1
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Li L, Han J, Lo HYG, Tam WWL, Jia H, Tse ECM, Taliaferro JM, Li Y. Symmetry-breaking malachite green as a near-infrared light-activated fluorogenic photosensitizer for RNA proximity labeling. Nucleic Acids Res 2024; 52:e36. [PMID: 38407347 DOI: 10.1093/nar/gkae125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/17/2024] [Accepted: 02/08/2024] [Indexed: 02/27/2024] Open
Abstract
Cellular RNA is asymmetrically distributed in cells and the regulation of RNA localization is crucial for proper cellular functions. However, limited chemical tools are available to capture dynamic RNA localization in complex biological systems with high spatiotemporal resolution. Here, we developed a new method for RNA proximity labeling activated by near-infrared (NIR) light, which holds the potential for deep penetration. Our method, termed FAP-seq, utilizes a genetically encoded fluorogen activating protein (FAP) that selectively binds to a set of substrates known as malachite green (MG). FAP binding restricts the rotation of MG and rapidly activates its fluorescence in a wash-free manner. By introducing a monoiodo modification to MG, we created a photosensitizer (MG-HI) with the highest singlet oxygen generation ability among various MG derivatives, enabling both protein and RNA proximity labeling in live cells. New insights are provided in the transcriptome analysis with FAP-seq, while a deeper understanding of the symmetry-breaking structural arrangement of FAP-MG-HI was obtained through molecular dynamics simulations. Overall, our wash-free and NIR light-inducible RNA proximity labeling method (FAP-seq) offers a powerful and versatile approach for investigating complex mechanisms underlying RNA-related biological processes.
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Affiliation(s)
- Lan Li
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
| | - Jinghua Han
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
| | - Hei-Yong G Lo
- Department of Biochemistry and Molecular Genetics, RNA Bioscience Initiative, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Winnie Wai Ling Tam
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, New Territories, Hong Kong 999077, China
| | - Han Jia
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
| | - Edmund Chun Ming Tse
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, New Territories, Hong Kong 999077, China
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong, Hong Kong 999077, China
| | - J Matthew Taliaferro
- Department of Biochemistry and Molecular Genetics, RNA Bioscience Initiative, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Ying Li
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, New Territories, Hong Kong 999077, China
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2
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Shi Y, Bashian EE, Hou Y, Wu P. Chemical immunology: Recent advances in tool development and applications. Cell Chem Biol 2024; 31:S2451-9456(24)00080-1. [PMID: 38508196 DOI: 10.1016/j.chembiol.2024.02.006] [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: 09/01/2023] [Revised: 02/01/2024] [Accepted: 02/22/2024] [Indexed: 03/22/2024]
Abstract
Immunology was one of the first biological fields to embrace chemical approaches. The development of new chemical approaches and techniques has provided immunologists with an impressive arsenal of tools to address challenges once considered insurmountable. This review focuses on advances at the interface of chemistry and immunobiology over the past two decades that have not only opened new avenues in basic immunological research, but also revolutionized drug development for the treatment of cancer and autoimmune diseases. These include chemical approaches to understand and manipulate antigen presentation and the T cell priming process, to facilitate immune cell trafficking and regulate immune cell functions, and therapeutic applications of chemical approaches to disease control and treatment.
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Affiliation(s)
- Yujie Shi
- Department of Molecular and Cellular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Eleanor E Bashian
- Department of Molecular and Cellular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Yingqin Hou
- Department of Molecular and Cellular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Peng Wu
- Department of Molecular and Cellular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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3
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Liang J, Han J, Zhuang Y, Chen G, Li Y. Mitochondria-Associated Transcriptome Profiling via Localizable Aggregation-Induced Emission Photosensitizers in Live Cells. ACS Chem Biol 2024; 19:419-427. [PMID: 38264802 DOI: 10.1021/acschembio.3c00617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
In recent decades, there has been increasing interest in studying mitochondria through transcriptomic research. Various exogenous fusion protein-based proximity labeling methods have been reported that focus on the site of one particular protein/peptide and might also influence the corresponding localization or interactome. To enable unbiased and high spatial-resolution profiling of mitochondria-associated transcriptomes in live cells, a flexible RNA proximity labeling approach was developed using aggregation-induced emission (AIE) type photosensitizers (PSs) that possess great mitochondria-targeting capabilities. Their accumulation in an enclosed mitochondrial environment tends to enhance the fluorescence emission and reactive oxygen species generation. By comparing the in vitro optical properties, photosensitization processes, as well as the in cellulo mitochondrial specificity and RNA labeling performance of four AIE PSs, high-throughput sequencing analysis was conducted using TFPy-mediated RNA proximity labeling in live HeLa cells. This approach successfully captured a comprehensive list of transcripts, including mitochondria-encoded RNAs, as well as some nuclear-derived RNAs located at the outer mitochondrial membrane and interacting organelles. This small molecule-based proximity labeling method bypasses complex genetic manipulation and transfection steps, making it readily applicable for diverse research purposes.
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Affiliation(s)
- Jiying Liang
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
| | - Jinghua Han
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
| | - Yuan Zhuang
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
- Hong Kong Quantum AI Lab Limited, Hong Kong 999077, China
| | - GuanHua Chen
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
- Hong Kong Quantum AI Lab Limited, Hong Kong 999077, China
| | - Ying Li
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, New Territories, Hong Kong 999077, China
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4
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Liang J, Han J, Gao X, Jia H, Li R, Tse ECM, Li Y. Clickable APEX2 Probes for Enhanced RNA Proximity Labeling in Live Cells. Anal Chem 2024; 96:685-693. [PMID: 38099807 DOI: 10.1021/acs.analchem.3c03614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
Although APEX2-mediated proximity labeling has been extensively implemented for studying RNA subcellular localization in live cells, the biotin-phenoxyl radical used for labeling RNAs has a relatively low efficiency, which can limit its compatibility with other profiling methods. Herein, a set of phenol derivatives were designed as APEX2 probes through balancing reactivity, hydrophilicity, and lipophilicity. Among these derivatives, Ph_N3 exhibited reliable labeling ability and enabled two biotinylation routes for downstream analysis. As a proof of concept, we used APEX2/Ph_N3 labeling with high-throughput sequencing analysis to examine the transcriptomes in the mitochondrial matrix, demonstrating high sensitivity and specificity. To further expand the utility of Ph_N3, we employed mechanistically orthogonal APEX2 and singlet oxygen (1O2)-mediated strategies for dual location labeling in live cells. Specifically, DRAQ5, a DNA-intercalating photosensitizer, was applied for nucleus-restricted 1O2 labeling. We validated the orthogonality of APEX2/Ph_N3 and DRAQ5-1O2 at the imaging level, providing an attractive and feasible approach for future studies of RNA translocation in live cells.
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Affiliation(s)
- Jiying Liang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Jinghua Han
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Xutao Gao
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Han Jia
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Ran Li
- Academy for Advanced Interdisciplinary Studies, PKU-Tsinghua Center for Life Science, Peking University, Beijing 100871, China
| | - Edmund C M Tse
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, New Territories, Hong Kong, China
| | - Ying Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, New Territories, Hong Kong, China
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5
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Deng Z, Li L, Jia H, Li NF, He J, Li MD, Phillips DL, Li Y. Insights into the Photodynamics of Fluorescence Emission and Singlet Oxygen Generation of Fluorogen Activating Protein-Malachite Green Systems. Chemistry 2023; 29:e202203684. [PMID: 36453719 DOI: 10.1002/chem.202203684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022]
Abstract
The self-assembled fluorogen activating protein (FAP)-malachite green (MG) complex is a well-established protein-ligand system, which can realize binding-caused fluorescence turn-on of MG and singlet oxygen (1 O2 ) generation by MG iodination. To clarify the mechanism of fluorescence activation and 1 O2 generation, the photodynamics of different halogen-substituted MG derivatives and their corresponding FAP-MG complexes were studied by femtosecond transient absorption spectroscopy and theoretical computations. The results show that the rotation of MG is restricted by FAP binding, which prevents a rapid internal conversion to allow a longer lifetime for the excited MG to undergo fluorescence emission and intersystem crossing. Moreover, these FAP-MG complexes exhibit notably varied fluorescence quantum yields (ΦFL ) and 1 O2 yields. The study on the decay pathways indicates that such an anti-heavy atom effect predominately stems from the lifetimes of the excited-state species. The photodynamic mechanism study here will lead to more advanced FAP-MG systems with high spatiotemporal resolution.
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Affiliation(s)
- Ziqi Deng
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Lan Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Han Jia
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Nga-Fong Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Jiaxing He
- Department of Chemistry and Key Laboratory for Preparation and, Application of Ordered Structure Materials of Guangdong Providence, Shantou University, Shantou, 515063, Guangdong, China
| | - Ming-De Li
- Department of Chemistry and Key Laboratory for Preparation and, Application of Ordered Structure Materials of Guangdong Providence, Shantou University, Shantou, 515063, Guangdong, China
| | - David Lee Phillips
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Ying Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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6
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Wang H, Wang Z, Gao H, Liu J, Qiao Z, Zhao B, Liang Z, Jiang B, Zhang L, Zhang Y. A photo-oxidation driven proximity labeling strategy enables profiling of mitochondrial proteome dynamics in living cells. Chem Sci 2022; 13:11943-11950. [PMID: 36320915 PMCID: PMC9580500 DOI: 10.1039/d2sc04087e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/27/2022] [Indexed: 07/21/2023] Open
Abstract
Mapping the proteomic landscape of mitochondria with spatiotemporal precision plays a pivotal role in elucidating the delicate biological functions and complex relationship with other organelles in a variety of dynamic physiological processes which necessitates efficient and controllable chemical tools. We herein report a photo-oxidation driven proximity labeling strategy to profile the mitochondrial proteome by light dependence in living cells with high spatiotemporal resolution. Taking advantage of organelle-localizable organic photoactivated probes generating reactive species and nucleophilic substrates for proximal protein oxidation and trapping, mitochondrial proteins were selectively labeled by spatially limited reactions in their native environment. Integration of photo-oxidation driven proximity labeling and quantitative proteomics facilitated the plotting of the mitochondrial proteome in which up to 310 mitochondrial proteins were identified with a specificity of 64% in HeLa cells. Furthermore, mitochondrial proteome dynamics was deciphered in drug resistant Huh7 and LPS stimulated HMC3 cells which were hard-to-transfect. A number of differential proteins were quantified which were intimately linked to critical processes and provided insights into the related molecular mechanisms of drug resistance and neuroinflammation in the perspective of mitochondria. The photo-oxidation driven proximity labeling strategy offers solid technical support to a highly precise proteomic platform in time and finer space for more knowledge of subcellular biology.
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Affiliation(s)
- He Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Zhiting Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hang Gao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jianhui Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Zichun Qiao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Baofeng Zhao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Zhen Liang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Bo Jiang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Lihua Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
| | - Yukui Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 China
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7
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Tsushima M, Sato S, Miura K, Niwa T, Taguchi H, Nakamura H. Intracellular photocatalytic-proximity labeling for profiling protein-protein interactions in microenvironments. Chem Commun (Camb) 2022; 58:1926-1929. [PMID: 35040832 DOI: 10.1039/d1cc05764b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Intracellular photocatalytic-proximity labeling (iPPL) was developed to profile protein-protein interactions in the microenvironment of living cells. Acriflavine was found to be an efficient cell-membrane-permeable photocatalyst for introduction into the genetically HaloTag-fused protein of interest for iPPL with a radical labeling reagent, 1-methyl-4-arylurazole. iPPL was applied to the histone-associated protein H2B in HaloTag-H2B expressing HEK293FT cells. The proteins directly interacting with histones and RNA-binding proteins were selectively labeled in the intracellular environment, suggesting that the iPPL method has a smaller labeling radius (CA. 6 nm) than the BioID and APEX methods.
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Affiliation(s)
- Michihiko Tsushima
- School of Life Science and Engineering, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Shinichi Sato
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
| | - Kazuki Miura
- School of Life Science and Engineering, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan.,Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan.
| | - Tatsuya Niwa
- School of Life Science and Engineering, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan.,Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
| | - Hideki Taguchi
- School of Life Science and Engineering, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan.,Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
| | - Hiroyuki Nakamura
- School of Life Science and Engineering, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan.,Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan.
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8
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Toh K. Proximity-dependent Labeling by Using Energy Transfer Processes. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kohei Toh
- Graduate School of Medicine, Kyoto University
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9
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Liu W, Watson EE, Winssinger N. Photocatalysis in Chemical Biology: Extending the Scope of Optochemical Control and Towards New Frontiers in Semisynthetic Bioconjugates and Biocatalysis. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100179] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Weilong Liu
- Department of Organic Chemistry NCCR Chemical Biology Faculty of Science University of Geneva 30 quai Ernest Ansermet CH-1211 Geneva Switzerland
| | - Emma E. Watson
- Department of Organic Chemistry NCCR Chemical Biology Faculty of Science University of Geneva 30 quai Ernest Ansermet CH-1211 Geneva Switzerland
| | - Nicolas Winssinger
- Department of Organic Chemistry NCCR Chemical Biology Faculty of Science University of Geneva 30 quai Ernest Ansermet CH-1211 Geneva Switzerland
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10
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Liang J, Jia H, Li L, Li X, Li Y. β-Difluoroalkylamine as a Motif for Singlet Oxygen-Mediated Proximity Labeling in Living Cells. Org Lett 2021; 23:4640-4644. [PMID: 34076445 DOI: 10.1021/acs.orglett.1c01377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We designed β-difluoroalkylamine to capture RNAs and proteins with high tempospatial resolution via proximity labeling mediated by photoinduced singlet oxygen. The appended azide group allows for RNA biotinylation and downstream analysis through both SPAAC and CuAAC. In particular, the β-difluoroalkylazide motif enjoys an enhanced CuAAC reaction rate, thus preserving good RNA integrity.
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Affiliation(s)
- Jiying Liang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, HK SAR, China
| | - Han Jia
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, HK SAR, China
| | - Lan Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, HK SAR, China
| | - Xiang Li
- Zhongnan Hospital, Wuhan University, Wuhan 430071, China
| | - Ying Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, HK SAR, China
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11
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Shiraiwa K, Cheng R, Nonaka H, Tamura T, Hamachi I. Chemical Tools for Endogenous Protein Labeling and Profiling. Cell Chem Biol 2020; 27:970-985. [DOI: 10.1016/j.chembiol.2020.06.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/29/2020] [Accepted: 06/25/2020] [Indexed: 12/31/2022]
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12
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Tamura T, Takato M, Shiono K, Hamachi I. Development of a Photoactivatable Proximity Labeling Method for the Identification of Nuclear Proteins. CHEM LETT 2020. [DOI: 10.1246/cl.190804] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tomonori Tamura
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mikiko Takato
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Keiya Shiono
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Itaru Hamachi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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