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Vázquez JL, Velazco-Cabral I, Alvarado-Méndez E, Trejo-Durán M, Flores-Alamo M, Peña-Cabrera E, García-Revilla MA, Vázquez MA. Effect of the substituents of new coumarin-imidazo[1,2- a]heterocyclic-3-acrylate derivatives on nonlinear optical properties: a combined experimental-theoretical approach. Phys Chem Chem Phys 2021; 23:22466-22475. [PMID: 34585696 DOI: 10.1039/d1cp03396d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of new coumarin-imidazo[1,2-a]heterocyclic-3-acrylate derivatives 7a-h were synthesized by the Heck reaction between the corresponding 3-(imidazo[1,2-a]pyrimidines)-(2-yl)-2H-chromen-2-ones 4a-e and methyl acrylate in 45-87% yields. The effect of the distinct substituents on third-order nonlinear optical properties was examined, experimentally measuring their nonlinear refractive indexes by the Z-scan technique. Density functional theory and time-dependent density functional theory were utilized with the B3LYP, CAM-B3LYP, PBE (PBEPBE), and M062X functionals on Gaussian09 software to calculate the vertical excitation, relaxation of the brightest excited states, conformation, HOMO-LUMO gaps, oscillator strength, polarizability, and hyperpolarizabilities of all derivatives. Although all acrylates showed a nonlinear response at a certain level of power, the compounds bearing a diethylamino electron-donating group exhibited higher nonlinear refractive index values (∼10-9 cm2 W-1), which is in agreement with the trend in the computational calculations of the first and second hyperpolarization. According to the structural analysis, the electron-withdrawing group (acrylate) is mainly responsible for the loss of coplanarity because of increasing the dihedral angle between the coumarin and imidazo[1,2-a]heterocyclic moieties (to 39.1°). On the other hand, the unsubstituted compound 4a presented the greatest nonlinearity due to its almost coplanar structure (n2 ∼ 10-8 cm2 W-1), highlighting the importance of this feature.
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Affiliation(s)
- Juan Luis Vázquez
- Chemistry Department, DCNE, University of Guanajuato, Noria Alta s/n, 36050, Guanajuato, Gto, Mexico.
| | - Iván Velazco-Cabral
- Chemistry Department, DCNE, University of Guanajuato, Noria Alta s/n, 36050, Guanajuato, Gto, Mexico.
| | - Edgar Alvarado-Méndez
- Engineering Division Campus Irapuato-Salamanca, University of Guanajuato, Palo Blanco s/n, 36885, Salamanca, Gto, Mexico
| | - Mónica Trejo-Durán
- Engineering Division Campus Irapuato-Salamanca, University of Guanajuato, Palo Blanco s/n, 36885, Salamanca, Gto, Mexico
| | - Marcos Flores-Alamo
- Faculty of Chemistry, National Autonomous University of Mexico, Av. Insurgentes Sur S/N, 04510, DF, Mexico
| | - Eduardo Peña-Cabrera
- Chemistry Department, DCNE, University of Guanajuato, Noria Alta s/n, 36050, Guanajuato, Gto, Mexico.
| | - Marco A García-Revilla
- Chemistry Department, DCNE, University of Guanajuato, Noria Alta s/n, 36050, Guanajuato, Gto, Mexico.
| | - Miguel A Vázquez
- Chemistry Department, DCNE, University of Guanajuato, Noria Alta s/n, 36050, Guanajuato, Gto, Mexico.
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2
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Cervi A, Vo Y, Chai CLL, Banwell MG, Lan P, Willis AC. Gold(I)-Catalyzed Intramolecular Hydroarylation of Phenol-Derived Propiolates and Certain Related Ethers as a Route to Selectively Functionalized Coumarins and 2 H-Chromenes. J Org Chem 2021; 86:178-198. [PMID: 33253562 DOI: 10.1021/acs.joc.0c02011] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Methods are reported for the efficient assembly of a series of phenol-derived propiolates, including the parent system 56, and their Au(I)-catalyzed cyclization (intramolecular hydroarylation) to give the corresponding coumarins (e.g., 1). Simple syntheses of natural products such as ayapin (144) and scoparone (145) have been realized by such means, and the first of these subject to single-crystal X-ray analysis. A related process is described for the conversion of propargyl ethers such as 156 into the isomeric 2H-chromene precocene I (159), a naturally occurring inhibitor of juvenile hormone biosynthesis.
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Affiliation(s)
- Aymeric Cervi
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory 2601, Australia.,Institute of Chemical and Engineering Sciences, 8 Biomedical Grove, #07-01 Neuros, 138665, Singapore
| | - Yen Vo
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Christina L L Chai
- Institute of Chemical and Engineering Sciences, 8 Biomedical Grove, #07-01 Neuros, 138665, Singapore.,Department of Pharmacy, National University of Singapore, 18 Science Drive 4, 117543, Singapore
| | - Martin G Banwell
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory 2601, Australia.,Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou, Guangdong 510632, China
| | - Ping Lan
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou, Guangdong 510632, China
| | - Anthony C Willis
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
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3
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Ayele TM, Knutson SD, Ellipilli S, Hwang H, Heemstra JM. Fluorogenic Photoaffinity Labeling of Proteins in Living Cells. Bioconjug Chem 2019; 30:1309-1313. [PMID: 30978287 DOI: 10.1021/acs.bioconjchem.9b00203] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Genetically encoded fluorescent proteins or small-molecule probes that recognize specific protein binding partners can be used to label proteins to study their localization and function with fluorescence microscopy. However, these approaches are limited in signal-to-background resolution and the ability to temporally control labeling. Herein, we describe a covalent protein labeling technique using a fluorogenic malachite green probe functionalized with a photoreactive cross-linker. This enables a controlled covalent attachment to a genetically encodable fluorogen activating protein (FAP) with low background signal. We demonstrate covalent labeling of a protein in vitro as well as in live mammalian cells. This method is straightforward, displays high labeling specificity, and results in improved signal-to-background ratios in photoaffinity labeling of target proteins. Additionally, this probe provides temporal control over reactivity, enabling future applications in real-time monitoring of cellular events.
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Affiliation(s)
- Tewoderos M Ayele
- Department of Chemistry , Emory University , Atlanta , Georgia 30322 , United States
| | - Steve D Knutson
- Department of Chemistry , Emory University , Atlanta , Georgia 30322 , United States
| | - Satheesh Ellipilli
- Department of Chemistry , Emory University , Atlanta , Georgia 30322 , United States
| | - Hyun Hwang
- Department of Chemistry , Emory University , Atlanta , Georgia 30322 , United States
| | - Jennifer M Heemstra
- Department of Chemistry , Emory University , Atlanta , Georgia 30322 , United States
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4
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Debieu S, Romieu A. In situ formation of pyronin dyes for fluorescence protease sensing. Org Biomol Chem 2017; 15:2575-2584. [DOI: 10.1039/c7ob00370f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cutting-edge strategy for fluorogenic sensing of proteases (leucine aminopeptidase for the proof of concept) and based on the “covalent-assembly” principle is reported. Non-fluorescent mixed bis-aryl ethers are readily converted into a fluorescent pyronin through a domino process triggered by the peptide bond cleavage event caused by the targeted enzyme.
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Affiliation(s)
- Sylvain Debieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR 6302
- CNRS
- Univ. Bourgogne Franche-Comté
- 21078 Dijon
| | - Anthony Romieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne
- UMR 6302
- CNRS
- Univ. Bourgogne Franche-Comté
- 21078 Dijon
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5
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Li X, Ma W, Shestopalov AA. Vapor-Phase Carbenylation of Hard and Soft Material Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:11386-11394. [PMID: 27759398 DOI: 10.1021/acs.langmuir.6b02471] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study describes the formation of functional organic monolayers on hard and soft interfaces via a vapor-phase carbene insertion into Si-H and C-H bonds. We demonstrate that functional diazirine molecules can be used to form monomolecular coatings on silicon, silicon nitride, and urethane-acrylate polymers under mild vacuum conditions and exposure to UV light. We investigate the molecular coverage and the long-term stability of the resulting monolayers in air, isopropanol, and water. Our results suggest that vapor-phase carbenylation can be used as a complementary technology to the traditional self-assembly, permitting functionalization of various passivated substrates with stable and functional molecular coatings under mild and scalable conditions.
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Affiliation(s)
- Xunzhi Li
- Department of Chemical Engineering, University of Rochester , Rochester, New York 14627, United States
| | - Wenchuan Ma
- Department of Chemical Engineering, University of Rochester , Rochester, New York 14627, United States
| | - Alexander A Shestopalov
- Department of Chemical Engineering, University of Rochester , Rochester, New York 14627, United States
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6
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Ursu A, Waldmann H. Hide and seek: Identification and confirmation of small molecule protein targets. Bioorg Med Chem Lett 2015; 25:3079-86. [PMID: 26115575 DOI: 10.1016/j.bmcl.2015.06.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/01/2015] [Accepted: 06/04/2015] [Indexed: 12/14/2022]
Abstract
Target identification and confirmation for small molecules is often the rate limiting step in drug discovery. A robust method to identify proteins addressed by small molecules is affinity chromatography using chemical probes. These usually consist of the compound of interest equipped with a linker molecule and a proper tag. Recently, methods emerged that allow the identification of protein targets without prior functionalization of the small molecule of interest. The digest offers an update on the newest developments in the area of target identification with special focus on confirmation techniques.
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Affiliation(s)
- Andrei Ursu
- Department of Chemical Biology, Max-Planck-Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany; Chemical Biology, Faculty of Chemistry and Chemical Biology, TU Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
| | - Herbert Waldmann
- Department of Chemical Biology, Max-Planck-Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany; Chemical Biology, Faculty of Chemistry and Chemical Biology, TU Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.
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7
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Masuda S, Tomohiro T, Yamaguchi S, Morimoto S, Hatanaka Y. Structure-assisted ligand-binding analysis using fluorogenic photoaffinity labeling. Bioorg Med Chem Lett 2015; 25:1675-1678. [DOI: 10.1016/j.bmcl.2015.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/02/2015] [Accepted: 03/04/2015] [Indexed: 11/29/2022]
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8
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Suzuki T, Okamura T, Tomohiro T, Iwabuchi Y, Kanoh N. Third generation photo-cross-linked small-molecule affinity matrix: a photoactivatable and photocleavable system enabling quantitative analysis of the photo-cross-linked small molecules and their target purification. Bioconjug Chem 2015; 26:389-95. [PMID: 25668603 DOI: 10.1021/bc500559e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The third generation of photoactivatable beads designed to capture bioactive small molecules in a chemo- and site-nonselective manner upon irradiation at 365 nm of UV light and release them as coumarin conjugates after exposure to UV light of 302 nm is described. These photoactivatable and photocleavable beads enable quantification of the amount and distribution of immobilized small molecules prior to the pull-down experiments to identify target protein(s) for the immobilized small molecules. The newly developed system was then used to analyze the functional group compatibility of the photo-cross-linking technology as well as the preferable nature of small molecules to be immobilized. As a result, compounds having a hydroxyl group, carboxylic acid, or aromatic ring were shown to give multiple conjugates, indicating that these compounds are well compatible with the photoactivatable beads system.
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Affiliation(s)
- Takahiro Suzuki
- †Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Toshitaka Okamura
- †Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Takenori Tomohiro
- ‡Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Yoshiharu Iwabuchi
- †Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Naoki Kanoh
- †Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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9
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Hatanaka Y. Development and Leading-Edge Application of Innovative Photoaffinity Labeling. Chem Pharm Bull (Tokyo) 2015; 63:1-12. [DOI: 10.1248/cpb.c14-00645] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Tomohiro T, Morimoto S, Shima T, Chiba J, Hatanaka Y. An Isotope-Coded Fluorogenic Cross-Linker for High-Performance Target Identification Based on Photoaffinity Labeling. Angew Chem Int Ed Engl 2014; 53:13502-5. [DOI: 10.1002/anie.201408580] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 10/02/2014] [Indexed: 12/19/2022]
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11
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Tomohiro T, Morimoto S, Shima T, Chiba J, Hatanaka Y. An Isotope-Coded Fluorogenic Cross-Linker for High-Performance Target Identification Based on Photoaffinity Labeling. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408580] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Tomohiro T, Hatanaka Y. Diazirine-Based Multifunctional Photo-Probes for Affinity-Based Elucidation of Protein-Ligand Interaction. HETEROCYCLES 2014. [DOI: 10.3987/rev-14-803] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Tomohiro T, Inoguchi H, Masuda S, Hatanaka Y. Affinity-based fluorogenic labeling of ATP-binding proteins with sequential photoactivatable cross-linkers. Bioorg Med Chem Lett 2013; 23:5605-8. [PMID: 23999042 DOI: 10.1016/j.bmcl.2013.08.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 07/22/2013] [Accepted: 08/08/2013] [Indexed: 01/02/2023]
Abstract
A specific illumination approach has been developed for identification of adenosine triphosphate (ATP)-binding proteins. This strategy utilizes a tandem photoactivatable unit that consists of a diazirine group as a carbene precursor and an o-hydroxycinnamate moiety as a coumarin precursor. The photolysis of diazirine induces a specific cross-link on target proteins and is followed by photoactivation of coumarin generation with a concomitant release of the pre-installed affinity ligand. The ATP, installed with this cross-linker at the γ-position, successfully transferred a coumarin onto ATP-binding proteins using only UV-irradiation.
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Affiliation(s)
- Takenori Tomohiro
- Laboratory of Biorecognition Chemistry, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
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14
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Morimoto S, Tomohiro T, Maruyama N, Hatanaka Y. Photoaffinity casting of a coumarin flag for rapid identification of ligand-binding sites within protein. Chem Commun (Camb) 2013; 49:1811-3. [PMID: 23349004 DOI: 10.1039/c3cc38594a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
A photo-switchable fluorescent flagging approach has been developed to identify photoaffinity-labeled peptides in target protein. Upon photochemical release of the ligand, the protein was newly modified with a coumarin in place of the previously attached biotin. It allowed us to simplify complex identification processes for labeled sites.
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Affiliation(s)
- Shota Morimoto
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
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15
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Tomohiro T, Yamamoto A, Tatsumi Y, Hatanaka Y. [3-(Trifluoromethyl)-3H-diazirin-3-yl]coumarin as a carbene-generating photocross-linker with masked fluorogenic beacon. Chem Commun (Camb) 2013; 49:11551-3. [DOI: 10.1039/c3cc45780j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Wysocki LM, Lavis LD. Advances in the chemistry of small molecule fluorescent probes. Curr Opin Chem Biol 2011; 15:752-9. [PMID: 22078994 DOI: 10.1016/j.cbpa.2011.10.013] [Citation(s) in RCA: 181] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 10/08/2011] [Accepted: 10/17/2011] [Indexed: 11/19/2022]
Abstract
Small molecule fluorophores are essential tools for chemical biology. A benefit of synthetic dyes is the ability to employ chemical approaches to control the properties and direct the position of the fluorophore. Applying modern synthetic organic chemistry strategies enables efficient tailoring of the chemical structure to obtain probes for specific biological experiments. Chemistry can also be used to activate fluorophores; new fluorogenic enzyme substrates and photoactivatable compounds with improved properties have been prepared that facilitate advanced imaging experiments with low background fluorescence. Finally, chemical reactions in live cells can be used to direct the spatial distribution of the fluorophore, allowing labeling of defined cellular regions with synthetic dyes.
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Affiliation(s)
- Laura M Wysocki
- Janelia Farm Research Campus, Howard Hughes Medical Institute, 19700 Helix Dr., Ashburn, VA 20147, USA
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