1
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Bogdanova YA, Zaitseva ER, Smirnov AY, Baleeva NS, Gavrikov AS, Myasnyanko IN, Goncharuk SA, Kot EF, Mineev KS, Mishin AS, Baranov MS. NanoLuc Luciferase as a Fluorogen-Activating Protein for GFP Chromophore Based Fluorogens. Int J Mol Sci 2023; 24:ijms24097958. [PMID: 37175667 PMCID: PMC10178166 DOI: 10.3390/ijms24097958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/20/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
In this work, we showed that the well-known NanoLuc luciferase can act as a fluorogen activating protein for various arylidene-imidazolones structurally similar to the Kaede protein chromophore. We showed that such compounds can be used as fluorescent sensors for this protein and can also be used in pairs with it in fluorescent microscopy as a genetically encoded tag.
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Affiliation(s)
- Yulia A Bogdanova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Elvira R Zaitseva
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Alexander Yu Smirnov
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Laboratory of Medicinal Substances Chemistry, Institute of Translational Medicine, Pirogov Russian National Research Medical University, Ostrovitianov 1, 117997 Moscow, Russia
| | - Nadezhda S Baleeva
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Laboratory of Medicinal Substances Chemistry, Institute of Translational Medicine, Pirogov Russian National Research Medical University, Ostrovitianov 1, 117997 Moscow, Russia
| | - Alexey S Gavrikov
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Ivan N Myasnyanko
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Laboratory of Medicinal Substances Chemistry, Institute of Translational Medicine, Pirogov Russian National Research Medical University, Ostrovitianov 1, 117997 Moscow, Russia
| | - Sergey A Goncharuk
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Erik F Kot
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Konstantin S Mineev
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Alexander S Mishin
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Mikhail S Baranov
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Laboratory of Medicinal Substances Chemistry, Institute of Translational Medicine, Pirogov Russian National Research Medical University, Ostrovitianov 1, 117997 Moscow, Russia
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2
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Myasnyanko IN, Baleeva NS, Baranov MS. Study of the Position of the Conjugated Substitute Influence on the Optical Properties of the Kaede Protein Chromophore Derivatives. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162022030141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Myasnyanko IN, Gavrikov AS, Zaitseva SO, Smirnov AY, Zaitseva ER, Sokolov AI, Malyshevskaya KK, Baleeva NS, Mishin AS, Baranov MS. Color Tuning of Fluorogens for FAST Fluorogen‐Activating Protein. Chemistry 2021; 27:3986-3990. [DOI: 10.1002/chem.202004760] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/16/2020] [Indexed: 01/04/2023]
Affiliation(s)
- Ivan N. Myasnyanko
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Alexey S. Gavrikov
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Snizhana O. Zaitseva
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Alexander Yu. Smirnov
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Elvira R. Zaitseva
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Anatolii I. Sokolov
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Kseniya K. Malyshevskaya
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Nadezhda S. Baleeva
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Alexander S. Mishin
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Mikhail S. Baranov
- Institute of Bioorganic Chemistry Russian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
- Pirogov Russian National Research Medical University Ostrovitianov 1 Moscow 117997 Russia
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4
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Li W, Xin J, Zhai P, Lin J, Huang S, Gao W, Li X. Access to highly functionalized imidazolones bearing α-amino acid esters via KOH-promoted annulation of amidines, nitrosoarenes and malonic esters. Org Biomol Chem 2021; 19:6473-6477. [PMID: 34236374 DOI: 10.1039/d1ob00930c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient approach to obtain highly functionalized imidazolones bearing α-amino acid esters through KOH-mediated one-pot three-component annulation of amidines, nitrosoarenes and malonic esters is reported. This reaction features broad substrate scope, a cheap and readily available promoter, good to high yields for most substrates and mild reaction conditions. The mechanism study shows that the KOH-mediated formation of the imine intermediate via the reaction of nitrosoarenes with malonic esters is a key step.
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Affiliation(s)
- Wenhui Li
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Jie Xin
- Feicheng Hospital Affiliated to Shandong First Medical University, Feicheng 271600, China
| | - Pingan Zhai
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Jianying Lin
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Shuangping Huang
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Wenchao Gao
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Xing Li
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
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5
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Sokolov AI, Myasnyanko IN, Baleeva NS, Baranov MS. Convenient and Versatile Synthetic Protocol for Arylidene‐1
H
‐imidazol‐5(4
H
)‐ones. ChemistrySelect 2020. [DOI: 10.1002/slct.202001782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anatolii I. Sokolov
- Institute of Bioorganic ChemistryRussian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Ivan N. Myasnyanko
- Institute of Bioorganic ChemistryRussian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Nadezhda S. Baleeva
- Institute of Bioorganic ChemistryRussian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Mikhail S. Baranov
- Institute of Bioorganic ChemistryRussian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
- Pirogov Russian National Russia Research Medical UniversityInstitute of Bioorganic ChemistryRussian Academy of Sciences Miklukho-Maklaya 16/10 117997 Moscow Russia
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6
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Garre MS, Losantos R, Gutiérrez S, Sucunza D, García-García P, Sampedro D, Vaquero JJ. Synthesis and Photophysical Behavior of a Highly Fluorescent Family of Unsymmetrical Organoboron Complexes Containing 5-(Pyridin-2-ylmethylene)imidazolidine-2,4-dione Moieties. J Org Chem 2019; 85:441-448. [PMID: 31858801 DOI: 10.1021/acs.joc.9b02451] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A new and highly fluorescent family of unsymmetrical organoboron complexes containing 5-(pyridin-2-ylmethylene)imidazolidine-2,4-dione moieties has been synthesized in three steps. These compounds show strong absorptions covering a wide range of the UV-vis spectrum and are strongly emissive (ϕf of up to 0.92 in CH3CN). Moreover, two fluorophores that include an alkyne or an azide group at the end of the alkyl chain and with potential utility in bioorthogonal chemistry have been developed. One of these, in which the glycol substituent provides an enhanced water solubility without compromising the fluorescence (ϕf = 0.85 in water), may be of particular importance.
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Affiliation(s)
- M Soledad Garre
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
| | - Raúl Losantos
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ) , Universidad de La Rioja , Madre de Dios 53 , 26006 Logroño , Spain
| | - Sara Gutiérrez
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
| | - David Sucunza
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
| | - Patricia García-García
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
| | - Diego Sampedro
- Departamento de Química, Centro de Investigación en Síntesis Química (CISQ) , Universidad de La Rioja , Madre de Dios 53 , 26006 Logroño , Spain
| | - Juan J Vaquero
- Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR) , Universidad de Alcalá, IRYCIS , 28805 Alcalá de Henares , Spain
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7
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Baleeva NS, Khavroshechkina AV, Zaitseva ER, Myasnyanko IN, Zagudaylova MB, Baranov MS. Naphthalene derivatives of a conformationally locked GFP chromophore with large stokes shifts. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.150963] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Povarova NV, Zaitseva SO, Baleeva NS, Smirnov AY, Myasnyanko IN, Zagudaylova MB, Bozhanova NG, Gorbachev DA, Malyshevskaya KK, Gavrikov AS, Mishin AS, Baranov MS. Red-Shifted Substrates for FAST Fluorogen-Activating Protein Based on the GFP-Like Chromophores. Chemistry 2019; 25:9592-9596. [PMID: 31111975 DOI: 10.1002/chem.201901151] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/14/2019] [Indexed: 11/10/2022]
Abstract
A genetically encoded fluorescent tag for live cell microscopy is presented. This tag is composed of previously published fluorogen-activating protein FAST and a novel fluorogenic derivative of green fluorescent protein (GFP)-like chromophore with red fluorescence. The reversible binding of the novel fluorogen and FAST is accompanied by three orders of magnitude increase in red fluorescence (580-650 nm). The proposed dye instantly stains target cellular proteins fused with FAST, washes out in a minute timescale, and exhibits higher photostability of the fluorescence signal in confocal and widefield microscopy, in contrast with previously published fluorogen:FAST complexes.
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Affiliation(s)
- Natalia V Povarova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Snizhana O Zaitseva
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Nadezhda S Baleeva
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Alexander Yu Smirnov
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Ivan N Myasnyanko
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Marina B Zagudaylova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Nina G Bozhanova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Dmitriy A Gorbachev
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia.,Center of Life Sciences, Skolkovo Institute of Science and Technology, Bolshoy Blvd 30, Moscow, 121205, Russia
| | - Kseniya K Malyshevskaya
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia.,Center of Life Sciences, Skolkovo Institute of Science and Technology, Bolshoy Blvd 30, Moscow, 121205, Russia
| | - Alexey S Gavrikov
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Alexander S Mishin
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia
| | - Mikhail S Baranov
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997, Moscow, Russia.,Pirogov Russian National Research Medical University, Ostrovitianov 1, Moscow, 117997, Russia
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9
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Zaitseva SO, Golodukhina SV, Baleeva NS, Levina EA, Smirnov AY, Zagudaylova MB, Baranov MS. Azidoacetic Acid Amides in the Synthesis of Substituted Arylidene‐1‐
H
‐imidazol‐5‐(4
H
)‐ones. ChemistrySelect 2018. [DOI: 10.1002/slct.201801349] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Snizhana O. Zaitseva
- Institute of Bioorganic ChemistryRussian Academy of Sciences, Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Svetlana V. Golodukhina
- Institute of Bioorganic ChemistryRussian Academy of Sciences, Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Nadezhda S. Baleeva
- Institute of Bioorganic ChemistryRussian Academy of Sciences, Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Evgenia A. Levina
- Institute of Bioorganic ChemistryRussian Academy of Sciences, Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Alexander Yu. Smirnov
- Institute of Bioorganic ChemistryRussian Academy of Sciences, Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Marina B. Zagudaylova
- Institute of Bioorganic ChemistryRussian Academy of Sciences, Miklukho-Maklaya 16/10 117997 Moscow Russia
| | - Mikhail S. Baranov
- Institute of Bioorganic ChemistryRussian Academy of Sciences, Miklukho-Maklaya 16/10 117997 Moscow Russia
- Pirogov Russian National Research Medical University, Ostrovitianov 1 117997 Moscow Russia
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10
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Smirnov AY, Baleeva NS, Zaitseva SO, Mineev KS, Baranov MS. Derivatives of Azidocinnamic Acid in the Synthesis of 2-Amino-4-Arylidene-1H-Imidazol-5(4H)-Ones. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2318-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Baleeva NS, Gorbachev DA, Baranov MS. The Role of C2-Substituents in the Imidazolone Ring in the Degradation of GFP Chromophore Derivatives. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1068162018030020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Ermakova YG, Sen T, Bogdanova YA, Smirnov AY, Baleeva NS, Krylov AI, Baranov MS. Pyridinium Analogues of Green Fluorescent Protein Chromophore: Fluorogenic Dyes with Large Solvent-Dependent Stokes Shift. J Phys Chem Lett 2018; 9:1958-1963. [PMID: 29589942 DOI: 10.1021/acs.jpclett.8b00512] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Novel fluorogenic dyes based on the GFP chromophore are developed. The compounds contain a pyridinium ring instead of phenolate and feature large Stokes shifts and solvent-dependent variations in the fluorescence quantum yield. Electronic structure calculations explain the trends in solvatochromic behavior in terms of the increase of the dipole moment upon excited-state relaxation in polar solvents associated with the changes in bonding pattern in the excited state. A unique combination of such optical characteristics and lipophilic properties enables using one of the new dyes for imaging the membrane structure of endoplasmic reticulum. An extremely high photostability (due to a dynamic exchange between the free and absorbed states) and selectivity make this compound a promising label for this type of cellular organelles.
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Affiliation(s)
- Yulia G Ermakova
- Institute of Bioorganic Chemistry , Russian Academy of Sciences , Miklukho-Maklaya 16/10 , 117997 Moscow , Russia
- Pirogov Russian National Research Medical University , Ostrovitianov 1 , 117997 Moscow , Russia
- European Molecular Biology Laboratory , 69117 Heidelberg , Germany
| | - Tirthendu Sen
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Yulia A Bogdanova
- Institute of Bioorganic Chemistry , Russian Academy of Sciences , Miklukho-Maklaya 16/10 , 117997 Moscow , Russia
| | - Alexander Yu Smirnov
- Institute of Bioorganic Chemistry , Russian Academy of Sciences , Miklukho-Maklaya 16/10 , 117997 Moscow , Russia
| | - Nadezhda S Baleeva
- Institute of Bioorganic Chemistry , Russian Academy of Sciences , Miklukho-Maklaya 16/10 , 117997 Moscow , Russia
| | - Anna I Krylov
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Mikhail S Baranov
- Institute of Bioorganic Chemistry , Russian Academy of Sciences , Miklukho-Maklaya 16/10 , 117997 Moscow , Russia
- Pirogov Russian National Research Medical University , Ostrovitianov 1 , 117997 Moscow , Russia
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13
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Baleeva NS, Tsarkova AS, Baranov MS. Conformationally locked chromophores of CFP and Sirius protein. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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14
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Gutiérrez S, Martínez-López D, Morón M, Sucunza D, Sampedro D, Domingo A, Salgado A, Vaquero JJ. Highly Fluorescent Green Fluorescent Protein Chromophore Analogues Made by Decorating the Imidazolone Ring. Chemistry 2015; 21:18758-63. [DOI: 10.1002/chem.201502929] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Indexed: 11/09/2022]
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15
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Walker CL, Lukyanov KA, Yampolsky IV, Mishin AS, Bommarius AS, Duraj-Thatte AM, Azizi B, Tolbert LM, Solntsev KM. Fluorescence imaging using synthetic GFP chromophores. Curr Opin Chem Biol 2015; 27:64-74. [DOI: 10.1016/j.cbpa.2015.06.002] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 05/21/2015] [Accepted: 06/05/2015] [Indexed: 01/22/2023]
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16
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Muselli M, Baudequin C, Hoarau C, Bischoff L. Pd-Catalyzed direct C–H functionalization of imidazolones with aryl- and alkenyl halides. Chem Commun (Camb) 2015; 51:745-8. [DOI: 10.1039/c4cc07917e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Direct C–H arylation and alkenylation of 4,4′-dialkylimidazolones with a broad range of halides under palladium and copper catalysis have been developed.
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Affiliation(s)
- Mickaël Muselli
- Mickaël Muselli
- Christine Baudequin
- Christophe Hoarau
- Laurent Bischoff Normandie Univ
- COBRA
| | - Christine Baudequin
- Mickaël Muselli
- Christine Baudequin
- Christophe Hoarau
- Laurent Bischoff Normandie Univ
- COBRA
| | - Christophe Hoarau
- Mickaël Muselli
- Christine Baudequin
- Christophe Hoarau
- Laurent Bischoff Normandie Univ
- COBRA
| | - Laurent Bischoff
- Mickaël Muselli
- Christine Baudequin
- Christophe Hoarau
- Laurent Bischoff Normandie Univ
- COBRA
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17
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Baranov MS, Fedyakina IT, Shchelkanov MY, Yampolsky IV. Ring-expanding rearrangement of 2-acyl-5-arylidene-3,5-dihydro-4H-imidazol-4-ones in synthesis of flutimide analogs. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Fang X, Wang Y, Wang D, Zhao G, Zhang W, Ren A, Wang H, Xu J, Gao BR, Yang W. Synthesized Blue Fluorescent Protein Analogue with Tunable Colors from Excited-State Intramolecular Proton Transfer through an N-H···N Hydrogen Bond. J Phys Chem Lett 2014; 5:92-98. [PMID: 26276186 DOI: 10.1021/jz402280w] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A synthesized blue fluorescent protein (BFP) chromophore analogue 2-BFP ((4Z)-4-[(1H-imidazol-2-yl)methylene]-1-methyl-2-phenyl-1H-imidazol-5(4H)-one) displays dual fluorescent emission that arises from the same Z-isomer. The larger Stokes shift emission is a result of excited-state intramolecular proton transfer (ESIPT) mediated by an N-H···N type of hydrogen bond. Compared to other green fluorescent protein (GFP) analogues with ESIPT such as o-HBDI, 2-BFP possesses greatly enhanced quantum yields and much slower proton-transfer rates. In addition, fluorescence up-conversion experiments revealed two rising components of lifetime for the tautomer formation of 2-BFP. The results imply that the relaxation of the N* state in 2-BFP triggers the proton transfer of the molecule. The weaker photoacidity of N-H is proposed to be crucial for these photophysical and photochemical properties. Finally, the ESIPT process in 2-BFP is inhibited in protic solvents (MeOH) or by the formation of metal-chelate complexes, providing insights for further developments and applications of ESIPT molecules.
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Affiliation(s)
- Xinxiu Fang
- †The State Key Laboratory of Electroanalytic Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | | | | | - Guiyan Zhao
- †The State Key Laboratory of Electroanalytic Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Wenwen Zhang
- †The State Key Laboratory of Electroanalytic Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | | | | | - Jingwei Xu
- †The State Key Laboratory of Electroanalytic Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | | | - Wei Yang
- †The State Key Laboratory of Electroanalytic Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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