High-Energy Long-Lived Mixed Frenkel-Charge-Transfer Excitons: From Double Stranded (AT)n to Natural DNA (419 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2016; 22(14): 4904-4914.
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Paper type: Journal Article,
Impact factor: 5.317, 5-year impact factor: 5.184
Url: https://www2.scopus.com/inward/record.uri?eid=2-s2.0-84961730181&partnerID=40&md5=22e242fce4f2130ecd20c2a49167a4f6
Keywords: Dna, Excitons, Fluorescence Spectroscopy, Hypochromism, Quantum Chemistry,
Affiliations:
*** IBB - CNR ***
LIDYL, CEA, CNRS, Université Paris Saclay, Gif-sur-Yvette, France
Institut für Physikalische und Theoretische Chemie, Goethe-Universität, Max-von-Laue-Str. 7, Frankfurt am Main, Germany
Department of Chemistry, Northwestern University, Evanston, IL, United States
Istituto Biostrutture e Bioimmagini-Consiglio, Nazionale Delle Ricerche, Via mezzocannone 16, Napoli, Italy
References:
Not available.
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2016; 22(14): 4904-4914.
Export to BibTeX Export to EndNote
Paper type: Journal Article,
Impact factor: 5.317, 5-year impact factor: 5.184
Url: https://www2.scopus.com/inward/record.uri?eid=2-s2.0-84961730181&partnerID=40&md5=22e242fce4f2130ecd20c2a49167a4f6
Keywords: Dna, Excitons, Fluorescence Spectroscopy, Hypochromism, Quantum Chemistry,
Affiliations:
*** IBB - CNR ***
LIDYL, CEA, CNRS, Université Paris Saclay, Gif-sur-Yvette, France
Institut für Physikalische und Theoretische Chemie, Goethe-Universität, Max-von-Laue-Str. 7, Frankfurt am Main, Germany
Department of Chemistry, Northwestern University, Evanston, IL, United States
Istituto Biostrutture e Bioimmagini-Consiglio, Nazionale Delle Ricerche, Via mezzocannone 16, Napoli, Italy
References:
Not available.
High-Energy Long-Lived Mixed Frenkel-Charge-Transfer Excitons: From Double Stranded (AT)n to Natural DNA
The electronic excited states populated upon absorption of UV photons by DNA are extensively studied in relation to the UV-induced damage to the genetic code. Here, we report a new unexpected relaxation pathway in adenine-thymine double-stranded structures (AT)n. Fluorescence measurements on (AT)n hairpins (six and ten base pairs) and duplexes (20 and 2000 base pairs) reveal the existence of an emission band peaking at approximately 320 nm and decaying on the nanosecond time scale. Time-dependent (TD)-DFT calculations, performed for two base pairs and exploring various relaxation pathways, allow the assignment of this emission band to excited states resulting from mixing between Frenkel excitons and adenine-to-thymine charge-transfer states. Emission from such high-energy long-lived mixed (HELM) states is in agreement with their fluorescence anisotropy (0.03), which is lower than that expected for π-π∗ states (≥0.1). An increase in the size of the system quenches π-π∗ fluorescence while enhancing HELM fluorescence. The latter process varies linearly with the hypochromism of the absorption spectra, both depending on the coupling between π-π∗ and charge-transfer states. Subsequently, we identify the common features between the HELM states of (AT)n structures with those reported previously for alternating (GC)n: High emission energy, low fluorescence anisotropy, nanosecond lifetimes, and sensitivity to conformational disorder. These features are also detected for calf thymus DNA in which HELM states could evolve toward reactive π-π∗ states, giving rise to delayed fluorescence. High-energy long-lived mixed (HELM) excitons are populated during excited-state relaxation in (AT)n duplexes. They result from mixing between Frenkel excitons and adenine-to-thymine charge-transfer states and extend over at least four bases on both strands. The properties of HELM states (high emission energy, low fluorescence anisotropy, nanosecond lifetime, and sensitivity to conformational disorder) are also detected for natural DNA. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
The electronic excited states populated upon absorption of UV photons by DNA are extensively studied in relation to the UV-induced damage to the genetic code. Here, we report a new unexpected relaxation pathway in adenine-thymine double-stranded structures (AT)n. Fluorescence measurements on (AT)n hairpins (six and ten base pairs) and duplexes (20 and 2000 base pairs) reveal the existence of an emission band peaking at approximately 320 nm and decaying on the nanosecond time scale. Time-dependent (TD)-DFT calculations, performed for two base pairs and exploring various relaxation pathways, allow the assignment of this emission band to excited states resulting from mixing between Frenkel excitons and adenine-to-thymine charge-transfer states. Emission from such high-energy long-lived mixed (HELM) states is in agreement with their fluorescence anisotropy (0.03), which is lower than that expected for π-π∗ states (≥0.1). An increase in the size of the system quenches π-π∗ fluorescence while enhancing HELM fluorescence. The latter process varies linearly with the hypochromism of the absorption spectra, both depending on the coupling between π-π∗ and charge-transfer states. Subsequently, we identify the common features between the HELM states of (AT)n structures with those reported previously for alternating (GC)n: High emission energy, low fluorescence anisotropy, nanosecond lifetimes, and sensitivity to conformational disorder. These features are also detected for calf thymus DNA in which HELM states could evolve toward reactive π-π∗ states, giving rise to delayed fluorescence. High-energy long-lived mixed (HELM) excitons are populated during excited-state relaxation in (AT)n duplexes. They result from mixing between Frenkel excitons and adenine-to-thymine charge-transfer states and extend over at least four bases on both strands. The properties of HELM states (high emission energy, low fluorescence anisotropy, nanosecond lifetime, and sensitivity to conformational disorder) are also detected for natural DNA. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
High-Energy Long-Lived Mixed Frenkel-Charge-Transfer Excitons: From Double Stranded (AT)n to Natural DNA
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High-Energy Long-Lived Mixed Frenkel-Charge-Transfer Excitons: From Double Stranded (AT)n to Natural DNA
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Impact Factor: 5.16
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Martinez-fernandez L, Pepino AJ, Segarra-marti J, Jovaisaite J, Vaya I, Nenov A, Markovitsi D, Gustavsson T, Banyasz A, Garavelli M, Improta R
* Photophysics of Deoxycytidine and 5-Methyldeoxycytidine in Solution: A Comprehensive Picture by Quantum Mechanical Calculations and Femtosecond Fluorescence Spectroscopy (323 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 0002-7863print), 2017 Jun 14; 139(23): 7780-7791.
Impact Factor: 14.357
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Pepino AJ, Segarra-marti J, Nenov A, Improta R, Garavelli M
* Resolving Ultrafast Photoinduced Deactivations in Water-Solvated Pyrimidine Nucleosides (387 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2017 Apr 20; 8(8): 1777-1783.
Impact Factor: 8.709
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Calce E, Monfregola L, Saviano M, De Luca S
* HER2-mediated anticancer drug delivery: strategies to prepare targeting ligands highly specific for the receptor (766 views)
Curr Med Chem (ISSN: 0929-8673, 1875-533x, 1875-533xelectronic), 2015 May 20; 22(21): 2525-2538.
Impact Factor: 3.455
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Nardon C, Boscutti G, Dalla Via L, Ringhieri P, Di Noto V, Morelli G, Accardo A, Fregona D
* CCK8 peptide-labeled Pluronic® F127 micelles as a targeted vehicle of gold-based anticancer chemotherapeutics (590 views)
Medchemcomm (ISSN: 2040-2503), 2015; 6(1): 155-163.
Impact Factor: 2.319
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Cohen SS, Riven I, Cortajarena AL, De Rosa L, D'Andrea LD, Regan L, Haran G
* Probing the molecular origin of native-state flexibility in repeat proteins (468 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 0002-7863print), 2015; 137(32): 10367-10373.
Impact Factor: 13.038
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Huix-Rotllant M, Brazard J, Improta R, Burghardt I, Markovitsi D
* Stabilization of mixed frenkel-charge transfer excitons extended across both strands of guanine-cytosine DNA duplexes (624 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2015; 6(12): 2247-2251.
Impact Factor: 8.539
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Changenet-Barret P, Gustavsson T, Improta R, Markovitsi D
* Ultrafast Excited-State Deactivation of 8-Hydroxy-2′-deoxyguanosine Studied by Femtosecond Fluorescence Spectroscopy and Quantum-Chemical Calculations (810 views)
J Phys Chem A (ISSN: 1089-5639, 1520-5215electronic, 1089-5639linking), 2015; 119(23): 6131-6139.
Impact Factor: 2.883
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Improta R, Ferrer FJ, Stendardo E, Santoro F
* Quantum-classical calculation of the absorption and emission spectral shapes of oligothiophenes at low and room temperature by first-principle calculations (418 views)
Chemphyschem (ISSN: 1439-4235, 1439-7641, 1439-4235linking), 2014 Oct 20; 15(15): 3320-3333.
Impact Factor: 3.419
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Chi M-C, Lo Y-H, Chen Y-Y, Lin L-L, Merlino A
* γ-Glutamyl transpeptidase architecture: Effect of extra sequence deletion on autoprocessing, structure and stability of the protein from Bacillus licheniformis (500 views)
Bba-Gen Subjects (ISSN: 0925-4439, 0006-3002, 1570-9639), 2014; 1844(12): 2290-2297.
Impact Factor: 4.882
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Cantisani M, Falanga A, Incoronato N, Russo L, De Simone A, Morelli G, Berisio R, Galdiero M, Galdiero S
* Conformational modifications of gB from herpes simplex virus type 1 analyzed by synthetic peptides (888 views)
J Med Chem (ISSN: 0022-2623, 1520-4804, 0022-2623print), 2013 Nov 14; 56(21): 8366-8376.
Impact Factor: 5.48
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Galdiero S, Falanga A, Cantisani M, Vitiello M, Morelli G, Galdiero M
* Peptide-Lipid Interactions: Experiments and Applications (1412 views)
Int J Mol Sc (ISSN: 1422-0067, 1661-6596, 1422-0067electronic), 2013 Sep; 14(9): 18758-18789.
Impact Factor: 2.339
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Satriano C, Sfrazzetto GT, Amato ME, Ballistreri FP, Copani A, Giuffrida ML, Grasso G, Pappalardo A, Rizzarelli E, Tomaselli GA, Toscano RM
* A ratiometric naphthalimide sensor for live cell imaging of copper(i) (591 views)
Chem Commun (ISSN: 1359-7345, 1364-548x, 1364-548xelectronic), 2013 Jun 21; 49(49): 5565-5567.
Impact Factor: 6.718
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Hunger K, Buschhaus L, Biemann L, Braun M, Kovalenko S, Improta R, Kleinermanns K
* UV-light-induced hydrogen transfer in guanosine-guanosine aggregates (613 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2013 Apr; 19(17): 5425-5431.
Impact Factor: 5.696
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Banyasz A, Gustavsson T, Onidas D, Changenet-Barret P, Markovitsi D, Improta R
* Multi-pathway excited state relaxation of adenine oligomers in aqueous solution: A joint theoretical and experimental study (537 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2013 Mar; 19(11): 3762-3774.
Impact Factor: 5.696
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Travaglia A, Satriano C, Giuffrida ML, La Mendola D, Rampazzo E, Prodi L, Rizzarelli E
* Electrostatically driven interaction of silica-supported lipid bilayer nanoplatforms and a nerve growth factor-mimicking peptide (443 views)
Soft Matter (ISSN: 1744-683x), 2013; 9(18): 4648-4654.
Impact Factor: 4.151
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Banyasz A, Douki T, Improta R, Gustavsson T, Onidas D, Vaya I, Perron M, Markovitsi D
* Electronic excited states responsible for dimer formation upon UV absorption directly by thymine strands: Joint experimental and theoretical study (438 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2012 Sep 12; 134(36): 14834-14845.
Impact Factor: 10.677
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Hua Y, Changenet-Barret P, Improta R, Vaya I, Gustavsson T, Kotlyar AB, Zikich D, Sket P, Plavec J, Markovitsi D
* Cation effect on the electronic excited states of guanine nanostructures studied by time-resolved fluorescence spectroscopy (483 views)
J Phys Chem C (ISSN: 1932-7447), 2012 Jul 12; 116(27): 14682-14689.
Impact Factor: 4.814
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Musumeci D, Oliviero G, Roviello GN, Bucci EM, Piccialli G
* G-quadruplex-forming oligonucleotide conjugated to magnetic nanoparticles: Synthesis, characterization, and enzymatic stability assays (1112 views)
Bioconjug Chem (ISSN: 1043-1802, 1520-4812, 1520-4812electronic), 2012 Mar 21; 23(3): 382-391.
Impact Factor: 4.58
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Merlino A, Vitiello G, Grimaldi M, Sica F, Busi E, Basosi R, D’Ursi A, Fragneto G, Paduano L, D’Errico G
* Destabilization of Lipid Membranes by a Peptide Derived from Glycoprotein gp36 of Feline Immunodeficiency Virus: A Combined Molecular Dynamics/Experimental Study (602 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2012 Jan 12; 116(1): 401-412.
Impact Factor: 3.607
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Banyasz A, Karpati S, Mercier Y, Reguero M, Gustavsson T, Markovitsi D, Improta R
* The peculiar spectral properties of amino-substituted uracils: A combined theoretical and experimental study (489 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2010 Oct 7; 114(39): 12708-12719.
Impact Factor: 3.603
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Gustavsson T, Improta R, Markovitsi D
DNA/RNA: Building blocks of life under UV irradiation (379 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2010 Jul 1; 1(13): 2025-2030.
Impact Factor: 6.687
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Tosco A, Monti MC, Fontanella B, Montefusco S, D'Andrea LD, Ziaco B, Baldantoni D, Rio MC, Marzullo L
* Copper binds the carboxy-terminus of trefoil protein 1 (TFF1), favoring its homodimerization and motogenic activity (2994 views)
Cell Mol Life Sci (ISSN: 1420-9071electronic, 1420-682xlinking), 2010 Jun; 67(11): 1943-1955.
Impact Factor: 7.047
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Improta R, Barone V, Lami A, Santoro F
* Quantum dynamics of the ultrafast ππ*/nπ* population transfer in uracil and 5-fluoro-uracil in water and acetonitrile (328 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2009 Oct 29; 113(43): 14491-14503.
Impact Factor: 3.471
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Accardo A, Tesauro D, Morisco A, Mangiapia G, Vaccaro M, Gianolio E, Heenan RK, Paduano L, Morelli G
* Micelles obtained by aggregation of gemini surfactants containing the CCK8 peptide and a gadolinium complex (539 views)
J Biol Inorg Chem (ISSN: 0949-8257, 1432-1327electronic, 0949-8257linking), 2009 May; 14(4): 587-599.
Impact Factor: 3.415
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Morisco A, Accardo A, Gianolio E, Tesauro D, Benedetti E, Morelli G
* Micelles derivatized with octreotide as potential target-selective contrast agents in MRI (552 views)
J Pept Sci (ISSN: 1075-2617, 1099-1387, 1075-2617print), 2009 Mar; 15(3): 242-250.
Impact Factor: 1.807
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Karunakaran V, Kleinermanns K, Improta R, Kovalenko SA
* Photoinduced dynamics of guanosine monophosphate in water from broad-band transient absorption spectroscopy and quantum-chemical calculations (383 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2009; 131(16): 5839-5850.
Impact Factor: 8.58
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Milardi D, Pappalardo M, Pannuzzo M, Grasso DM, Rosa CL
* The role of the Cys2-Cys7 disulfide bridge in the early steps of Islet amyloid polypeptide aggregation: A molecular dynamics study (489 views)
Chem Phys Lett (ISSN: 0009-2614), 2008 Oct 1; 463(4-6): 396-399.
Impact Factor: 2.169
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Accardo A, Tesauro D, Del Pozzo L, Mangiapia G, Paduano L, Morelli G
* Micelles by self-assembling peptide-conjugate amphiphile: Synthesis and structural characterization (511 views)
J Pept Sci (ISSN: 1075-2617, 1099-1387, 1075-2617print), 2008 Sep; 14(8): 903-910.
Impact Factor: 1.654
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Improta R, Berisio R, Vitagliano L
* Contribution of dipole-dipole interactions to the stability of the collagen triple helix (615 views)
Protein Sci (ISSN: 0961-8368, 1469-896xelectronic), 2008 May; 17(5): 955-961.
Impact Factor: 3.115
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Staiano M, Saviano M, Herman P, Grycznyski Z, Fini C, Varriale A, Parracino A, Kold AB, Rossi M, D'Auria S
* Time-resolved fluorescence spectroscopy and molecular dynamics simulations point out the effects of pressure on the stability and dynamics of the porcine odorant-binding protein (983 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2008; 89(4): 284-291.
Impact Factor: 2.823
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Chambery A, Pisante M, Di Maro A, Di Zazzo E, Ruvo M, Costantini S, Colonna G, Parente A
* Invariant Ser211 is involved in the catalysis of PD-L4, type I RIP from Phytolacca dioica leaves (407 views)
Proteins (ISSN: 0887-3585, 1097-0134, 1097-0134electronic), 2007 Apr 1; 67(1): 209-218.
Impact Factor: 3.354
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Ronga L, Langella E, Palladino P, Marasco D, Tizzano B, Saviano M, Pedone C, Improta R, Ruvo M
* Does Tetracycline Bind Helix 2 Of Prion? An Integrated Spectroscopical And Computational Study Of The Interaction Between The Antibiotic And Alpha Helix 2 Human Prion Protein Fragments (736 views)
Proteins (ISSN: 0887-3585, 1097-0134, 1097-0134electronic), 2007 Feb 15; 66(3): 707-715.
Impact Factor: 3.354
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Puglisi A, Purrello R, Rizzarelli E, Sortino S, Vecchio G
* Spectroscopic and self-association behavior of a porphyrin-β- cyclodextrin conjugate (447 views)
New J Chem (ISSN: 1144-0546), 2007; 31(8): 1499-1506.
Impact Factor: 2.651
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Gustavsson T, Sarkar N, Lazzarotto E, Markovitsi D, Barone V, Improta R
* Solvent effect on the singlet excited-state dynamics of 5-fluorouracil in acetonitrile as compared with water (365 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2006 Jul 6; 110(26): 12843-12847.
Impact Factor: 4.115
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De Luca S, Saviano M, Lassiani L, Yannakopoulou K, Stefanidou P, Aloj L, Morelli G, Varnavas A
* Anthranilic acid based CCK1 receptor antagonists and CCK-8 have a common step in their "receptor desmodynamic processes" (505 views)
J Med Chem (ISSN: 0022-2623, 1520-4804, 0022-2623print), 2006 Apr 20; 49(8): 2456-2462.
Impact Factor: 5.115
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De Luca S, Sanseverino M, Zocchi I, Pedone C, Morelli G, Ragone R
* Receptor fragment approach to the binding between CCK8 peptide and cholecystokinin receptors: A fluorescence study on type B receptor fragment CCKB-R (352-379) (516 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2005 Mar; 77(4): 205-211.
Impact Factor: 2.545
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Improta R, Barone V
* Absorption and fluorescence spectra of uracil in the gas phase and in aqueous solution: A TD-DFT quantum mechanical study (433 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2004 Nov 10; 126(44): 14320-14321.
Impact Factor: 6.903
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Berisio R, Granata V, Vitagliano L, Zagari A
* Imino acids and collagen triple helix stability: Characterization of collagen-like polypeptides containing Hyp-Hyp-Gly sequence repeats (590 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2004 Sep 22; 126(37): 11402-11403.
Impact Factor: 6.903
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De Luca S, Ragone R, Bracco C, Digilio G, Aloj L, Tesauro D, Saviano M, Pedone C, Morelli G
* A cyclic CCK8 analogue selective for the cholecystokinin type A receptor: design, synthesis, NMR structure and binding measurements (530 views)
Chembiochem (ISSN: 1439-7633, 1439-4227, 1439-7633electronic), 2003 Nov 7; 4(11): 1176-1187.
Impact Factor: 3.992
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De Luca S, Ragone R, Bracco C, Digilio G, Tesauro D, Saviano M, Pedone C, Morelli G
* The role of segment 32-47 of cholecystokinin receptor type A in CCK8 binding: Synthesis, nuclear magnetic resonance, circular dichroism and fluorescence studies (400 views)
J Pept Sci (ISSN: 1075-2617, 1099-1387, 1075-2617print), 2003 Mar; 9(3): 156-169.
Impact Factor: 1.377
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Ragone R, De Luca S, Tesauro D, Pedone C, Morelli G
Fluorescence studies on the binding between 1-47 fragment of cholecystokinin receptor CCKA-R(1-47) and nonsulfated cholecystokinin octapeptide CCK8 (488 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2000; 56(1): 47-53.
Impact Factor: 2.405
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Gallo P, Saviano M, Rossi F, Pavone V, Pedone C, Ragone R, Stiuso P, Colonna G
SPECIFIC INTERACTION BETWEEN CYCLOPHILIN AND CYCLIC-PEPTIDES (527 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1995 Sep; 36(3): 273-281.
Impact Factor: 2.425
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47 Records (47 excluding Abstracts).
Total impact factor: 223.988 (223.988 excluding Abstracts).
Total 5 year impact factor: 226.242 (226.242 excluding Abstracts).
Total impact factor: 223.988 (223.988 excluding Abstracts).
Total 5 year impact factor: 226.242 (226.242 excluding Abstracts).
419 views. Last view on Saturday 12 October 2024, 2:58:00
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