1
|
George T, Grant T, Munhoz IS, Do T, Masuda JD. Group 11 complexes of a bulky triazene ligand. Dalton Trans 2024; 53:13107-13118. [PMID: 39041247 DOI: 10.1039/d4dt01561d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
A new triazene ligand was prepared by the reaction of the bulky aryl azide, TerMesN3, (2,6-bis(2,4,6-trimethylphenyl)phenyl azide), with the bulky N-heterocyclic carbene (NHC), SIPr (N,N'-2,6-bis(diisopropylphenyl)-3,4-dihydroimidazol-2-ylidene). The steric bulk of these two groups leads to perpendicular bonding of the NHC-N3 plane and the aryl group which provides immense steric crowding around the triazene core. The corresponding π-conjugated triazene ligand was utilized as a neutral, monodentate ligand which results in monomeric Cu(I)Cl, Ag(I)OTf, and Au(I)Cl complexes. Instability of the π-conjugated triazene Au(I)Cl complex was observed, even under inert conditions. When dissolved and photolyzed in THF with workup in isopropanol, the compound decomposes forming [(SIPrNH)2Au(I)][Au(I)Cl2] a relatively stable compound to light, moisture, and water - alongside the formation of gold nanoparticles which were characterized using scanning electron microscopy with energy dispersive spectroscopy.
Collapse
Affiliation(s)
- Tanner George
- Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia, Canada B3H 3C3.
| | - Tamika Grant
- Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia, Canada B3H 3C3.
| | | | - Thai Do
- Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia, Canada B3H 3C3.
| | - Jason D Masuda
- Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia, Canada B3H 3C3.
| |
Collapse
|
2
|
Yates NDJ, Hatton NE, Fascione MA, Parkin A. Site-Selective Aryl Diazonium Installation onto Protein Surfaces at Neutral pH using a Maleimide-Functionalized Triazabutadiene. Chembiochem 2023; 24:e202300313. [PMID: 37311168 DOI: 10.1002/cbic.202300313] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/01/2023] [Accepted: 06/08/2023] [Indexed: 06/15/2023]
Abstract
Aryl diazonium cations are versatile bioconjugation reagents due to their reactivity towards electron-rich aryl residues and secondary amines, but historically their usage has been hampered by both their short lifespan in aqueous solution and the harsh conditions required to generate them in situ. Triazabutadienes address many of these issues as they are stable enough to endure multiple-step chemical syntheses and can persist for several hours in aqueous solution, yet upon UV-exposure rapidly release aryl diazonium cations under biologically-relevant conditions. This paper describes the synthesis of a novel maleimide-functionalized triazabutadiene suitable for site-selectively installing aryl diazonium cations into proteins at neutral pH; we show reaction with this molecule and a surface-cysteine of a thiol disulfide oxidoreductase. Through photoactivation of the site-selectively installed triazabutadiene motifs, we generate aryl diazonium functionality, which we further derivatize via azo-bond formation to electron-rich aryl species, showcasing the potential utility of this strategy for the generation of photoswitches or protein-drug conjugates.
Collapse
Affiliation(s)
- Nicholas D J Yates
- Department of Chemistry, University of York Heslington, York, YO10 5DD, UK
| | - Natasha E Hatton
- Department of Chemistry, University of York Heslington, York, YO10 5DD, UK
| | - Martin A Fascione
- Department of Chemistry, University of York Heslington, York, YO10 5DD, UK
| | - Alison Parkin
- Department of Chemistry, University of York Heslington, York, YO10 5DD, UK
| |
Collapse
|
3
|
Davis GJ, Townsend JA, Morrow MG, Hamie M, Shepard AJ, Hsieh CC, Marty MT, Jewett JC. Protein Modification via Mild Photochemical Isomerization of Triazenes to Release Aryl Diazonium Ions. Bioconjug Chem 2021; 32:2432-2438. [PMID: 34730351 PMCID: PMC8820681 DOI: 10.1021/acs.bioconjchem.1c00459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work describes the development of phenyl diazenyl piperidine triazene derivatives that can be activated to release aryl diazonium ions for labeling of proteins using light. These probes show marked bench stability at room temperature and can be photoisomerized via low-intensity UVA irradiation at physiological pH. Upon isomerization, the triazenes are rendered more basic and readily protonate to release reactive aryl diazonium ions. It was discovered that the intensity and duration of the UV light was essential to the observed diazonium ion reactivity in competition with the traditionally observed photolytic radical pathways. The combination of their synthetic efficiency coupled with their overall stability makes triazenes an attractive candidate for use in bioconjugation applications. Bioorthogonal handles on the triazenes are used to demonstrate the ease by which proteins can be modified.
Collapse
Affiliation(s)
- Garrett J. Davis
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 East University Boulevard, Tucson, Arizona 85721, USA
| | - Julia A. Townsend
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 East University Boulevard, Tucson, Arizona 85721, USA
| | - Madeline G. Morrow
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 East University Boulevard, Tucson, Arizona 85721, USA
| | - Mohamed Hamie
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 East University Boulevard, Tucson, Arizona 85721, USA
| | - Abigail J. Shepard
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 East University Boulevard, Tucson, Arizona 85721, USA
| | - Chih-Chieh Hsieh
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 East University Boulevard, Tucson, Arizona 85721, USA
| | - Michael T. Marty
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 East University Boulevard, Tucson, Arizona 85721, USA
| | - John C. Jewett
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 East University Boulevard, Tucson, Arizona 85721, USA
| |
Collapse
|
4
|
Cheng HB, Zhang S, Qi J, Liang XJ, Yoon J. Advances in Application of Azobenzene as a Trigger in Biomedicine: Molecular Design and Spontaneous Assembly. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007290. [PMID: 34028901 DOI: 10.1002/adma.202007290] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 12/10/2020] [Indexed: 06/12/2023]
Abstract
Azobenzene is a well-known derivative of stimulus-responsive molecular switches and has shown superior performance as a functional material in biomedical applications. The results of multiple studies have led to the development of light/hypoxia-responsive azobenzene for biomedical use. In recent years, long-wavelength-responsive azobenzene has been developed. Matching the longer wavelength absorption and hypoxia-response characteristics of the azobenzene switch unit to the bio-optical window results in a large and effective stimulus response. In addition, azobenzene has been used as a hypoxia-sensitive connector via biological cleavage under appropriate stimulus conditions. This has resulted in on/off state switching of properties such as pharmacology and fluorescence activity. Herein, recent advances in the design and fabrication of azobenzene as a trigger in biomedicine are summarized.
Collapse
Affiliation(s)
- Hong-Bo Cheng
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, 15 North Third Ring Road, Beijing, 100029, P. R. China
| | - Shuchun Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, 15 North Third Ring Road, Beijing, 100029, P. R. China
| | - Ji Qi
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, 15 North Third Ring Road, Beijing, 100029, P. R. China
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, No. 11, First North Road, Zhongguancun, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Korea
| |
Collapse
|
5
|
Heras Martinez HM, Chavez Flores D, Hillesheim PC, Patil S, Bugarin A. Crystal structure and spectroscopic properties of ( E)-1,3-dimethyl-2-[3-(4-nitro-phen-yl)triaz-2-enyl-idene]-2,3-di-hydro-1 H-imidazole. Acta Crystallogr E Crystallogr Commun 2021; 77:130-133. [PMID: 33614140 PMCID: PMC7869543 DOI: 10.1107/s2056989021000426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/12/2021] [Indexed: 11/11/2022]
Abstract
The title compound (E)-1,3-dimethyl-2-[3-(4-nitro-phen-yl)triaz-2-enyl-idene]-2,3-di-hydro-1H-imidazole, C11H12N6O2, has monoclinic (C2/c) symmetry at 100 K. This triazene derivative was synthesized by the coupling reaction of 1,3-di-methyl-imidazolium iodide with 1-azido-4-nitro benzene in the presence of sodium hydride (60% in mineral oil) and characterized by 1H NMR, 13C NMR, IR, mass spectrometry, and single-crystal X-ray diffraction. The mol-ecule consists of six-membered and five-membered rings, which are connected by a triazene moiety (-N=N-N-). In the solid-state, the mol-ecule is found to be planar due to conjugation throughout the mol-ecule. The extended structure shows two layers of mol-ecules, which present weak inter-molecular inter-actions that facilitate the stacked arrangement of the mol-ecules forming the extended structure. Furthermore, there are several weak pseudo-cyclical inter-actions between the nitro oxygen atoms and symmetry-adjacent H atoms, which help to arrange the mol-ecules.
Collapse
Affiliation(s)
- Hector Mario Heras Martinez
- Department of Chemistry & Physics, Florida Gulf Coast University, 10501 FGCU, Boulevard South, Fort Myers, FL 33965, USA
| | - David Chavez Flores
- Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Nuevo Campus Universitario, Circuito Universitario, Chihuahua, Chih., CP 31125, Mexico
| | - Patrick C. Hillesheim
- Department of Chemistry and Physics, Ave Maria University, 5050 Ave Maria Blvd, Ave Maria, FL 34142, USA
| | - Siddappa Patil
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore 562112, India
| | - Alejandro Bugarin
- Department of Chemistry & Physics, Florida Gulf Coast University, 10501 FGCU, Boulevard South, Fort Myers, FL 33965, USA
| |
Collapse
|
6
|
Wijetunge AN, Davis GJ, Shadmehr M, Townsend JA, Marty MT, Jewett JC. Copper-Free Click Enabled Triazabutadiene for Bioorthogonal Protein Functionalization. Bioconjug Chem 2021; 32:254-258. [PMID: 33492934 DOI: 10.1021/acs.bioconjchem.0c00677] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Aryl diazonium ions have long been used in bioconjugation due to their reactivity toward electron-rich aryl residues, such as tyrosine. However, their utility in biological systems has been restricted due to the requirement of harsh conditions for their generation in situ, as well as limited hydrolytic stability. Previous work describing a scaffold known as triazabutadiene (TBD) has shown the ability to protect aryl diazonium ions allowing for increased synthetic utility, as well as triggered release under biologically relevant conditions. Herein, we describe the synthesis and application of a novel TBD, capable of installation of a cyclooctyne on protein surfaces for later use of copper-free click reactions involving functional azides. The probe shows efficient protein labeling across a wide pH range that can be accomplished in a convenient and timely manner. Orthogonality of the cyclooctyne modification was showcased by labeling a model protein in the presence of hen egg proteins, using an azide-containing fluorophore. We further confirmed that the azobenzene modification can be cleaved using sodium dithionite treatment.
Collapse
Affiliation(s)
- Anjalee N Wijetunge
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Garrett J Davis
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Mehrdad Shadmehr
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Julia A Townsend
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Michael T Marty
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - John C Jewett
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| |
Collapse
|
7
|
Kennedy ADW, Sandler I, Andréasson J, Ho J, Beves JE. Visible‐Light Photoswitching by Azobenzazoles. Chemistry 2020; 26:1103-1110. [DOI: 10.1002/chem.201904309] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Indexed: 11/09/2022]
Affiliation(s)
| | - Isolde Sandler
- School of Chemistry UNSW Sydney Sydney NSW 2052 Australia
| | - Joakim Andréasson
- Department of Chemistry and Chemical Engineering Chalmers University of Technology 412 96 Göteborg Sweden
| | - Junming Ho
- School of Chemistry UNSW Sydney Sydney NSW 2052 Australia
| | | |
Collapse
|
8
|
Landman IR, Suleymanov AA, Fadaei-Tirani F, Scopelliti R, Chadwick FM, Severin K. Brønsted and Lewis acid adducts of triazenes. Dalton Trans 2020; 49:2317-2322. [DOI: 10.1039/d0dt00049c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Spectroscopy and crystallographic data show that triazenes are protonated at N1 position.
Collapse
Affiliation(s)
- Iris R. Landman
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Abdusalom A. Suleymanov
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Farzaneh Fadaei-Tirani
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - F. Mark Chadwick
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| |
Collapse
|
9
|
Barragan E, Noonikara Poyil A, Yang CH, Wang H, Bugarin A. Metal-free cross-coupling of π-conjugated triazenes with unactivated arenes via photoactivation. Org Chem Front 2019. [DOI: 10.1039/c8qo00938d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free synthesis of biaryl compounds was achieved under photo-irradiation, which represents a milder alternative for cross-coupling reactions.
Collapse
Affiliation(s)
- Enrique Barragan
- Department of Chemistry and Biochemistry
- University of Texas at Arlington
- Arlington
- USA
| | | | - Chou-Hsun Yang
- Department of Chemistry
- University of Colorado Denver
- Denver
- USA
| | - Haobin Wang
- Department of Chemistry
- University of Colorado Denver
- Denver
- USA
| | - Alejandro Bugarin
- Department of Chemistry and Biochemistry
- University of Texas at Arlington
- Arlington
- USA
| |
Collapse
|
10
|
Addy PS, Erickson SB, Italia JS, Chatterjee A. Labeling Proteins at Site-Specifically Incorporated 5-Hydroxytryptophan Residues Using a Chemoselective Rapid Azo-Coupling Reaction. Methods Mol Biol 2019; 2033:239-251. [PMID: 31332758 DOI: 10.1007/978-1-4939-9654-4_16] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Chemoselective protein labeling is a valuable tool in the arsenal of modern chemical biology. The unnatural amino acid mutagenesis technology provides a powerful way to site-specifically introduce nonnatural chemical functionalities into recombinant proteins, which can be subsequently functionalized in a chemoselective manner. Even though several strategies currently exist to selectively label recombinant proteins in this manner, there is considerable interest for the development of additional chemoselective reactions that are fast, catalyst-free, use readily available reagents, and are compatible with existing conjugation chemistries. Here we describe a method to express recombinant proteins in E. coli site-specifically incorporating 5-hydroxytryptophan, followed by the chemoselective labeling of this residue using a chemoselective rapid azo-coupling reaction.
Collapse
Affiliation(s)
| | | | - James S Italia
- Department of Chemistry, Boston College, Chestnut Hill, MA, USA
| | | |
Collapse
|
11
|
Sengupta S, Chandrasekaran S. Modifications of amino acids using arenediazonium salts. Org Biomol Chem 2019; 17:8308-8329. [DOI: 10.1039/c9ob01471c] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Aryl transfer reactions from arenediazonium salts have started to make their impact in chemical biology with initial forays in the arena of arylative modifications and bio-conjugations of amino acids, peptides and proteins.
Collapse
Affiliation(s)
- Saumitra Sengupta
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore
- India
| | | |
Collapse
|
12
|
Shadmehr M, Davis GJ, Mehari BT, Jensen SM, Jewett JC. Coumarin Triazabutadienes for Fluorescent Labeling of Proteins. Chembiochem 2018; 19:2550-2552. [PMID: 30341988 PMCID: PMC6457986 DOI: 10.1002/cbic.201800599] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Indexed: 11/06/2022]
Abstract
The use of small-molecule fluorophores to label proteins with minimal perturbation in response to an external stimulus is a powerful tool to probe chemical and biochemical environments. Herein, we describe the use of a coumarin-modified triazabutadiene that can deliver aryl diazonium ions to fluorescently label proteins by tyrosine-selective modification. The labeling can be triggered by low-pH-induced liberation of the diazonium species, thus making the fluorophore especially useful in labeling biochemical surroundings such as those found within the late endosome. Additionally, we show that a variety of coumarin triazabutadienes might also be prone to releasing their diazonium cargo after irradiation with UV light.
Collapse
Affiliation(s)
- Mehrdad Shadmehr
- Chemistry and Biochemistry, University of Arizona, 1306 E. University Boulevard, Tucson, AZ, 85721, USA
| | - Garrett J Davis
- Chemistry and Biochemistry, University of Arizona, 1306 E. University Boulevard, Tucson, AZ, 85721, USA
| | - Bereketab T Mehari
- Chemistry and Biochemistry, University of Arizona, 1306 E. University Boulevard, Tucson, AZ, 85721, USA
| | - Stephanie M Jensen
- Chemistry and Biochemistry, University of Arizona, 1306 E. University Boulevard, Tucson, AZ, 85721, USA
| | - John C Jewett
- Chemistry and Biochemistry, University of Arizona, 1306 E. University Boulevard, Tucson, AZ, 85721, USA
| |
Collapse
|
13
|
Arif T, Cazorla C, Bogliotti N, Saleh N, Blanchard F, Gandon V, Métivier R, Xie J, Voituriez A, Marinetti A. Bimetallic gold(i) complexes of photoswitchable phosphines: synthesis and uses in cooperative catalysis. Catal Sci Technol 2018. [DOI: 10.1039/c7cy01614j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first photoswitchable bimetallic gold catalysts based on an azobenzene backbone have been synthesized and their catalytic properties have been investigated.
Collapse
|
14
|
Addy PS, Erickson SB, Italia JS, Chatterjee A. A Chemoselective Rapid Azo-Coupling Reaction (CRACR) for Unclickable Bioconjugation. J Am Chem Soc 2017; 139:11670-11673. [PMID: 28787141 DOI: 10.1021/jacs.7b05125] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chemoselective modification of complex biomolecules has become a cornerstone of chemical biology. Despite the exciting developments of the past two decades, the demand for new chemoselective reactions with unique abilities, and those compatible with existing chemistries for concurrent multisite-directed labeling, remains high. Here we show that 5-hydroxyindoles exhibit remarkably high reactivity toward aromatic diazonium ions and this reaction can be used to chemoselectively label proteins. We have previously genetically encoded the noncanonical amino acid 5-hydroxytryptophan in both E. coli and eukaryotes, enabling efficient site-specific incorporation of 5-hydroxyindole into virtually any protein. The 5-hydroxytryptophan residue was shown to allow rapid, chemoselective protein modification using the azo-coupling reaction, and the utility of this bioconjugation strategy was further illustrated by generating a functional antibody-fluorophore conjugate. Although the resulting azo-linkage is otherwise stable, we show that it can be efficiently cleaved upon treatment with dithionite. Our work establishes a unique chemoselective "unclickable" bioconjugation strategy to site-specifically modify proteins expressed in both bacteria and eukaryotes.
Collapse
Affiliation(s)
- Partha Sarathi Addy
- Department of Chemistry, Boston College , 2609 Beacon Street, 246B Merkert Chemistry Center, Chestnut Hill, Massachusetts 02467, United States
| | - Sarah B Erickson
- Department of Chemistry, Boston College , 2609 Beacon Street, 246B Merkert Chemistry Center, Chestnut Hill, Massachusetts 02467, United States
| | - James S Italia
- Department of Chemistry, Boston College , 2609 Beacon Street, 246B Merkert Chemistry Center, Chestnut Hill, Massachusetts 02467, United States
| | - Abhishek Chatterjee
- Department of Chemistry, Boston College , 2609 Beacon Street, 246B Merkert Chemistry Center, Chestnut Hill, Massachusetts 02467, United States
| |
Collapse
|
15
|
Xiao H, Ma L, Fang W, Chen X. A pOH Jump Driven by N═N Out-of-Plane Motion in the Photoisomerization of Water-Solvated Triazabutadiene. J Phys Chem A 2017; 121:4939-4947. [DOI: 10.1021/acs.jpca.7b04817] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongmei Xiao
- Key Laboratory of Theoretical
and Computational Photochemistry of Ministry of Education, Department
of Chemistry, Beijing Normal University, Xin-wai-da-jie No. 19, Beijing, 100875, Peoplés Republic of China
| | - Lishuang Ma
- Key Laboratory of Theoretical
and Computational Photochemistry of Ministry of Education, Department
of Chemistry, Beijing Normal University, Xin-wai-da-jie No. 19, Beijing, 100875, Peoplés Republic of China
| | - Weihai Fang
- Key Laboratory of Theoretical
and Computational Photochemistry of Ministry of Education, Department
of Chemistry, Beijing Normal University, Xin-wai-da-jie No. 19, Beijing, 100875, Peoplés Republic of China
| | - Xuebo Chen
- Key Laboratory of Theoretical
and Computational Photochemistry of Ministry of Education, Department
of Chemistry, Beijing Normal University, Xin-wai-da-jie No. 19, Beijing, 100875, Peoplés Republic of China
| |
Collapse
|
16
|
Knyazeva DC, Kimani FW, Blanche JL, Jewett JC. Hexyl triazabutadiene as a potent alkylating agent. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
17
|
Xie Y, Ilic S, Skaro S, Maslak V, Glusac KD. Excited-State Hydroxide Ion Release From a Series of Acridinol Photobases. J Phys Chem A 2017; 121:448-457. [DOI: 10.1021/acs.jpca.6b10980] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Yun Xie
- Department
of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Stefan Ilic
- Department
of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Sanja Skaro
- Faculty
of Chemistry, University of Belgrade, Studentski Trg 12-16, Belgrade 11000, Serbia
| | - Veselin Maslak
- Faculty
of Chemistry, University of Belgrade, Studentski Trg 12-16, Belgrade 11000, Serbia
| | - Ksenija D. Glusac
- Department
of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| |
Collapse
|
18
|
Li S, Feng L, Lu H, Feng S. From LCST to UCST: the phase separation behaviour of thermo-responsive polysiloxanes with the solubility parameters of solvents. NEW J CHEM 2017. [DOI: 10.1039/c6nj03386e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Thermo-responsive polysiloxanes with tunable LCST- and UCST-type phase separation in mixed solvents were synthesised via a facile, highly efficient, catalyst-free aza-Michael addition of poly(aminopropylmethylsiloxane) to N-isopropylacrylamide.
Collapse
Affiliation(s)
- Shusheng Li
- Key Laboratory of Special Functional Aggregated Materials
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
| | - Linglong Feng
- Key Laboratory of Special Functional Aggregated Materials
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
| | - Hang Lu
- Key Laboratory of Special Functional Aggregated Materials
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials
- Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
| |
Collapse
|
19
|
Jensen SM, Kimani FW, Jewett JC. Light-Activated Triazabutadienes for the Modification of a Viral Surface. Chembiochem 2016; 17:2216-2219. [PMID: 27647786 PMCID: PMC5170875 DOI: 10.1002/cbic.201600508] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Indexed: 11/10/2022]
Abstract
Chemical crosslinking is a versatile tool for the examination of biochemical interactions, in particular host-pathogen interactions. We report the critical first step toward the goal of probing these interactions by the synthesis and use of a new heterobifunctional crosslinker containing a triazabutadiene scaffold. The triazabutadiene is stable to protein conjugation and liberates a reactive aryl diazonium species upon irradiation with 350 nm light. We highlight the use of this technology by modifying the surface of several proteins, including the dengue virus envelope protein.
Collapse
Affiliation(s)
- Stephanie M Jensen
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 E University Boulevard, Tucson, AZ, 85721, USA
| | - Flora W Kimani
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 E University Boulevard, Tucson, AZ, 85721, USA
| | - John C Jewett
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 E University Boulevard, Tucson, AZ, 85721, USA
| |
Collapse
|
20
|
Guzman LE, Kimani FW, Jewett JC. Protecting Triazabutadienes To Afford Acid Resistance. Chembiochem 2016; 17:2220-2222. [PMID: 27662242 DOI: 10.1002/cbic.201600517] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Indexed: 11/10/2022]
Abstract
Recent work on triazabutadienes has shown that they have the ability to release aryl diazonium ions under exceptionally mild acidic conditions. There are instances that require that this release be prevented or minimized. Accordingly, a base-labile protection strategy for the triazabutadiene is presented. It affords enhanced synthetic and practical utility of the triazabutadiene. The effects of steric and electronic factors in the rate of removal are discussed, and the triazabutadiene protection is shown to be compatible with the traditional acid-labile protection strategy used in solid phase peptide synthesis.
Collapse
Affiliation(s)
- Lindsay E Guzman
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 E University Boulevard, Tucson, AZ, 85721, USA
| | - Flora W Kimani
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 E University Boulevard, Tucson, AZ, 85721, USA
| | - John C Jewett
- Department of Chemistry and Biochemistry, University of Arizona, Building 41, Room 104, 1306 E University Boulevard, Tucson, AZ, 85721, USA
| |
Collapse
|
21
|
Liu HL, Jiang Y, Hao J, Tang XY, Shi M. A new method to access triazole-fused spiro-guanidines from the reaction of isothiocyanates tethered N-sulfonyl-1,2,3-triazoles and amines. Org Chem Front 2016. [DOI: 10.1039/c6qo00304d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The reaction of isothiocyanate tethered N-sulfonyl-1,2,3-triazoles and amines afforded asymmetrical guanidines in fair to excellent yields through a two-component tandem reaction process.
Collapse
Affiliation(s)
- Hou-Lu Liu
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Yu Jiang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Jian Hao
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Xiang-Ying Tang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| |
Collapse
|
22
|
|