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Li L, Chen Z. Electrochemical aptamer biosensor for DNA detection based on label-free aptamers. Bioelectrochemistry 2023; 153:108494. [PMID: 37379739 DOI: 10.1016/j.bioelechem.2023.108494] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/18/2023] [Accepted: 06/21/2023] [Indexed: 06/30/2023]
Abstract
Electrochemical aptasensor has been broadly advanced for nucleic acid detection. However, it is a long-term goal to design an aptasensor with high specificity, flexibility, and simplicity. In this work, we develop a strategy of triblock DNA probe, which consists of two DNA probes at both ends and ployA fragments in the middle as probe-polyA-probe. PolyA fragment has high affinity to the surface of gold electrode, so it can be assembled on the electrode surface via polyA instead of traditional Au-S bonds. When the target DNA is simultaneously hybridized with the two capture probes, the hybridization stability can be improved due to the strong base stacking effect. [Ru(NH3)6]3+, as signal probe, can be electrostatically adsorbed on the negatively charged DNA skeleton. A wide linear range (10 pM-10 μM) is obtained with a detection limit of 2.9 pM. Our electrochemical aptasensor has good repeatability, stability, and specificity. More importantly, the electrochemical sensor can successfully detect DNA in human serum samples, which proves its practical value and extensive applicability in complex environment.
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Affiliation(s)
- Li Li
- School of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, China.
| | - Zhengbo Chen
- Department of Chemistry, Capital Normal University, Beijing 100048, China
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2
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Jiang J, Wu H, Su Y, Liang Y, Shu B, Zhang C. Electrochemical Cloth-Based DNA Sensors (ECDSs): A New Class of Electrochemical Gene Sensors. Anal Chem 2020; 92:7708-7716. [DOI: 10.1021/acs.analchem.0c00669] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jun Jiang
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, South China Normal University, Guangzhou 510631, China
- College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Hongyang Wu
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, South China Normal University, Guangzhou 510631, China
- College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Yan Su
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, South China Normal University, Guangzhou 510631, China
- College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Yi Liang
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, South China Normal University, Guangzhou 510631, China
- College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Bowen Shu
- Department of Laboratory Medicine, Guangzhou First People’s Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
| | - Chunsun Zhang
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, South China Normal University, Guangzhou 510631, China
- College of Biophotonics, South China Normal University, Guangzhou 510631, China
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3
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Xiao M, Lai W, Man T, Chang B, Li L, Chandrasekaran AR, Pei H. Rationally Engineered Nucleic Acid Architectures for Biosensing Applications. Chem Rev 2019; 119:11631-11717. [DOI: 10.1021/acs.chemrev.9b00121] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mingshu Xiao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P. R. China
| | - Wei Lai
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P. R. China
| | - Tiantian Man
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P. R. China
| | - Binbin Chang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P. R. China
| | - Li Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P. R. China
| | - Arun Richard Chandrasekaran
- The RNA Institute, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Hao Pei
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P. R. China
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Skoblov AY, Vichuzhanin MV, Farzan VM, Veselova OA, Konovalova TA, Podkolzin AT, Shipulin GA, Zatsepin TS. Solid- and solution-phase synthesis and application of R6G dual-labeled oligonucleotide probes. Bioorg Med Chem 2015; 23:6749-56. [DOI: 10.1016/j.bmc.2015.08.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 08/17/2015] [Accepted: 08/28/2015] [Indexed: 12/25/2022]
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5
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Shi J, Tian F, Lyu J, Yang M. Nanoparticle based fluorescence resonance energy transfer (FRET) for biosensing applications. J Mater Chem B 2015; 3:6989-7005. [DOI: 10.1039/c5tb00885a] [Citation(s) in RCA: 171] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nanoparticle based FRET assays have higher energy transfer efficiency and better performance compared with traditional organic fluorophore based FRET assays.
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Affiliation(s)
- Jingyu Shi
- Interdisciplinary Division of Biomedical Engineering
- the Hong Kong Polytechnic University
- Kowloon
- P. R. China
| | - Feng Tian
- Interdisciplinary Division of Biomedical Engineering
- the Hong Kong Polytechnic University
- Kowloon
- P. R. China
| | - Jing Lyu
- Interdisciplinary Division of Biomedical Engineering
- the Hong Kong Polytechnic University
- Kowloon
- P. R. China
| | - Mo Yang
- Interdisciplinary Division of Biomedical Engineering
- the Hong Kong Polytechnic University
- Kowloon
- P. R. China
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6
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Stryer L. Celebrating the Scientific Life of Richard A. Mathies. J Phys Chem B 2012; 116:10409-10. [DOI: 10.1021/jp306719z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Savarese M, Aliberti A, De Santo I, Battista E, Causa F, Netti PA, Rega N. Fluorescence Lifetimes and Quantum Yields of Rhodamine Derivatives: New Insights from Theory and Experiment. J Phys Chem A 2012; 116:7491-7. [DOI: 10.1021/jp3021485] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marika Savarese
- Dipartimento di
Scienze Chimiche, Università di Napoli ‘Federico II’, Complesso Universitario
di M.S.Angelo, via Cintia, I-80126 Napoli, Italy
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Anna Aliberti
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Ilaria De Santo
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Edmondo Battista
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Filippo Causa
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Paolo A. Netti
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
| | - Nadia Rega
- Dipartimento di
Scienze Chimiche, Università di Napoli ‘Federico II’, Complesso Universitario
di M.S.Angelo, via Cintia, I-80126 Napoli, Italy
- Center for Advanced Biomaterials
for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, I-80125 Napoli, Italy
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Ulrich G, Goeb S, De Nicola A, Retailleau P, Ziessel R. Chemistry at Boron: Synthesis and Properties of Red to Near-IR Fluorescent Dyes Based on Boron-Substituted Diisoindolomethene Frameworks. J Org Chem 2011; 76:4489-505. [DOI: 10.1021/jo200246q] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Gilles Ulrich
- Laboratoire de Chimie Moléculaire et Spectroscopies Avancées (LCOSA), ECPM, CNRS, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Sébastien Goeb
- Laboratoire de Chimie Moléculaire et Spectroscopies Avancées (LCOSA), ECPM, CNRS, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
- Laboratoire MOLTECH-Anjou, Groupe SOMaF, Université d′Angers, 2 bd Lavoisier, 49045 Angers Cedex, France
| | - Antoinette De Nicola
- Laboratoire de Chimie Moléculaire et Spectroscopies Avancées (LCOSA), ECPM, CNRS, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Pascal Retailleau
- Laboratoire de Crystallochimie, ICSN - CNRS, Bât 27 - 1 avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Raymond Ziessel
- Laboratoire de Chimie Moléculaire et Spectroscopies Avancées (LCOSA), ECPM, CNRS, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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9
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El-Shishtawy RM, Asiri AM, Basaif SA, Rashad Sobahi T. Synthesis of a new beta-naphthothiazole monomethine cyanine dye for the detection of DNA in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:1605-1609. [PMID: 20227908 DOI: 10.1016/j.saa.2010.02.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 01/22/2010] [Accepted: 02/11/2010] [Indexed: 05/28/2023]
Abstract
Novel monomethine cyanine dye (MC) derived from beta-naphthothiazole and benzothiazole has been prepared and characterized by (1)H and (13)C NMR, FTIR, ESIMS, elemental analyses, absorption and fluorescence spectroscopy. The dye was conveniently synthesized by the condensation of two sulfate heterocyclic quaternary salts. The interaction between calf thymus DNA (ct-DNA) in tris(hydroxymethyl)aminomethane-HCl (Tris-HCl) aqueous buffer solution and MC has been studied with spectral fluorescence method. The binding constant value has been determined by fluorescence titration of MC with ct-DNA concentrations. The result obtained is consistent with an intercalative binding interaction between MC and ct-DNA. Compared with ethidium bromide (EB), MC showed a huge fluorescence enhancement upon mixing with ct-DNA.
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Affiliation(s)
- Reda M El-Shishtawy
- Faculty of Science, Chemistry Department, King Abdul-Aziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
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10
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Lezhava A, Ishidao T, Ishizu Y, Naito K, Hanami T, Katayama A, Kogo Y, Soma T, Ikeda S, Murakami K, Nogawa C, Itoh M, Mitani Y, Harbers M, Okamoto A, Hayashizaki Y. Exciton Primer-mediated SNP detection in SmartAmp2 reactions. Hum Mutat 2010; 31:208-17. [PMID: 20052755 DOI: 10.1002/humu.21177] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Most commonly used intercalating fluorescent dyes in DNA detection are lacking any sequence specificity, whereas so-called Exciton Primers can overcome this limitation by functioning as "sequence-specific dyes." After hybridization to complementary sequences, the fluorescence of Exciton Primers provides sequence-specific signals for real-time monitoring of amplification reactions. Applied to the SmartAmp2 mutation detection process, Exciton Primers show high signal strength with low background leading to a superior specificity and sensitivity compared to SYBR Green I. Signal strength can be further enhanced using multiple dyes within one Exciton Primer or use of multiple Exciton Primers in the same amplification reaction. Here we demonstrate the use of Exciton Primers for genotyping a single nucleotide polymorphism (SNP) in the VKORC1 locus (-1639G>A) relevant for Warfarin dosing as an example for Exciton Primers mediated genotyping by SmartAmp2. The genotyping assay can use only one labeled Exciton Primer for endpoint detection, or simultaneously by real-time monitoring detect wild-type and mutant alleles in a one-tube reaction using two Exciton Primers having different dyes. Working directly from blood samples, Exciton Primer mediated genotyping by SmartAmp2 offers superior solutions for rapid point-of-care testing.
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Affiliation(s)
- Alexander Lezhava
- Technology Development Unit, Omics Science Center (OSC), RIKEN Yokohama Institute, Kanagawa, Japan
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Abstract
Sequencing of human and other genomes has been at the center of interest in the biomedical field over the past several decades and is now leading toward an era of personalized medicine. During this time, DNA-sequencing methods have evolved from the labor-intensive slab gel electrophoresis, through automated multiCE systems using fluorophore labeling with multispectral imaging, to the "next-generation" technologies of cyclic-array, hybridization based, nanopore and single molecule sequencing. Deciphering the genetic blueprint and follow-up confirmatory sequencing of Homo sapiens and other genomes were only possible with the advent of modern sequencing technologies that were a result of step-by-step advances with a contribution of academics, medical personnel and instrument companies. While next-generation sequencing is moving ahead at breakneck speed, the multicapillary electrophoretic systems played an essential role in the sequencing of the Human Genome, the foundation of the field of genomics. In this prospective, we wish to overview the role of CE in DNA sequencing based in part of several of our articles in this journal.
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MESH Headings
- DNA/analysis
- DNA/genetics
- Electrophoresis, Capillary/history
- Electrophoresis, Capillary/instrumentation
- Electrophoresis, Capillary/methods
- Electrophoresis, Capillary/trends
- Electrophoresis, Microchip/instrumentation
- History, 20th Century
- History, 21st Century
- Humans
- Sequence Analysis, DNA/history
- Sequence Analysis, DNA/instrumentation
- Sequence Analysis, DNA/methods
- Sequence Analysis, DNA/trends
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Affiliation(s)
- Barry L Karger
- The Barnett Institute, Northeastern University, Boston, MA, USA
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12
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Spangler C, Schaeferling M, Wolfbeis OS. Fluorescent probes for microdetermination of inorganic phosphates and biophosphates. Mikrochim Acta 2007. [DOI: 10.1007/s00604-007-0897-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Goze C, Ulrich G, Mallon LJ, Allen BD, Harriman A, Ziessel R. Synthesis and photophysical properties of borondipyrromethene dyes bearing aryl substituents at the boron center. J Am Chem Soc 2007; 128:10231-9. [PMID: 16881653 DOI: 10.1021/ja062405a] [Citation(s) in RCA: 179] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Several borondipyrromethene (Bodipy) dyes bearing an aryl nucleus linked directly to the boron center have been prepared under mild conditions. The choice of Grignard or lithio organo-metallic reagents allows the isolation of B(F)(aryl) or B(aryl)2 derivatives; where aryl refers to phenyl, anisyl, naphthyl, or pyrenyl fragments. A single crystal, X-ray structure determination for the bis-anisyl compound shows that the sp3 hybridized boron center remains pseudo-tetrahedral and that the B-C bond distances are 1.615 and 1.636 A. All compounds are electrode active but replacement of the fluorine atoms by aryl fragments renders the Bodipy unit more easily oxidized by 100 mV in the B(F)(aryl) and 180 mV in the B(aryl)2 compounds whereas reduction is made more difficult by a comparable amount. Strong fluorescence is observed from the Bodipy fluorophore present in each of the new dyes, with the radiative rate constant being independent of the nature of the aryl substituent. The fluorescence quantum yields are solvent dependent and, at least in some cases (aryl = anisyl or pyrenyl), nonradiative decay from the first-excited singlet state is strongly activated. There is no indication, however, for population of a charge-transfer state, in which the aryl substituent acts as donor and the Bodipy fragment functions as acceptor, that is strongly coupled to the ground state. Instead, it is conjectured that nonradiative decay involves a conformational change driven by the solvophobic effect. Thus, the rate of nonradiative decay in any given solvent increases with increasing surface accessibility (or molar volume) of the aryl substituent. Intramolecular energy transfer from pyrene or naphthalene residues to Bodipy is quantitative.
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Affiliation(s)
- Christine Goze
- Laboratoire de Chimie Moléculaire, Centre National de la Recherche Scientifique (CNRS), Ecole de Chimie, Polymères, Matériaux (ECPM), 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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14
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Privat E, Melvin T, Mérola F, Schweizer G, Prodhomme S, Asseline U, Vigny P. Fluorescent Properties of Oligonucleotide-conjugated Thiazole Orange Probes¶. Photochem Photobiol 2007. [DOI: 10.1562/0031-8655(2002)0750201fpooct2.0.co2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Wilson JN, Kool ET. Fluorescent DNA base replacements: Reporters and sensors for biological systems. Org Biomol Chem 2006; 4:4265-74. [PMID: 17102869 DOI: 10.1039/b612284c] [Citation(s) in RCA: 211] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe the design, synthesis, and properties of nucleoside monomers in which the DNA base is replaced by fluorescent hydrocarbons and heterocycles, and the assembly of these monomers into DNA-like molecules in which the all bases are fluorescent. As monomers, such molecules have useful applications as reporters in the DNA context. The use of fluorescent DNA bases, rather than more traditional fluorophores tethered to the DNA strand, gives a more predictable location and orientation, and yields a more direct response to changes that occur within the helix. In addition to uses as monomers, such compounds can be assembled into polychromophoric oligomers ("oligodeoxyfluorosides" or ODFs). ODFs are water soluble, discrete molecules and are easily arranged into specific sequences by use of a DNA synthesizer. They have displayed a number of properties not readily available in commercial fluorophores, including large Stokes shifts, tunable excitation and emission wavelengths, and sensing responses to physical changes or molecular species in solution. We describe an approach to assembling and screening large sets of oligofluorosides for rapid identification of molecules with desirable properties. Such compounds show promise for applications in biochemistry, biology, environmental and materials applications.
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Affiliation(s)
- James N Wilson
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
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18
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Goze C, Ulrich G, Ziessel R. Tetrahedral Boron Chemistry for the Preparation of Highly Efficient “Cascatelle” Devices. J Org Chem 2006; 72:313-22. [PMID: 17221945 DOI: 10.1021/jo060984w] [Citation(s) in RCA: 132] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The replacement of the two fluorine atoms on the boron center of the well-known Bodipy fluorophore by functionalized acetylenic groups opens the way to a new family of highly luminescent, redox active, and stable fluorophores termed "E-Bodipy" species. The substitution is effective for ethynyl-lithium reagents incorporating tolyl, naphthyl, pyrenyl, fluorenyl, and terpyridinyl units. The protocol also tolerates the presence of various functional groups in the dipyrromethene meso position such as pyrene, phenylethynylpyrene, 4'-terpyridine, and iodophenyl. The last of these is particularly useful for a further coupling reaction enabling introduction of a flexible arm bearing a succinimidyl unit reactive toward primary amines. X-ray structure determinations of two E-Bodipy compounds confirm the introduction of the ethynyl units and show the boron atoms to have a distorted tetrahedral environment, with B-C(ethynyl) approximately 1.59 A and both boron atoms lying essentially in the mean planes of the dipyrromethene units. All the new compounds show intense electronic absorption bands (epsilon 60,000-70,000 M-1 cm-1), high quantum yields (>80%), and slow rates of nonradiative decay. Absorption by the aromatic substituents results in a "cascatelle" process leading to emission exclusively through the boradiazaindacene entity and thus large virtual Stokes' shift (>10,000 cm-1). The new compounds are also redox active, with the formation of both Bodipy+* and Bodipy-* occurring more readily than for F-Bodipy species. The molecules in their excited states are strong reducing agents.
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Affiliation(s)
- Christine Goze
- Laboratoire de Chimie Moléculaire, Centre National de la Recherche Scientifique (CNRS), Ecole de Chimie, Polymères, Matériaux (ECPM), 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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19
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Sapsford KE, Berti L, Medintz IL. Materialien für den resonanten Fluoreszenzenergietransfer (FRET): jenseits klassischer Donor-Acceptor-Kombinationen. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200503873] [Citation(s) in RCA: 121] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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20
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Sapsford KE, Berti L, Medintz IL. Materials for Fluorescence Resonance Energy Transfer Analysis: Beyond Traditional Donor–Acceptor Combinations. Angew Chem Int Ed Engl 2006; 45:4562-89. [PMID: 16819760 DOI: 10.1002/anie.200503873] [Citation(s) in RCA: 1028] [Impact Index Per Article: 57.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The use of Förster or fluorescence resonance energy transfer (FRET) as a spectroscopic technique has been in practice for over 50 years. A search of ISI Web of Science with just the acronym "FRET" returns more than 2300 citations from various areas such as structural elucidation of biological molecules and their interactions, in vitro assays, in vivo monitoring in cellular research, nucleic acid analysis, signal transduction, light harvesting and metallic nanomaterials. The advent of new classes of fluorophores including nanocrystals, nanoparticles, polymers, and genetically encoded proteins, in conjunction with ever more sophisticated equipment, has been vital in this development. This review gives a critical overview of the major classes of fluorophore materials that may act as donor, acceptor, or both in a FRET configuration. We focus in particular on the benefits and limitations of these materials and their combinations, as well as the available methods of bioconjugation.
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Affiliation(s)
- Kim E Sapsford
- Center for Bio/Molecular Science and Engineering, U.S. Naval Research Laboratory, Code 6910, 4555 Overlook Avenue SW, Washington, DC 20375, USA
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21
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Zhang T, Fang HHP. Applications of real-time polymerase chain reaction for quantification of microorganisms in environmental samples. Appl Microbiol Biotechnol 2006; 70:281-9. [PMID: 16470363 DOI: 10.1007/s00253-006-0333-6] [Citation(s) in RCA: 138] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2005] [Revised: 01/09/2006] [Accepted: 01/10/2006] [Indexed: 11/27/2022]
Abstract
Due to the advanced development of fluorogenic chemistry, quantitative real-time polymerase chain reaction (qRT-PCR) has become an emerging technique for the detection and quantification of microorganisms in the environment. Compared with the conventional hybridization- and PCR-based techniques, qRT-PCR not only has better sensitivity and reproducibility, but it is also quicker to perform and has a minimum risk of amplicon carryover contamination. This article reviews the principle of this emerging technique, its detection reagents, target DNAs, quantification procedures, and affecting factors. The applications of qRT-PCR for the quantification of microorganisms in the environment are also summarized.
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Affiliation(s)
- Tong Zhang
- Environmental Biotechnology Laboratory, Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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22
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Ndlebe T, Schuster GB. Long-distance radical cation transport in DNA: horizontal charge hopping in a dimeric quadruplex. Org Biomol Chem 2006; 4:4015-21. [PMID: 17047883 DOI: 10.1039/b610159c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of DNA hairpins were synthesized and shown to associate to form quadruplexes formed by stacking five G-quartets in an antiparallel orientation. One of the hairpins in the quadruplex was linked covalently at the 5'-end to an anthraquinone (AQ) group and a 32P label was incorporated either at the 3'-terminus of the AQ-containing hairpin or on its partner hairpin in the quadruplex. Irradiation of the AQ group with UV light leads to the one-electron oxidation of the DNA and concomitant introduction of a radical cation into the DNA. Analysis by PAGE and autoradiography shows that the radical cation reacts at guanines both on the AQ-containing strand and with its partner hairpin in the quadruplex. This observation demonstrates that charge migration in DNA occurs vertically along a DNA chain and horizontally within a G-quartet.
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Affiliation(s)
- Thabisile Ndlebe
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
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23
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Okamoto A, Tanaka K, Fukuta T, Saito I. Cytosine detection by a fluorescein-labeled probe containing base-discriminating fluorescent nucleobase. Chembiochem 2005; 5:958-63. [PMID: 15239053 DOI: 10.1002/cbic.200400010] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We report on a new method for the detection of a base at a specific site in a DNA sequence by monitoring the fluorescence emission of fluorescein. To achieve this goal, we developed a new base-discriminating fluorescent (BDF) nucleobase, naphthodeazaadenine ((ND)A). The fluorescence spectrum of the duplex possessing a cytosine base as a complementary base of (ND)A showed a fluorescence peak at 383 nm when using an excitation wavelength of 350 nm. When the complementary base of (ND)A was one of the other bases, the fluorescence intensity was very low. The fluorescence emission spectrum of (ND)A overlapped with the fluorescence excitation spectrum of fluorescein in the wavelength range of 400-500 nm. Thus, we designed FRET-BDF probes containing (ND)A as the FRET donor and fluorescein as the acceptor. The interaction of these two fluorophores, which are separated by defined base pairs, allowed an efficient energy transfer that resulted in a dominant fluorescence emission of fluorescein at 520 nm when using an excitation wavelength of 350 nm. Fluorescence emission from FRET-BDF probes was observed only when the complementary base of (ND)A is C, thus achieving a clear distinction of a C base on the complementary DNA strand. However, the general utility of our method is limited due to the quenching of the (ND)A fluorescence by a G/C base pair flanking (ND)A.
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Affiliation(s)
- Akimitsu Okamoto
- Department of Synthetic Chemistry and Biological Chemistry, Faculty of Engineering, Kyoto University and SORST, Japan Science and Technology Corporation, Kyoto 615-8510, Japan
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Kan CW, Fredlake CP, Doherty EAS, Barron AE. DNA sequencing and genotyping in miniaturized electrophoresis systems. Electrophoresis 2004; 25:3564-88. [PMID: 15565709 DOI: 10.1002/elps.200406161] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Advances in microchannel electrophoretic separation systems for DNA analyses have had important impacts on biological and biomedical sciences, as exemplified by the successes of the Human Genome Project (HGP). As we enter a new era in genomic science, further technological innovations promise to provide other far-reaching benefits, many of which will require continual increases in sequencing and genotyping efficiency and throughput, as well as major decreases in the cost per analysis. Since the high-resolution size- and/or conformation-based electrophoretic separation of DNA is the most critical step in many genetic analyses, continual advances in the development of materials and methods for microchannel electrophoretic separations will be needed to meet the massive demand for high-quality, low-cost genomic data. In particular, the development (and commercialization) of miniaturized genotyping platforms is needed to support and enable the future breakthroughs of biomedical science. In this review, we briefly discuss the major sequencing and genotyping techniques in which high-throughput and high-resolution electrophoretic separations of DNA play a significant role. We review recent advances in the development of technology for capillary electrophoresis (CE), including capillary array electrophoresis (CAE) systems. Most of these CE/CAE innovations are equally applicable to implementation on microfabricated electrophoresis chips. Major effort is devoted to discussing various key elements needed for the development of integrated and practical microfluidic sequencing and genotyping platforms, including chip substrate selection, microchannel design and fabrication, microchannel surface modification, sample preparation, analyte detection, DNA sieving matrices, and device integration. Finally, we identify some of the remaining challenges, and some of the possible routes to further advances in high-throughput DNA sequencing and genotyping technologies.
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Affiliation(s)
- Cheuk-Wai Kan
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA
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25
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Wyrzykiewicz E, Wendzonka M. Synthesis and physicochemical characterization of fluorescent (E)-2-stilbenyloxyalkylthiouracils and isomer differentiation using EIMS. J Heterocycl Chem 2004. [DOI: 10.1002/jhet.5570410207] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Heinlein T, Knemeyer JP, Piestert O, Sauer M. Photoinduced Electron Transfer between Fluorescent Dyes and Guanosine Residues in DNA-Hairpins. J Phys Chem B 2003. [DOI: 10.1021/jp0348068] [Citation(s) in RCA: 195] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas Heinlein
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| | - Jens-Peter Knemeyer
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| | - Oliver Piestert
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
| | - Markus Sauer
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
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27
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Wyrzykiewicz E, Mielcarek S. New Fluorescent 2- Ortho -( Meta - and Para -) Chloro-(and Bromo-) Benzylthio- N -Phenylcytosines and 6-Methylcytosines. PHOSPHORUS SULFUR 2003. [DOI: 10.1080/10426500307900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Gudmundsson B, Bjarnadottir H, Kristjansdottir S, Jonsson JJ. Quantitative assays for maedi-visna virus genetic sequences and mRNA's based on RT-PCR with real-time FRET measurements. Virology 2003; 307:135-42. [PMID: 12667821 DOI: 10.1016/s0042-6822(02)00067-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We developed robust, ultrasensitive, and accurate quantitative assays for maedi-visna virus (MVV) RNA and DNA genomic sequences and mRNA's expressed at various stages of lentiviral replication. Assay design was based on PCR with real-time fluorescence resonance energy transfer measurements. Specific assays were developed for gag-pol (genomic), tat, rev, env, and vif transcripts. Assay linearity ranged from 60 to 6 x 10(7) copies of target DNA. All assays were able to detect and measure corresponding mRNA's in MVV-infected FOS cells, whereas no signal was detected in mock-treated cells. In addition, RT-PCR based on amplification of gag sequences could be used to quantify RNA genomic sequences in supernatants from infected cells. These quantitative assays can be used to study the role of genetic elements in MVV infection and pathogenesis. They also allow rapid testing of lentiviral vectors and packaging systems based on MVV.
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Affiliation(s)
- Bjarki Gudmundsson
- Department of Biochemistry and Molecular Biology, University of Iceland Faculty of Medicine, Reykjavik, Iceland
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29
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Parsons M, Ng T. Intracellular coupling of adhesion receptors: molecular proximity measurements. Methods Cell Biol 2003; 69:261-78. [PMID: 12070997 DOI: 10.1016/s0091-679x(02)69017-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Maddy Parsons
- Richard Dimbleby Department of Cancer Research/Cancer Research UK Labs, Rayne Institute, St. Thomas Hospital, London SE1 7EH, United Kingdom
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30
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Yarmoluk SM, Lukashov SS, Losytskyy MY, Akerman B, Kornyushyna OS. Interaction of cyanine dyes with nucleic acids: XXVI. Intercalation of the trimethine cyanine dye cyan 2 into double-stranded DNA: study by spectral luminescence methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2002; 58:3223-3232. [PMID: 12511106 DOI: 10.1016/s1386-1425(02)00100-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The interaction between double-stranded (ds) DNA and the cyanine dye Cyan 2 has been studied with spectral luminescence methods. Binding constant values have been determined by fluorescence titration and dye distribution in the two-phase system ethyl acetate-water (3.6 x 10(4) and 1.5 x 10(4) M(-1), respectively). Cyan 2 exhibits a small specificity for guanine-cytosine (GC) sequences in total DNA and synthetic polydeoxynucleotides poly(dA/dT) and poly(dGdC/dGdC). The DNA complexes with Cyan 2 are stable at high-ionic strength solution when NaCl is added. The dye molecule complexed with DNA is apparently shielded from the anionic quencher--iodide ion. The negative linear dichroism of the visible absorption band of aligned Cyan 2-DNA complexes indicates that the bound dye lies almost perpendicularly to the DNA helix axis. The linear dichroism of the absorption band at 260 nm suggests a considerable change in the DNA B-form. The results are consistent with an intercalative binding interaction between Cyan 2 and ds DNA.
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Affiliation(s)
- S M Yarmoluk
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, 150 Zabolotnogo Street, 03143 Kiev, Ukraine.
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31
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Gao J, Strässler C, Tahmassebi D, Kool ET. Libraries of Composite Polyfluors Built from Fluorescent Deoxyribosides. J Am Chem Soc 2002; 124:11590-1. [PMID: 12296712 DOI: 10.1021/ja027197a] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report on a new class of water-soluble fluorescent molecules (polyfluors) that are composed of multiple individual fluorophores assembled on a DNA-like backbone. Four fluorophore deoxyribosides were synthesized, and these individual molecules were assembled into oligofluor strings on a DNA synthesizer. A library of 256 tetrafluors was generated by split and pool methods on polystyrene beads. Images of the library under a fluorescence microscope revealed at least 40-50 different hues and intensities. Selected tetrafluors were resynthesized in pure form in solution and displayed properties, such as large Stokes shifts, that individual fluorophores do not have.
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Affiliation(s)
- Jianmin Gao
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080, USA
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32
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Nazarenko I, Pires R, Lowe B, Obaidy M, Rashtchian A. Effect of primary and secondary structure of oligodeoxyribonucleotides on the fluorescent properties of conjugated dyes. Nucleic Acids Res 2002; 30:2089-195. [PMID: 11972350 PMCID: PMC113842 DOI: 10.1093/nar/30.9.2089] [Citation(s) in RCA: 273] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We studied fluorescence intensity, polarization and lifetime of some commonly used fluorophores conjugated to oligodeoxyribonucleotides with different primary and secondary structures. We found that fluorescence intensity can increase or decrease upon hybridization of the labeled strand to its complement depending on the sequence and position of the fluorophore. Up to 10-fold quenching of the fluorescence upon hybridization was observed when the dye moiety was attached close to the 3' end and the 3'-terminal base was either dG or dC. No quenching upon hybridization was observed when the dye was positioned within the same sequence context but close to the 5' end. The presence of a dG overhang quenches the fluorescence less efficiently than a blunt end dG-dC or dC-dG base pair. When located internally in the double strand, the dG-dC base pair does not affect the fluorescence of the nearby dye. Guanosine in a single-stranded oligonucleotide quenches the fluorescence of nearby dye by <2-fold. Upon duplex formation, this quenching is eliminated and the fluorescence increases. This increase can only be detected when the fluorophore is located at least 6 nt from the terminal dG-dC base pair. The change of fluorescence polarization upon duplex formation inversely correlates with the change of intensity. Fluorescein conjugated to a single-stranded oligonucleotide or a duplex undergoes a bi-exponential decay with approximately 4 and approximately 1 ns lifetimes.
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Affiliation(s)
- Irina Nazarenko
- Invitrogen Corporation, 1620 Faraday Avenue, Carlsbad, CA 92008, USA.
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33
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Frutos AG, Pal S, Quesada M, Lahiri J. Method for detection of single-base mismatches using bimolecular beacons. J Am Chem Soc 2002; 124:2396-7. [PMID: 11890762 DOI: 10.1021/ja012374d] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This paper describes a method for the detection of single-base mismatches using DNA microarrays in a format that does not require labeling of the sample ("target") DNA. The method is based on disrupting fluorescence energy transfer (FRET) between a fluorophore attached to an immobilized DNA strand ("probe") and a quencher-containing sequence that is complementary except for an artificial mismatch (e.g. 5-nitroindole, 3-nitropyrole, or abasic site) at the site of interrogation. As the displacement of the FRET acceptor and hybridization of the unlabeled probe are bimolecular, the term "bimolecular beacons" is used to describe this approach. The analysis of a mismatch was based on differences in the amount of disruption in FRET upon hybridization of perfectly matched DNA targets and those containing single-base mismatches. Using this method and an oligonucleotide model system, A/C single-base mismatches were successfully discriminated at levels greater than that observed using surface-immobilized molecular beacons. The amount of discrimination was dependent on the identity of the artificial mismatch; greater discrimination was observed with 5-nitroindole (a "universal" base) than with an abasic site. G/T mismatches, considered to be particularly difficult to detect, were also successfully discriminated when quencher sequences containing 5-nitroindole were used.
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Affiliation(s)
- Anthony G Frutos
- Science and Technology Division, Corning Incorporated, Corning, NY 14831, USA
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34
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Privat E, Melvin T, Mérola F, Schweizer G, Prodhomme S, Asseline U, Vigny P. Fluorescent properties of oligonucleotide-conjugated thiazole orange probes. Photochem Photobiol 2002; 75:201-10. [PMID: 11950085 DOI: 10.1562/0031-8655(2002)075<0201:fpooct>2.0.co;2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The fluorescence properties of thiazole orange, linked via a (1) hydrophobic alkyl or a (2) hydrophilic ethylene glycol chain to the central internucleotidic phosphate group of a pentadeca-2'-deoxyriboadenylate (dA15), are evaluated. Linkage at the phosphate group yields two stereoisomers, S-isomer of the phosphorus chiral center (Sp) and R-isomer of the phosphorus chiral center (Rp); these are studied separately. The character of the linkage chain and the chirality of the internucleotidic phosphate linkage site influence the fluorescent properties of these thiazole orange-oligonucleotide conjugates (TO-probes). Quantum yields of fluorescence (phifl) of between 0.04 and 0.07 were determined for the single-stranded conjugates. The fluorescence yield increased by up to five times upon hybridization with the complementary sequence (d5'[CACT15CAC3']); (phifl values of between 0.06-0.35 were determined for the double-stranded conjugates. The phifl value (0.17) of thiazole orange, 1-(N,N'-trimethylaminopropyl)-4-[3-methyl-2,3-dihydro-(benzo-1,3-thiazole)-2-methylidene]-quinolinium iodide (TO-Pro 1) in the presence of the oligonucleotide duplex (TO-Pro 1: dA15.d5'[CACT15CAC3'] (1:1)) is much less than that for some of the hybrids of the conjugates. Our studies, using steady-state and time-resolved fluorescence experiments, show that a number of discrete fluorescent association species between the thiazole orange and the helix are formed. Time-resolved studies on the four double-stranded TO-probes revealed that the fluorescent oligonucleotide-thiazole orange complexes are common, only the distribution of the species varies with the character of the chain and the chirality at the internucleotidic phosphate site. Those TO-probes in which the isomeric structure of the phosphate-chain linkage is Rp, and therefore such that the fluorophore is directed toward the minor groove, have higher phifl values than the Sp isomer. Of the systems studied, thiazole orange linked by an alkyl chain to the internucleotidic phosphate (Rp isomer) has the highest phifl and the greatest fraction of the longest-lived fluorescent thiazole orange species (in the hybrid form).
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Affiliation(s)
- Eric Privat
- Centre de Biophysique Moléculaire, CNRS UPR 4301, conventionné avec l'Université d'Orleans et affilié a l'INSERM, Orleans, France
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35
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Didenko VV. DNA probes using fluorescence resonance energy transfer (FRET): designs and applications. Biotechniques 2001; 31:1106-16, 1118, 1120-1. [PMID: 11730017 PMCID: PMC1941713 DOI: 10.2144/01315rv02] [Citation(s) in RCA: 239] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Fluorescence resonance energy transfer (FRET) is widely used in biomedical research as a reporter method. Oligonucleotides with a DNA backbone and one or several chromophore tags have found multiple applications as FRET probes. They are especially advantageous for the real-time monitoring of biochemical reactions and in vivo studies. This paper reviews the design and applications of various DNA-based probes that use FRET The approaches used in the design of new DNA FRET probes are discussed.
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Affiliation(s)
- V V Didenko
- Baylor College of Medicine, Houston, TX, USA.
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36
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Medintz IL, Paegel BM, Blazej RG, Emrich CA, Berti L, Scherer JR, Mathies RA. High-performance genetic analysis using microfabricated capillary array electrophoresis microplates. Electrophoresis 2001; 22:3845-56. [PMID: 11700713 DOI: 10.1002/1522-2683(200110)22:18<3845::aid-elps3845>3.0.co;2-0] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
This review focuses on some recent advances in realizing microfabricated capillary array electrophoresis (microCAE). In particular, the development of a novel rotary scanning confocal fluorescence detector has facilitated the high-speed collection of sequencing and genotyping data from radially formatted microCAE devices. The concomitant development of a convenient energy-transfer cassette labeling chemistry allows sensitive multicolor labeling of any DNA genotyping or sequencing analyte. High-performance hereditary haemochromatosis and short tandem repeat genotyping assays are demonstrated on these devices along with rapid mitochondrial DNA sequence polymorphism analysis. Progress in supporting technology such as robotic fluid dispensing and batched data analysis is also presented. The ultimate goal is to develop a parallel analysis platform capable of integrated sample preparation and automated electrophoretic analysis with a throughput 10-100 times that of current technology.
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Affiliation(s)
- I L Medintz
- Department of Chemistry, University of California, Berkeley 94720, USA
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37
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Berti L, Xie J, Medintz IL, Glazer AN, Mathies RA. Energy transfer cassettes for facile labeling of sequencing and PCR primers. Anal Biochem 2001; 292:188-97. [PMID: 11355850 DOI: 10.1006/abio.2001.5069] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Fluorescence energy transfer (ET) primers and terminators are the reagents of choice for multiplex DNA sequencing and analysis. We present here the design, synthesis and evaluation of a four-color set of ET cassettes, fluorescent labeling reagents that can be quantitatively coupled to a thiol-activated target through a disulfide exchange reaction. The ET cassette consists of a sugar-phosphate spacer with a FAM donor at the 3'-end, an acceptor linked to a modified T-base at the 5'-end of the spacer and a mixed disulfide for coupling to a thiol at the 5'-end. The acceptor dye emission intensities of ET labeled primers produced in this manner are comparable to commercial ET primers. The utility of our ET cassette-labeled primers is demonstrated by performing four-color capillary electrophoresis sequencing with the M13(-21)forward primer and by generating and analyzing a set of single-nucleotide-polymorphism-specific PCR amplicons.
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Affiliation(s)
- L Berti
- Department of Chemistry, University of California, Berkeley 94720, USA
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38
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Lukashov SS, Losytskyy MY, Slominskii YL, Yarmoluk SM. Interaction of cyanine dyes with nucleic acids. 7. Carbocyanine dyes, substituted in polymethine chain, as possible probes for fluorescent nucleic acid detection. ACTA ACUST UNITED AC 2001. [DOI: 10.7124/bc.0005a9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S. S. Lukashov
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine
| | - M. Yu. Losytskyy
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine
| | - Yu. L. Slominskii
- Institute of organic chemistry, National Academy of Sciences of Ukraine
| | - S. M. Yarmoluk
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine
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39
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Lukashov SS, Losytskii MY, Yarmoluk SM, Slominskii YL. The interaction of cyanine dyes with nucleic acids. 12. Novel monomethyne cyanines based on the 5,6-methylenedioxy-benzothiazole and spectral-luminescent properties of thier complexes with nucleic acids. ACTA ACUST UNITED AC 2000. [DOI: 10.7124/bc.000598] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S. S. Lukashov
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine
| | - M. Yu. Losytskii
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine
| | - S. M. Yarmoluk
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine
| | - Y. L. Slominskii
- Institute of organic chemistry, National Academy of Sciences of Ukraine
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40
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Tian H, Brody LC, Landers JP. Rapid detection of deletion, insertion, and substitution mutations via heteroduplex analysis using capillary- and microchip-based electrophoresis. Genome Res 2000; 10:1403-13. [PMID: 10984458 PMCID: PMC310899 DOI: 10.1101/gr.132700] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In this report, we explore the potential of capillary and microchip electrophoresis for heteroduplex analysis- (HDA) based mutation detection. Fluorescent dye-labeled primers (6-FAM-tagged) were used to amplify the DNA fragments ranging from 130 to 400 bp. The effects of DNA fragment length, matrix additives, pH, and salt were evaluated for capillary electrophoresis- (CE) and/or microchip electrophoresis-based HDA, using six heterozygous mutations, 185delAG, E1250X (3867GT), R1443G (4446CG), 5382insC, 5677insA in BRCA1, and 6174delT in BRCA2. For this system, the effective fragment size for CE-based HDA was found in the range of 200-300 bp, however, the effective range was 150-260 bp for microchip-based HDA. Sensitivity studies show CE-based HDA could detect a mutated DNA present at only 1%-10% of the total DNA. Discrimination between wild-type and deletion or insertion mutations in BRCA1 and BRCA2 with CE-based HDA could be achieved in <8 min, while the substitution mutations required 14 min of analysis time. For each mutation region, 15 samples were run to confirm the accuracy and reproducibility of the method. Using the method described, two previously reported mutations, E1038G (3232AG, missense) and 4427 C/T (4427CT, polymorphism), were detected in the tested samples and confirmed by DNA sequencing. Translation of the CE-based methodology to the microchip format allowed the analysis time for each mutation to be decreased to 130 sec. Based on the results obtained with this model system, it is possible that CE-based HDA methodologies can be developed and used effectively in genetic testing. The fast separation time and automated operation afforded with CE instrumentation provide a powerful system for screening mutations that include small deletions, insertions, and point mutations. Translation to the microchip platform, especially to a multichannel microchip system, would allow for screening mutations with high throughput.
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Affiliation(s)
- H Tian
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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41
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Hanning A, Westberg J, Roeraade J. A liquid core waveguide fluorescence detector for multicapillary electrophoresis applied to DNA sequencing in a 91-capillary array. Electrophoresis 2000; 21:3290-304. [PMID: 11001228 DOI: 10.1002/1522-2683(20000901)21:15<3290::aid-elps3290>3.0.co;2-j] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A new laser-induced fluorescence (LIF) detector for multicapillary electrophoresis is presented. The detection principle is based on waveguiding of the emitted fluorescence from the point of illumination to the capillary ends by total internal reflection (TIR) and imaging of the capillary ends. The capillaries themselves thus act as liquid core waveguides (LCWs). At the illumination point, the capillaries are arranged in a planar array, which allows clean and efficient illumination with a line-focused laser beam. The capillary ends are rearranged into a small, densely packed two-dimensional array, which is imaged end-on with high light collection efficiency and excellent image quality. Wavelength dispersion is obtained with a single prism. Intercapillary optical crosstalk is less than 0.5%, and rejection of stray light is very efficient. The detector is applied to four-color DNA sequencing by gel electrophoresis in a 91-capillary array, with simple fluorescein and rhodamine dyes as fluorophores. Since the imaged two-dimensional array is so compact, the detector has a high potential for very large-scale multiplexing.
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Affiliation(s)
- A Hanning
- Royal Institute of Technology, Department of Analytical Chemistry, Stockholm, Sweden
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42
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Rippe K. Simultaneous binding of two DNA duplexes to the NtrC-enhancer complex studied by two-color fluorescence cross-correlation spectroscopy. Biochemistry 2000; 39:2131-9. [PMID: 10694378 DOI: 10.1021/bi9922190] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The transcription activator protein NtrC (nitrogen regulatory protein C, also termed NR(I)) can catalyze the transition of Escherichia coli RNA polymerase complexed with the sigma(54) factor (RNAP x sigma(54)) from the closed complex (RNAP x sigma(54) bound at the promoter) to the open complex (melting of the promoter DNA). This process involves phosphorylation of NtrC (NtrC-P), assembly of an octameric NtrC-P complex at the enhancer DNA sequence, interaction of this complex with promoter-bound RNAP x sigma(54) via DNA looping, and hydrolysis of ATP. Here it is demonstrated by two-color fluorescence cross-correlation spectroscopy measurements of 6-carboxyfluorescein and 6-carboxy-X-rhodamine-labeled DNA oligonucleotide duplexes that the NtrC-P complex can bind two DNA duplexes simultaneously. This suggests a model for the conformation of the looped intermediate that is formed between NtrC-P and RNAP. sigma(54) at the glnAp2 promoter during the activation process.
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Affiliation(s)
- K Rippe
- Deutsches Krebsforschungszentrum, Abteilung Biophysik der Makromoleküle, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany.
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43
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Chen J, Selvin PR. Lifetime- and Color-Tailored Fluorophores in the Micro- to Millisecond Time Regime. J Am Chem Soc 2000. [DOI: 10.1021/ja9913986] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiyan Chen
- Contribution from the Physics Department and Center for Biophysics, University of Illinois, Urbana Illinois 61801
| | - Paul R. Selvin
- Contribution from the Physics Department and Center for Biophysics, University of Illinois, Urbana Illinois 61801
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Synthesis and fluorescent properties of 5-(1-pyrenylethynyl)-2′-deoxyuridine-containing oligodeoxynucleotides. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2000. [DOI: 10.1007/bf02758859] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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45
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Li Y, Glazer AN. Design, synthesis, and spectroscopic properties of peptide-bridged fluorescence energy-transfer cassettes. Bioconjug Chem 1999; 10:241-5. [PMID: 10077473 DOI: 10.1021/bc980080k] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A general partial solid-phase synthetic scheme was developed for the synthesis of energy-transfer cassettes with the donor and acceptor dyes bridged by a peptide. In these cassettes, 6-carboxyfluorescein (Fam) served as a donor. For the second dye, 6-carboxy-X-rhodamine (Rox) was used as a fluorescent acceptor or erythrosin B as a quencher. Different peptides bearing Rox at the amino terminus and Fam linked through different diamines to the carboxyl terminus were synthesized to examine the effects of the chain length and rigidity on energy-transfer efficiency. The ratio of emission intensities at 605 nm of the acceptor dye (ROX) in the cassette Rox-GPPPEPPP-p-xylylenediamine-Fam versus free ROX with 488 nm excitation was approximately 14 and is similar to that obtained for optimized oligonucleotide primers bearing the same dyes [Ju, J., Ruan, C., Fuller, C. W., Glazer, A. N., and Mathies, R. A. (1995) Proc. Natl. Acad. Sci. U.S.A. 92, 4347-4351].
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Affiliation(s)
- Y Li
- Department of Chemistry, University of California, Berkeley, California 94720, USA
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46
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Simpson PC, Roach D, Woolley AT, Thorsen T, Johnston R, Sensabaugh GF, Mathies RA. High-throughput genetic analysis using microfabricated 96-sample capillary array electrophoresis microplates. Proc Natl Acad Sci U S A 1998; 95:2256-61. [PMID: 9482872 PMCID: PMC19311 DOI: 10.1073/pnas.95.5.2256] [Citation(s) in RCA: 133] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/1997] [Accepted: 12/23/1997] [Indexed: 02/06/2023] Open
Abstract
Capillary array electrophoresis (CAE) microplates that can analyze 96 samples in less than 8 min have been produced by bonding 10-cm-diameter micromachined glass wafers to form a glass sandwich structure. The microplate has 96 sample wells and 48 separation channels with an injection unit that permits the serial analysis of two different samples on each capillary. An elastomer sheet with an 8 by 12 array of holes is placed on top of the glass sandwich structure to define the sample wells. Samples are addressed with an electrode array that makes up the third layer of the assembly. Detection of all lanes with high temporal resolution was achieved by using a laser-excited confocal fluorescence scanner. To demonstrate the functionality of these microplates, electrophoretic separation and fluorescence detection of a restriction fragment marker for the diagnosis of hereditary hemochromatosis were performed. CAE microplates will facilitate all types of high-throughput genetic analysis because their high assay speed provides a throughput that is 50 to 100 times greater than that of conventional slab gels.
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Affiliation(s)
- P C Simpson
- Department of Chemistry, College of Chemistry, University of California, Berkeley, CA 94720, USA
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47
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Hung SC, Mathies RA, Glazer AN. Comparison of fluorescence energy transfer primers with different donor-acceptor dye combinations. Anal Biochem 1998; 255:32-8. [PMID: 9448839 DOI: 10.1006/abio.1997.2451] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Fluorescence energy transfer (ET) primers are far superior to single dye-labeled primers as labels for DNA sequencing and polymerase chain reaction amplification. We compare here ET primers with different donor and acceptor dye combinations with respect to the relative acceptor fluorescence emission intensity and the amount of residual donor fluorescence emission. Primers with the following donor/acceptor pairs were synthesized: 6-carboxyfluorescein/6-carboxy-X-rhodamine (FAM-ROX), 3-(epsilon-carboxypentyl)-3'-ethyl-5,5'-dimethyloxacarbocyanine/ 6-carboxy-X-rhodamine (CYA-ROX), and the 4,4-difluoro-4-bora-3 alpha,4 alpha-diaza-s-indacene-3-propionic acid (BODIPY) derivatives, 5,7-dimethyl-BODIPY/5-(4-phenyl-1,3-butadienyl) BODIPY (BODIPY503/512-BODIPY581/591). Variables examined included the length of the 5'-amino linker arm, the number of base pairs between the donor and acceptor, and the excitation wavelength (488 or 514 nm). Of the primers examined, CYA-ROX primers offer the best combination of acceptor fluorescence emission intensity and spectral purity.
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Affiliation(s)
- S C Hung
- Department of Molecular and Cell Biology, University of California Berkeley 94720, USA
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48
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Hung SC, Mathies RA, Glazer AN. Optimization of spectroscopic and electrophoretic properties of energy transfer primers. Anal Biochem 1997; 252:78-88. [PMID: 9324944 DOI: 10.1006/abio.1997.2287] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We have synthesized and characterized the spectroscopic properties of 56 energy transfer (ET) fluorescent dye-labeled primers differing in (i) the spacing between the donor and acceptor, (ii) the nature of the spacer (either oligonucleotide or polydideoxyribose phosphate), (iii) the primer sequence (M13 (-40), M13 (-21), M13 reverse, SP6, T3, and T7 priming sequences), and (iv) the dyes chosen as the donor (6-carboxyfluorescein, F; or 3-(epsilon-carboxypentyl)-3'-ethyl-5,5'-dimethyloxacarbocyanine, C) and acceptor (F; 5 & 6-carboxyrhodamine-110, R110; 6-carboxyrhodamine-6G, G; N,N,N',N'-tetramethyl-6-carboxyrhodamine, T; and 6-carboxy-X-rhodamine, R) chromophores. This study led to the development of two significantly improved ET primer sets for multiple-color analyses. These primers are named using the convention D-N-A, where D is the donor, A is the acceptor, and N is the number of nucleotides between the donor and the acceptor. The primer set C4R110, C4G, C4T, and C4R provides acceptor emissions of high spectral purity with donor:acceptor emission ratios of < 0.002 for C4G, < 0.004 for C4T, and < 0.005 for C4R and excellent matching in the electrophoretic mobilities of single-base extension DNA fragments. The C4R110, C4G, C4T, and C4R set is valuable for diagnostic applications where minimization of crosstalk between different labels is of particular importance. The set C10R110, C10G, C10T, and C10R, which uses only rhodamine dyes as acceptors, shows significantly improved matching in the electrophoretic mobilities of single-base extension DNA fragments over the previously described set C10F, C10G, C10T, and C10R and is the best available for sequencing.
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Affiliation(s)
- S C Hung
- Department of Molecular and Cell Biology, University of California, Berkeley 94720, USA
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