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Armbruster A, Mohamed AM, Phan HT, Weber W. Lighting the way: recent developments and applications in molecular optogenetics. Curr Opin Biotechnol 2024; 87:103126. [PMID: 38554641 DOI: 10.1016/j.copbio.2024.103126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/27/2024] [Accepted: 03/08/2024] [Indexed: 04/02/2024]
Abstract
Molecular optogenetics utilizes genetically encoded, light-responsive protein switches to control the function of molecular processes. Over the last two years, there have been notable advances in the development of novel optogenetic switches, their utilization in elucidating intricate signaling pathways, and their progress toward practical applications in biotechnological processes, material sciences, and therapeutic applications. In this review, we discuss these areas, offer insights into recent developments, and contemplate future directions.
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Affiliation(s)
- Anja Armbruster
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany; CIBSS - Centre for Integrative Biological Signalling Studies, University of Freiburg, Schänzlestr. 18, 79104 Freiburg, Germany; Faculty of Biology, University of Freiburg, Schänzlestr. 1, 79104 Freiburg, Germany
| | - Asim Me Mohamed
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
| | - Hoang T Phan
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
| | - Wilfried Weber
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany; CIBSS - Centre for Integrative Biological Signalling Studies, University of Freiburg, Schänzlestr. 18, 79104 Freiburg, Germany; Saarland University, Department of Materials Science and Engineering, Campus D2 2, 66123 Saarbrücken, Germany.
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Zhou C, He H, Chen X. Photoactivatable Nanobody Conjugate Dimerizer Temporally Resolves Tiam1-Rac1 Signaling Axis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307549. [PMID: 38225743 PMCID: PMC10953561 DOI: 10.1002/advs.202307549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/07/2023] [Indexed: 01/17/2024]
Abstract
The precise spatiotemporal dynamics of protein activities play a crucial role in cell signaling pathways. To control cellular functions in a spatiotemporal manner, a powerful method called photoactivatable chemically induced dimerization (pCID) is used. In this study, photoactivatable nanobody conjugate inducers of dimerization (PANCIDs) is introduced, which combine pCID with nanobody technology. A PANCID consists of a nanobody module that directly binds to an antigenic target, a photocaged small molecule ligand, and a cyclic decaarginine (cR10 *) cell-penetrating peptide (CPP) for efficient nonendocytic intracellular delivery. Therefore, PANCID photodimerizers also benefit from nanobodies, such as their high affinities (in the nm or pm range), specificities, and ability to modulate endogenous proteins. Additionally it is demonstrated that the nanobody moiety can be easily replaced with alternative ones, expanding the potential applications. By using PANCIDs, the dynamics of the Tiam1-Rac1 signaling cascade is investigated and made an interesting finding. It is found that Rac1 and Tiam1 exhibit distinct behaviors in this axis, acting as time-resolved "molecular oscillators" that transit between different functions in the signaling cascade when activated either slowly or rapidly.
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Affiliation(s)
- Chengjian Zhou
- Laboratory of Chemical Biology and Frontier BiotechnologiesThe HIT Center for Life Sciences (HCLS)Harbin Institute of TechnologyHarbin150001P. R. China
- School of Life Science and TechnologyHarbin Institute of TechnologyHarbin150001P. R. China
| | - Huiping He
- Laboratory of Chemical Biology and Frontier BiotechnologiesThe HIT Center for Life Sciences (HCLS)Harbin Institute of TechnologyHarbin150001P. R. China
- School of Life Science and TechnologyHarbin Institute of TechnologyHarbin150001P. R. China
| | - Xi Chen
- Laboratory of Chemical Biology and Frontier BiotechnologiesThe HIT Center for Life Sciences (HCLS)Harbin Institute of TechnologyHarbin150001P. R. China
- School of Life Science and TechnologyHarbin Institute of TechnologyHarbin150001P. R. China
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Fenelon KD, Krause J, Koromila T. Opticool: Cutting-edge transgenic optical tools. PLoS Genet 2024; 20:e1011208. [PMID: 38517915 PMCID: PMC10959397 DOI: 10.1371/journal.pgen.1011208] [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] [Indexed: 03/24/2024] Open
Abstract
Only a few short decades have passed since the sequencing of GFP, yet the modern repertoire of transgenically encoded optical tools implies an exponential proliferation of ever improving constructions to interrogate the subcellular environment. A myriad of tags for labeling proteins, RNA, or DNA have arisen in the last few decades, facilitating unprecedented visualization of subcellular components and processes. Development of a broad array of modern genetically encoded sensors allows real-time, in vivo detection of molecule levels, pH, forces, enzyme activity, and other subcellular and extracellular phenomena in ever expanding contexts. Optogenetic, genetically encoded optically controlled manipulation systems have gained traction in the biological research community and facilitate single-cell, real-time modulation of protein function in vivo in ever broadening, novel applications. While this field continues to explosively expand, references are needed to assist scientists seeking to use and improve these transgenic devices in new and exciting ways to interrogate development and disease. In this review, we endeavor to highlight the state and trajectory of the field of in vivo transgenic optical tools.
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Affiliation(s)
- Kelli D. Fenelon
- Department of Biology, University of Texas at Arlington, Arlington, Texas, United States of America
| | - Julia Krause
- Department of Biology, University of Texas at Arlington, Arlington, Texas, United States of America
| | - Theodora Koromila
- Department of Biology, University of Texas at Arlington, Arlington, Texas, United States of America
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Takeda Y, Ohtsu I, Suzuki T, Nakasone Y, Fushimi K, Ikeuchi M, Terazima M, Dohra H, Narikawa R. Conformational change in an engineered biliverdin-binding cyanobacteriochrome during the photoconversion process. Arch Biochem Biophys 2023; 745:109715. [PMID: 37549803 DOI: 10.1016/j.abb.2023.109715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 08/02/2023] [Accepted: 08/05/2023] [Indexed: 08/09/2023]
Abstract
Cyanobacteriochromes (CBCRs) derived from cyanobacteria are linear-tetrapyrrole-binding photoreceptors related to the canonical red/far-red reversible phytochrome photoreceptors. CBCRs contain chromophore-binding cGMP-specific phosphodiesterase/adenylate cyclase/FhlA (GAF) domains that are highly diverse in their primary sequences and are categorized into many subfamilies. Among this repertoire, the biliverdin (BV)-binding CBCR GAF domains receive considerable attention for their in vivo optogenetic and bioimaging applications because BV is a mammalian intrinsic chromophore and can absorb far-red light that penetrates deep into the mammalian body. The typical BV-binding CBCR GAF domain exhibits reversible photoconversion between far-red-absorbing dark-adapted and orange-absorbing photoproduct states. Herein, we applied various biochemical and spectral studies to identify the details of the conformational change during this photoconversion process. No oligomeric state change was observed, whereas the surface charge would change with a modification of the α-helix structures during the photoconversion process. Combinatorial analysis using partial protease digestion and mass spectrometry identified the region where the conformational change occurred. These results provide clues for the future development of optogenetic tools.
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Affiliation(s)
- Yuka Takeda
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga, Shizuoka, 422-8529, Japan
| | - Itsuki Ohtsu
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga, Shizuoka, 422-8529, Japan
| | - Takahisa Suzuki
- Graduate School of Biological Sciences, Faculty of Science, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo, 192-0397, Japan
| | - Yusuke Nakasone
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
| | - Keiji Fushimi
- Graduate School of Science, Technology and Innovation, Kobe University, Hyogo, 657-0013, Japan
| | - Masahiko Ikeuchi
- Graduate School of Biological Sciences, Faculty of Science, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo, 192-0397, Japan
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
| | - Hideo Dohra
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga, Shizuoka, 422-8529, Japan; Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga, Shizuoka, 422-8529, Japan
| | - Rei Narikawa
- Graduate School of Biological Sciences, Faculty of Science, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo, 192-0397, Japan.
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Controlling cellular activities with light. Nat Methods 2023; 20:357-358. [PMID: 36823334 DOI: 10.1038/s41592-022-01745-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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