1
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Das MK, Williams EP, Myhre MW, David WM, Kerwin SM. Calcium-Dependent Chemiluminescence Catalyzed by a Truncated c-MYC Promoter G-Triplex DNA. Molecules 2024; 29:4457. [PMID: 39339453 PMCID: PMC11434422 DOI: 10.3390/molecules29184457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2024] [Revised: 09/13/2024] [Accepted: 09/16/2024] [Indexed: 09/30/2024] Open
Abstract
The dynamic landscape of non-canonical DNA G-quadruplex (G4) folding into G-triplex intermediates has led to the study of G-triplex structures and their ability to serve as peroxidase-mimetic DNAzymes. Here we report the formation, stability, and catalytic activity of a 5'-truncated c-MYC promoter region G-triplex, c-MYC-G3. Through circular dichroism, we demonstrated that c-MYC-G3 adopts a stable, parallel-stranded G-triplex conformation. The chemiluminescent oxidation of luminol by the peroxidase mimicking DNAzyme activity of c-MYC-G3 was increased in the presence of Ca2+ ions. We utilized surface plasmon resonance to characterize both c-MYC-G3 G-triplex formation and its interaction with hemin. The detailed study of c-MYC-G3 and its ability to form a G-triplex structure and its DNAzyme activity identifies issues that can be addressed in future G-triplex DNAzyme designs.
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Affiliation(s)
- Malay Kumar Das
- Materials Science, Engineering, and Commercialization Program, Texas State University, San Marcos, TX 78666, USA;
| | - Elizabeth P. Williams
- Department of Chemistry & Biochemistry, Texas State University, San Marcos, TX 78666, USA; (E.P.W.); (M.W.M.); (W.M.D.)
| | - Mitchell W. Myhre
- Department of Chemistry & Biochemistry, Texas State University, San Marcos, TX 78666, USA; (E.P.W.); (M.W.M.); (W.M.D.)
| | - Wendi M. David
- Department of Chemistry & Biochemistry, Texas State University, San Marcos, TX 78666, USA; (E.P.W.); (M.W.M.); (W.M.D.)
| | - Sean M. Kerwin
- Materials Science, Engineering, and Commercialization Program, Texas State University, San Marcos, TX 78666, USA;
- Department of Chemistry & Biochemistry, Texas State University, San Marcos, TX 78666, USA; (E.P.W.); (M.W.M.); (W.M.D.)
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2
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Kumar A, Virender, Saini M, Mohan B, Shayoraj, Kamboj M. Colorimetric and Fluorescent Schiff Base Sensors for Trace Detection of Pollutants and Biologically Significant Cations: A Review (2010-2021). Microchem J 2022. [DOI: 10.1016/j.microc.2022.107798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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3
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Güner D, Şener BB, Bayraç C. Label free detection of auramine O by G-quadruplex-based fluorescent turn-on strategy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120532. [PMID: 34776374 DOI: 10.1016/j.saa.2021.120532] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 10/19/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
Auramine o (AO) is a synthetic dye used in paper and textile industries. Although it has been an unauthorized food additive in many countries due to its toxic and carcinogenic possibility, its illegal uses have been detected in certain food products such as pasta, semolina and spices and also in pharmaceuticals. The presence of AO in food products should be monitored, therefore, to minimize the negative health effects on consumers. In this study, a simple, highly sensitive and selective label free detection method was investigated for AO by G-quadruplex-based fluorescent turn-on strategy. The optimum fluorescent detection assay was achieved with a specific G-quadruplex DNA sequence, c-myc, at 400 nM in Tris-HCl buffer at pH 7.4. The linearity of fluorescence intensity depending on AO concentration ranged from 0 to 0.07 µM and LOD and LOQ were 3 nM and 10 nM, respectively. The G-quadruplex-based detection assay was highly specific for AO as compared to other two synthetic food colorings and successfully applied to determine AO in pasta, bulgur and curry powder with recoveries in the range from 70.33% to 106.49%. This G-quadruplex-based label free detection assay has a significant potential to be used in the detection of AO in food products.
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Affiliation(s)
- Dilan Güner
- Department of Bioengineering, Karamanoğlu Mehmetbey University, Karaman, Turkey
| | | | - Ceren Bayraç
- Department of Bioengineering, Karamanoğlu Mehmetbey University, Karaman, Turkey.
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4
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Heaton I, Platt M. DNAzyme Sensor for the Detection of Ca 2+ Using Resistive Pulse Sensing. SENSORS 2020; 20:s20205877. [PMID: 33080851 PMCID: PMC7589696 DOI: 10.3390/s20205877] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/07/2020] [Accepted: 10/10/2020] [Indexed: 12/26/2022]
Abstract
DNAzymes are DNA oligonucleotides that can undergo a specific chemical reaction in the presence of a cofactor. Ribonucleases are a specific form of DNAzymes where a tertiary structure undergoes cleavage at a single ribonuclease site. The cleavage is highly specificity to co-factors, which makes them excellent sensor recognition elements. Monitoring the change in structure upon cleavage has given rise to many sensing strategies; here we present a simple and rapid method of following the reaction using resistive pulse sensors, RPS. To demonstrate this methodology, we present a sensor for Ca2+ ions in solution. A nanoparticle was functionalised with a Ca2+ DNAzyme, and it was possible to follow the cleavage and rearrangement of the DNA as the particles translocate the RPS. The binding of Ca2+ caused a conformation change in the DNAzyme, which was monitored as a change in translocation speed. A 30 min assay produced a linear response for Ca2+ between 1–9 μm, and extending the incubation time to 60 min allowed for a concentration as low as 0.3 μm. We demonstrate that the signal is specific to Ca2+ in the presence of other metal ions, and we can quantify Ca2+ in tap and pond water samples.
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5
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Yu Y, Zhang Q, Gao H, Yan C, Zheng X, Yang T, Zhou X, Shao Y. Metalloenzyme-mimic innate G-quadruplex DNAzymes using directly coordinated metal ions as active centers. Dalton Trans 2020; 49:13160-13166. [PMID: 32936164 DOI: 10.1039/d0dt02871a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
G-quadruplex DNAs (G4s) have been reported to exhibit the DNAzyme activities by binding with some metal complexes and functional organic ligands. However, there is a challenge to develop metalloenzyme-mimic G4-based innate DNAzymes using the complexed metal ions directly serving as the active centers. This will diversify DNAzymes for developing novel devices since G4 structures are more polymorphic than the other DNA foldings. In this work, we found that the lanthanide trivalent cerium ion of Ce3+ can bind to the human telomere G4 (htG4) according to a 1 : 2 binding mode favorable for creating metalloenzymes-mimic G4 DNAzymes. This Ce3+-G4 entity exhibits a peroxidase activity towards the oxidation of the substrate of 3,3,5,5-tetramethylbenzidine (TMB) by hydrogen peroxide. The 5' G4 tetrads with the orderly arranged carbonyl oxygen atoms are believed to be the coordination sites for Ce3+ and favor the conversion between Ce3+ and Ce4+. Our work provides an alternative feasibility in developing the G4-based innate DNAzymes for variant applications.
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Affiliation(s)
- Yali Yu
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China.
| | - Qingqing Zhang
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China.
| | - Heng Gao
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China.
| | - Chenxiao Yan
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China.
| | - Xiong Zheng
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China.
| | - Tong Yang
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China.
| | - Xiaoshun Zhou
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China.
| | - Yong Shao
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, People's Republic of China.
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6
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Pandey R, Kumar A, Xu Q, Pandey DS. Zinc(ii), copper(ii) and cadmium(ii) complexes as fluorescent chemosensors for cations. Dalton Trans 2020; 49:542-568. [PMID: 31894793 DOI: 10.1039/c9dt03017d] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The fluorescence chemosensing behavior of Zn(ii), Cu(ii), and Cd(ii) based complexes toward cations has been described. Cation detection via conventional mechanisms, metal-metal exchange and chemodosimetric approaches along with the importance of metal ions and the scope, significance, and challenges with regard to the detection of cations by metal complex based probes will be discussed in detail. The fundamentals of photophysical behavior and mechanisms involved in the fluorescence detection of analytes will also be described. This article provides a detailed overview of Zn(ii), Cu(ii), and Cd(ii) based complexes as fluorescent probes for cations, together with essential discussions pertaining to detection mechanisms.
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Affiliation(s)
- Rampal Pandey
- Department of Chemistry, National Institute of Technology Uttarakhand, Srinagar, Garhwal 246174, India
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7
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Ye T, Gao H, Zhang Q, Yan C, Yu Y, Fei Y, Gao L, Zhou X, Shao Y. Polarity inversion sensitized G-quadruplex metal sensors with K + tolerance. Biosens Bioelectron 2019; 145:111703. [PMID: 31546203 DOI: 10.1016/j.bios.2019.111703] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 09/05/2019] [Accepted: 09/13/2019] [Indexed: 12/22/2022]
Abstract
Due to the high abundance of K+ in environments and K+-induced high stability of G-quadruplex (G4), developing a selective G4-based fluorescent sensor for other metal ions with K+ tolerance is a great challenge. Herein, we found that even in the presence of 15000-fold excess of K+, Ba2+ exhibits a highly specific binding with a human telomeric G4 (htG4) in comparison with other G4-binding metal ions such as Pb2+ and Sr2+. This specific binding event can be recognized by a natural fluorophore of hypericin with a lighting-up fluorescence response. Interestingly, inverting the polarity of the most 3' G in htG4 can sensitize the Ba2+ response with the retaining Ba2+ specificity and K+ tolerance. This polarity inversion of htG4 causes a G4 conformation change in K+ and the polarity-inverted htG4 tends to favorably dimerize in response to the Ba2+ specific binding. To our knowledge, this is the first report that polarity inversion of G4 can be applied to construct a selective metal sensor with K+ tolerance. Our findings will open a new way to conveniently regulate the G4 conformation and stability by polarity inversion towards developing high-performance sensors.
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Affiliation(s)
- Ting Ye
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China
| | - Heng Gao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China
| | - Qingqing Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China
| | - Chenxiao Yan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China
| | - Yali Yu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China
| | - Yifan Fei
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China
| | - Longlong Gao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China
| | - Xiaoshun Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China
| | - Yong Shao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China.
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8
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Yao K, Chang Y, Li B, Yang H, Xu K. A novel coumarin-based fluorescent sensor for Ca 2+ and sequential detection of F - and its live cell imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 216:385-394. [PMID: 30921661 DOI: 10.1016/j.saa.2019.03.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/08/2019] [Accepted: 03/16/2019] [Indexed: 06/09/2023]
Abstract
A novel fluorescent sensor CPM for relay detecting Ca2+ and F- based on coumarin has conveniently synthesized and characterized. The sensor CPM showed highly fluorescence enhancement to Ca2+ over other metal ions, and the CPM-Ca2+ complex could selectively recognize F- among other anions. The limits of detection for Ca2+ and F- were 5.81 × 10-7 M and 4.28 × 10-7 M in aqueous solution (DMF/HEPES buffer 1:1 v/v, 10 mM, pH = 7.2), respectively. Their sensing mode had been testified by Job's plots, UV-vis titration, 1H NMR titrations, ESI-mass, fluorescence and DFT calculations. The fluorescence imaging indicated that CPM was cell-permeable and could be used to effectively detect Ca2+ and F- within living cells.
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Affiliation(s)
- Kun Yao
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Yongxin Chang
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Bai Li
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Hao Yang
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Kuoxi Xu
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China; Engineering Laboratory for Flame Retardant and Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
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9
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Wang J, Li T, Shen R, Li G, Ling L. Polymerase Chain Reaction-Dynamic Light Scattering Sensor for DNA and Protein by Using Both Replication and Cleavage Properties of Taq Polymerase. Anal Chem 2019; 91:3429-3435. [DOI: 10.1021/acs.analchem.8b04929] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jing Wang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Tingting Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Ruidi Shen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Gongke Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Liansheng Ling
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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10
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He Z, Feng G, Yang B, Yang L, Liu CW, Xu HG, Xu XL, Zheng WJ, Gao YQ. Molecular dynamics simulation, ab initio calculation, and size-selected anion photoelectron spectroscopy study of initial hydration processes of calcium chloride. J Chem Phys 2018; 148:222839. [DOI: 10.1063/1.5024279] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Zhili He
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Gang Feng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Bin Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lijiang Yang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Cheng-Wen Liu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Hong-Guang Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xi-Ling Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei-Jun Zheng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Qin Gao
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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11
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Baillargeon KR, Meserve K, Faulkner S, Watson S, Butts H, Deighan P, Gerdon AE. Precipitation SELEX: identification of DNA aptamers for calcium phosphate materials synthesis. Chem Commun (Camb) 2018; 53:1092-1095. [PMID: 28045140 DOI: 10.1039/c6cc08687j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
DNA aptamers that enhance calcium phosphate mineral formation were identified using a novel precipitation SELEX method. The evolved DNA library was substantially enriched in G nucleotides and in predicted G-quadruplex structures, suggesting their importance in the mechanism of mineralization. This work could readily be extended to provide additional novel DNA aptamers for materials synthesis.
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Affiliation(s)
- K R Baillargeon
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - K Meserve
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - S Faulkner
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - S Watson
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - H Butts
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - P Deighan
- Department of Biology, Emmanuel College, 400 The Fenway, Boston, MA, USA
| | - A E Gerdon
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
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12
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Affiliation(s)
- Wenhu Zhou
- Xiangya
School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Runjhun Saran
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Juewen Liu
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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13
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Guo Y, Yao W, Xie Y, Zhou X, Hu J, Pei R. Logic gates based on G-quadruplexes: principles and sensor applications. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1633-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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14
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Recent Developments in G-Quadruplex Probes. ACTA ACUST UNITED AC 2015; 22:812-28. [DOI: 10.1016/j.chembiol.2015.06.016] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/09/2015] [Accepted: 06/10/2015] [Indexed: 11/24/2022]
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15
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Ren J, Wang T, Wang E, Wang J. Versatile G-quadruplex-mediated strategies in label-free biosensors and logic systems. Analyst 2015; 140:2556-72. [DOI: 10.1039/c4an02282c] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review addresses how G-quadruplex (G4)-mediated biosensors convert the events of target recognition into a measurable physical signal. The application of label-free G4-strategies in the construction of logic systems is also discussed.
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Affiliation(s)
- Jiangtao Ren
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Tianshu Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Jin Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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16
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Bhasikuttan AC, Mohanty J. Targeting G-quadruplex structures with extrinsic fluorogenic dyes: promising fluorescence sensors. Chem Commun (Camb) 2015; 51:7581-97. [DOI: 10.1039/c4cc10030a] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This article provides a brief account of the recent reports on the fluorescence properties of some of the fluorogenic dyes towards G-quadruplex DNAs, which have been turned into promising bio-analytical methods.
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Affiliation(s)
| | - Jyotirmayee Mohanty
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
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17
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Guo Y, Tong X, Ji L, Wang Z, Wang H, Hu J, Pei R. Visual detection of Ca2+based on aggregation-induced emission of Au(i)–Cys complexes with superb selectivity. Chem Commun (Camb) 2015; 51:596-8. [DOI: 10.1039/c4cc07592g] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An interesting Au(i)–Cys complex was employed for the optical detection of Ca2+based on an aggregation-induced emission phenomenon. This AIE property of Au(i)–thiol complexes may provide a universal sensing strategy by employing different mercapto-appended ligands.
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Affiliation(s)
- Yahui Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry & Molecular Sciences
- Wuhan University
- Wuhan
- 430072 China
| | - Xiaoyan Tong
- Key Laboratory for Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Liya Ji
- Key Laboratory for Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Zhili Wang
- Key Laboratory for Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Hongyan Wang
- Key Laboratory for Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
| | - Jiming Hu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry & Molecular Sciences
- Wuhan University
- Wuhan
- 430072 China
| | - Renjun Pei
- Key Laboratory for Nano-Bio Interface
- Division of Nanobiomedicine
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou
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18
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GUO Y, SUN Y, SHEN X, ZHANG K, HU J, PEI R. Label-free Detection of Zn 2+ Based on G-quadruplex. ANAL SCI 2015; 31:1041-5. [DOI: 10.2116/analsci.31.1041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Yahui GUO
- Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences
| | - Yan SUN
- Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences
| | - Xiaoqiang SHEN
- Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences
| | - Kunchi ZHANG
- Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences
| | - Jiming HU
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry & Molecular Sciences, Wuhan University
| | - Renjun PEI
- Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences
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Ma DL, Chan DSH, Leung CH. Group 9 organometallic compounds for therapeutic and bioanalytical applications. Acc Chem Res 2014; 47:3614-31. [PMID: 25369127 DOI: 10.1021/ar500310z] [Citation(s) in RCA: 208] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CONSPECTUS: Compared with organic small molecules, metal complexes offer several distinct advantages as therapeutic agents or biomolecular probes. Carbon atoms are typically limited to linear, trigonal planar, or tetrahedral geometries, with a maximum of two enantiomers being formed if four different substituents are attached to a single carbon. In contrast, an octahedral metal center with six different substituents can display up to 30 different stereoisomers. While platinum- and ruthenium-based anticancer agents have attracted significant attention in the realm of inorganic medicinal chemistry over the past few decades, group 9 complexes (i.e., iridium and rhodium) have garnered increased attention in therapeutic and bioanalytical applications due to their adjustable reactivity (from kinetically liable to substitutionally inert), high water solubility, stability to air and moisture, and relative ease of synthesis. In this Account, we describe our efforts in the development of group 9 organometallic compounds of general form [M(C(∧)N)2(N(∧)N)] (where M = Ir, Rh) as therapeutic agents against distinct biomolecular targets and as luminescent probes for the construction of oligonucleotide-based assays for a diverse range of analytes. Earlier studies by researchers had focused on organometallic iridium(III) and rhodium(III) half-sandwich complexes that show promising anticancer activity, although their precise mechanisms of action still remain unknown. More recently, kinetically-inert group 9 complexes have arisen as fascinating alternatives to organic small molecules for the specific targeting of enzyme activity. Research in our laboratory has shown that cyclometalated octahedral rhodium(III) complexes were active against Janus kinase 2 (JAK2) or NEDD8-activating enzyme (NAE) activity, or against NO production leading to antivasculogenic activity in cellulo. At the same time, recent interest in the development of small molecules as modulators of protein-protein interactions has stimulated our research group to investigate whether kinetically-inert metal complexes could also be used to target protein-protein interfaces relevant to the pathogenesis of certain diseases. We have recently discovered that cyclometalated octahedral iridium(III) and rhodium(III) complexes bearing C(∧)N ligands based on 2-phenylpyridine could function as modulators of protein-protein interactions, such as TNF-α, STAT3, and mTOR. One rhodium(III) complex antagonized STAT3 activity in vitro and in vivo and displayed potent antitumor activity in a mouse xenograft model of melanoma. Notably, these studies were among the first to demonstrate the direct inhibition of protein-protein interfaces by kinetically-inert group 9 metal complexes. Additionally, we have discovered that group 9 solvato complexes carrying 2-phenylpyridine coligands could function as inhibitors and probes of β-amyloid fibrillogenesis. Meanwhile, the rich photophysical properties of iridium complexes have made them popular tools for the design of luminescent labels and probes. Luminescent iridium(III) complexes benefit from a high quantum yield, responsive emissive properties, long-lived phosphorescence lifetimes, and large Stokes shift values. Over the past few years, our group has developed a number of kinetically-inert, organometallic iridium(III) complexes bearing various C(∧)N and N(∧)N ligands that are selective for G-quadruplex DNA, which is a DNA secondary structure formed from planar stacks of guanine tetrads stabilized by Hoogsteen hydrogen bonding. These complexes were then employed to develop G-quadruplex-based, label-free luminescence switch-on assays for nucleic acids, enzyme activity, small molecules, and metal ions.
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Affiliation(s)
- Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Daniel Shiu-Hin Chan
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine Institute
of Chinese Medical Sciences, University of Macau, Macao SAR, China
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Ma DL, He HZ, Chan DSH, Wong CY, Leung CH. A colorimetric and luminescent dual-modal assay for Cu(II) ion detection using an iridium(III) complex. PLoS One 2014; 9:e99930. [PMID: 24927177 PMCID: PMC4057321 DOI: 10.1371/journal.pone.0099930] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 05/20/2014] [Indexed: 11/24/2022] Open
Abstract
A novel iridium(III) complex-based chemosensor bearing the 5,6-bis(salicylideneimino)-1,10-phenanthroline ligand receptor was developed, which exhibited a highly sensitive and selective color change from colorless to yellow and a visible turn-off luminescence response upon the addition of Cu(II) ions. The interactions of this iridium(III) complex with Cu2+ ions and thirteen other cations have been investigated by UV-Vis absorption titration, emission titration, and 1H NMR titration.
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Affiliation(s)
- Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Hong-Zhang He
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Daniel Shiu-Hin Chan
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Chun-Yuen Wong
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, People's Republic of China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
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Kohagen M, Mason PE, Jungwirth P. Accurate Description of Calcium Solvation in Concentrated Aqueous Solutions. J Phys Chem B 2014; 118:7902-9. [DOI: 10.1021/jp5005693] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Miriam Kohagen
- Institute of Organic Chemistry
and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo
nam. 2, 16610 Prague
6, Czech Republic
| | - Philip E. Mason
- Institute of Organic Chemistry
and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo
nam. 2, 16610 Prague
6, Czech Republic
| | - Pavel Jungwirth
- Institute of Organic Chemistry
and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo
nam. 2, 16610 Prague
6, Czech Republic
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