints.nottingham.ac.uk/38823/
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author Sicilia, Giovanna
Davis, Adrienne L.
Spain, Sebastian G.
Magnusson, Johannes P.
Boase, Nathan R.B.
Thurecht, Kristofer J.
Alexander, Cameron
author_facet Sicilia, Giovanna
Davis, Adrienne L.
Spain, Sebastian G.
Magnusson, Johannes P.
Boase, Nathan R.B.
Thurecht, Kristofer J.
Alexander, Cameron
author_sort Sicilia, Giovanna
building Nottingham Research Data Repository
collection Online Access
description Polymer–DNA conjugates in which one nucleic acid strand contains fluorine-substituted nucleobases have been prepared and characterised. The efficacy of these novel 19F nucleic acid–polymer conjugates as sensitive and selective in vitro reporters of DNA binding events is demonstrated through a number of rapid-acquisition MR sequences. The conjugates respond readily and in a sequence specific manner to external target oligonucleotide sequences by changes in hybridisation. In turn, these structural changes in polymer–nucleotide conjugates translate into responses which are detectable in fluorine relaxation and diffusion switches, and which can be monitored by in vitro Spin Echo and DOSY NMR spectroscopy. Although complementary to conventional FRET methods, the excellent diagnostic properties of fluorine nuclei make this approach a versatile and sensitive probe of molecular structure and conformation in polymeric assemblies.
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spelling nottingham-388232020-05-04T17:29:54Z https://eprints.nottingham.ac.uk/38823/ Synthesis of 19F nucleic acid–polymer conjugates as real-time MRI probes of biorecognition Sicilia, Giovanna Davis, Adrienne L. Spain, Sebastian G. Magnusson, Johannes P. Boase, Nathan R.B. Thurecht, Kristofer J. Alexander, Cameron Polymer–DNA conjugates in which one nucleic acid strand contains fluorine-substituted nucleobases have been prepared and characterised. The efficacy of these novel 19F nucleic acid–polymer conjugates as sensitive and selective in vitro reporters of DNA binding events is demonstrated through a number of rapid-acquisition MR sequences. The conjugates respond readily and in a sequence specific manner to external target oligonucleotide sequences by changes in hybridisation. In turn, these structural changes in polymer–nucleotide conjugates translate into responses which are detectable in fluorine relaxation and diffusion switches, and which can be monitored by in vitro Spin Echo and DOSY NMR spectroscopy. Although complementary to conventional FRET methods, the excellent diagnostic properties of fluorine nuclei make this approach a versatile and sensitive probe of molecular structure and conformation in polymeric assemblies. Royal Society of Chemistry 2016-01-27 Article PeerReviewed Sicilia, Giovanna, Davis, Adrienne L., Spain, Sebastian G., Magnusson, Johannes P., Boase, Nathan R.B., Thurecht, Kristofer J. and Alexander, Cameron (2016) Synthesis of 19F nucleic acid–polymer conjugates as real-time MRI probes of biorecognition. Polymer Chemistry, 7 (12). pp. 2180-2191. ISSN 1759-9962 http://pubs.rsc.org/en/Content/ArticleLanding/2016/PY/C5PY01883H#!divAbstract doi:10.1039/C5PY01883H doi:10.1039/C5PY01883H
spellingShingle Sicilia, Giovanna
Davis, Adrienne L.
Spain, Sebastian G.
Magnusson, Johannes P.
Boase, Nathan R.B.
Thurecht, Kristofer J.
Alexander, Cameron
Synthesis of 19F nucleic acid–polymer conjugates as real-time MRI probes of biorecognition
title Synthesis of 19F nucleic acid–polymer conjugates as real-time MRI probes of biorecognition
title_full Synthesis of 19F nucleic acid–polymer conjugates as real-time MRI probes of biorecognition
title_fullStr Synthesis of 19F nucleic acid–polymer conjugates as real-time MRI probes of biorecognition
title_full_unstemmed Synthesis of 19F nucleic acid–polymer conjugates as real-time MRI probes of biorecognition
title_short Synthesis of 19F nucleic acid–polymer conjugates as real-time MRI probes of biorecognition
title_sort synthesis of 19f nucleic acid–polymer conjugates as real-time mri probes of biorecognition
url https://eprints.nottingham.ac.uk/38823/
https://eprints.nottingham.ac.uk/38823/
https://eprints.nottingham.ac.uk/38823/