1
|
Bezold F, Scheffer J, Wendering P, Razaghi-Moghadam Z, Trauth J, Pook B, Nußhär H, Hasenjäger S, Nikoloski Z, Essen LO, Taxis C. Optogenetic control of Cdc48 for dynamic metabolic engineering in yeast. Metab Eng 2023; 79:97-107. [PMID: 37422133 DOI: 10.1016/j.ymben.2023.06.013] [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: 02/14/2023] [Revised: 06/25/2023] [Accepted: 06/26/2023] [Indexed: 07/10/2023]
Abstract
Dynamic metabolic engineering is a strategy to switch key metabolic pathways in microbial cell factories from biomass generation to accumulation of target products. Here, we demonstrate that optogenetic intervention in the cell cycle of budding yeast can be used to increase production of valuable chemicals, such as the terpenoid β-carotene or the nucleoside analog cordycepin. We achieved optogenetic cell-cycle arrest in the G2/M phase by controlling activity of the ubiquitin-proteasome system hub Cdc48. To analyze the metabolic capacities in the cell cycle arrested yeast strain, we studied their proteomes by timsTOF mass spectrometry. This revealed widespread, but highly distinct abundance changes of metabolic key enzymes. Integration of the proteomics data in protein-constrained metabolic models demonstrated modulation of fluxes directly associated with terpenoid production as well as metabolic subsystems involved in protein biosynthesis, cell wall synthesis, and cofactor biosynthesis. These results demonstrate that optogenetically triggered cell cycle intervention is an option to increase the yields of compounds synthesized in a cellular factory by reallocation of metabolic resources.
Collapse
Affiliation(s)
- Filipp Bezold
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-University Marburg, 35032, Marburg, Germany
| | - Johannes Scheffer
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-University Marburg, 35032, Marburg, Germany
| | - Philipp Wendering
- Systems Biology and Mathematical Modeling, Max Planck Institute of Molecular Plant Physiology, 14476, Potsdam, Germany; Bioinformatics, Institute of Biochemistry and Biology, University of Potsdam, 14476, Potsdam, Germany
| | - Zahra Razaghi-Moghadam
- Systems Biology and Mathematical Modeling, Max Planck Institute of Molecular Plant Physiology, 14476, Potsdam, Germany; Bioinformatics, Institute of Biochemistry and Biology, University of Potsdam, 14476, Potsdam, Germany
| | - Jonathan Trauth
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-University Marburg, 35032, Marburg, Germany
| | - Bastian Pook
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-University Marburg, 35032, Marburg, Germany
| | - Hagen Nußhär
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-University Marburg, 35032, Marburg, Germany
| | - Sophia Hasenjäger
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-University Marburg, 35032, Marburg, Germany
| | - Zoran Nikoloski
- Systems Biology and Mathematical Modeling, Max Planck Institute of Molecular Plant Physiology, 14476, Potsdam, Germany; Bioinformatics, Institute of Biochemistry and Biology, University of Potsdam, 14476, Potsdam, Germany
| | - Lars-Oliver Essen
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-University Marburg, 35032, Marburg, Germany.
| | - Christof Taxis
- Department of Biology/Genetics, Philipps-University Marburg, 35032, Marburg, Germany; School of Science and Technology, University Siegen, 57076, Siegen, Germany.
| |
Collapse
|
2
|
Zhu L, Su Y, Ma Z, Guo L, Yang S, Yu H. Comparative proteomic analysis reveals differential protein expression of Hypsizygus marmoreus in response to different light qualities. Int J Biol Macromol 2022; 223:1320-1334. [PMID: 36395936 DOI: 10.1016/j.ijbiomac.2022.11.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 10/28/2022] [Accepted: 11/04/2022] [Indexed: 11/16/2022]
Abstract
Light is important environmental stress that influences the growth, development, and metabolism of Hypsizygus marmoreus (white var.). However, the molecular basis of the light effect on H. marmoreus remains unclear. In this study, a label-free comparative proteomic analysis was applied to investigate the global protein expression profile of H. marmoreus mycelia growing under white, red, green, and blue light qualities and darkness (control). Among 3149 identified proteins in H. marmoreus, 2288 were found to be expressed in all tested conditions. Data of Each light quality was compared with darkness for further analysis, numerous differentially expressed proteins (DEPs) were identified and the white light group showed the most. All the up-regulated and down-regulated DEPs were annotated and analyzed with the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) database. The KEGG enrichment analysis revealed that light stress was associated with primary metabolism, glycolysis/gluconeogenesis, MAPK, proteasome, and carbohydrate-active enzyme pathways. This study advances valuable insights into the molecular mechanisms underlying the role of different light qualities in mushroom growth and development.
Collapse
Affiliation(s)
- Liping Zhu
- Shandong Provincial Key Laboratory of Applied Mycology, School of Life Sciences, Qingdao Agricultural University, 700 Changcheng Road, Chengyang District, Qingdao 266109, Shandong Province, People's Republic of China
| | - Yao Su
- Shandong Provincial Key Laboratory of Applied Mycology, School of Life Sciences, Qingdao Agricultural University, 700 Changcheng Road, Chengyang District, Qingdao 266109, Shandong Province, People's Republic of China
| | - Zhiheng Ma
- Shandong Provincial Key Laboratory of Applied Mycology, School of Life Sciences, Qingdao Agricultural University, 700 Changcheng Road, Chengyang District, Qingdao 266109, Shandong Province, People's Republic of China
| | - Lizhong Guo
- Shandong Provincial Key Laboratory of Applied Mycology, School of Life Sciences, Qingdao Agricultural University, 700 Changcheng Road, Chengyang District, Qingdao 266109, Shandong Province, People's Republic of China
| | - Song Yang
- Shandong Provincial Key Laboratory of Applied Mycology, School of Life Sciences, Qingdao Agricultural University, 700 Changcheng Road, Chengyang District, Qingdao 266109, Shandong Province, People's Republic of China.
| | - Hao Yu
- Shandong Provincial Key Laboratory of Applied Mycology, School of Life Sciences, Qingdao Agricultural University, 700 Changcheng Road, Chengyang District, Qingdao 266109, Shandong Province, People's Republic of China.
| |
Collapse
|
3
|
Lodi G, Sannino M, Cannarozzo G, Bennardo L, Nisticò SP. Non-epidermolytic palmoplantar keratoderma treated with blue LED light. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2022; 38:614-615. [PMID: 35365853 DOI: 10.1111/phpp.12791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/25/2022] [Accepted: 03/30/2022] [Indexed: 06/14/2023]
Affiliation(s)
- Giuseppe Lodi
- Laser Unit - University of Rome Tor Vergata, Rome, Italy
| | - Mario Sannino
- Laser Unit - University of Rome Tor Vergata, Rome, Italy
| | | | - Luigi Bennardo
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy
| | - Steven Paul Nisticò
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy
| |
Collapse
|
4
|
Hepp S, Trauth J, Hasenjäger S, Bezold F, Essen LO, Taxis C. An Optogenetic Tool for Induced Protein Stabilization Based on the Phaeodactylum tricornutum Aureochrome 1a Light-Oxygen-Voltage Domain. J Mol Biol 2020; 432:1880-1900. [PMID: 32105734 DOI: 10.1016/j.jmb.2020.02.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/10/2020] [Accepted: 02/14/2020] [Indexed: 01/02/2023]
Abstract
Control of cellular events by optogenetic tools is a powerful approach to manipulate cellular functions in a minimally invasive manner. A common problem posed by the application of optogenetic tools is to tune the activity range to be physiologically relevant. Here, we characterized a photoreceptor of the light-oxygen-voltage (LOV) domain family of Phaeodactylum tricornutum aureochrome 1a (AuLOV) as a tool for increasing protein stability under blue light conditions in budding yeast. Structural studies of AuLOVwt, the variants AuLOVM254, and AuLOVW349 revealed alternative dimer association modes for the dark state, which differ from previously reported AuLOV dark-state structures. Rational design of AuLOV-dimer interface mutations resulted in an optimized optogenetic tool that we fused to the photoactivatable adenylyl cyclase from Beggiatoa sp. This synergistic light-regulation approach using two photoreceptors resulted in an optimized, photoactivatable adenylyl cyclase with a cyclic adenosine monophosphate production activity that matches the physiological range of Saccharomyces cerevisiae. Overall, we enlarged the optogenetic toolbox for yeast and demonstrated the importance of fine-tuning the optogenetic tool activity for successful application in cells.
Collapse
Affiliation(s)
- Sebastian Hepp
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany; Center of Synthetic Microbiology, Philipps Universität Marburg, Hans-Meerwein- Strasse 4, 35032 Marburg, Germany
| | - Jonathan Trauth
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany; Center of Synthetic Microbiology, Philipps Universität Marburg, Hans-Meerwein- Strasse 4, 35032 Marburg, Germany; Molecular Genetics, Department of Biology, Philipps Universität Marburg, Karl-von-Frisch-Strasse 8, 35043 Marburg, Germany
| | - Sophia Hasenjäger
- Molecular Genetics, Department of Biology, Philipps Universität Marburg, Karl-von-Frisch-Strasse 8, 35043 Marburg, Germany
| | - Filipp Bezold
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany; Center of Synthetic Microbiology, Philipps Universität Marburg, Hans-Meerwein- Strasse 4, 35032 Marburg, Germany
| | - Lars-Oliver Essen
- Unit for Structural Biochemistry, Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany; Center of Synthetic Microbiology, Philipps Universität Marburg, Hans-Meerwein- Strasse 4, 35032 Marburg, Germany.
| | - Christof Taxis
- Molecular Genetics, Department of Biology, Philipps Universität Marburg, Karl-von-Frisch-Strasse 8, 35043 Marburg, Germany.
| |
Collapse
|
5
|
Hu W, Li Q, Li B, Ma K, Zhang C, Fu X. Optogenetics sheds new light on tissue engineering and regenerative medicine. Biomaterials 2019; 227:119546. [PMID: 31655444 DOI: 10.1016/j.biomaterials.2019.119546] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 10/09/2019] [Accepted: 10/14/2019] [Indexed: 01/23/2023]
Abstract
Optogenetics has demonstrated great potential in the fields of tissue engineering and regenerative medicine, from basic research to clinical applications. Spatiotemporal encoding during individual development has been widely identified and is considered a novel strategy for regeneration. A as a noninvasive method with high spatiotemporal resolution, optogenetics are suitable for this strategy. In this review, we discuss roles of dynamic signal coding in cell physiology and embryonic development. Several optogenetic systems are introduced as ideal optogenetic tools, and their features are compared. In addition, potential applications of optogenetics for tissue engineering are discussed, including light-controlled genetic engineering and regulation of signaling pathways. Furthermore, we present how emerging biomaterials and photoelectric technologies have greatly promoted the clinical application of optogenetics and inspired new concepts for optically controlled therapies. Our summation of currently available data conclusively demonstrates that optogenetic tools are a promising method for elucidating and simulating developmental processes, thus providing vast prospects for tissue engineering and regenerative medicine applications.
Collapse
Affiliation(s)
- Wenzhi Hu
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, PR China; Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Fourth Medical Center, Chinese PLA General Hospital, 100048, Beijing, PR China
| | - Qiankun Li
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, PR China; Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Fourth Medical Center, Chinese PLA General Hospital, 100048, Beijing, PR China
| | - Bingmin Li
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, PR China; Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Fourth Medical Center, Chinese PLA General Hospital, 100048, Beijing, PR China
| | - Kui Ma
- Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Fourth Medical Center, Chinese PLA General Hospital, 100048, Beijing, PR China
| | - Cuiping Zhang
- Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Fourth Medical Center, Chinese PLA General Hospital, 100048, Beijing, PR China.
| | - Xiaobing Fu
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, PR China; Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Fourth Medical Center, Chinese PLA General Hospital, 100048, Beijing, PR China.
| |
Collapse
|
6
|
Scheffer J, Hasenjäger S, Taxis C. Degradation of integral membrane proteins modified with the photosensitive degron module requires the cytosolic endoplasmic reticulum-associated degradation pathway. Mol Biol Cell 2019; 30:2558-2570. [PMID: 31411939 PMCID: PMC6740197 DOI: 10.1091/mbc.e18-12-0754] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Protein quality mechanisms are fundamental for proteostasis of eukaryotic cells. Endoplasmic reticulum–associated degradation (ERAD) is a well-studied pathway that ensures quality control of secretory and endoplasmic reticulum (ER)–resident proteins. Different branches of ERAD are involved in degradation of malfolded secretory proteins, depending on the localization of the misfolded part, the ER lumen (ERAD-L), the ER membrane (ERAD-M), and the cytosol (ERAD-C). Here we report that modification of several ER transmembrane proteins with the photosensitive degron (psd) module resulted in light-dependent degradation of the membrane proteins via the ERAD-C pathway. We found dependency on the ubiquitylation machinery including the ubiquitin-activating enzyme Uba1, the ubiquitin-conjugating enzymes Ubc6 and Ubc7, and the ubiquitin–protein ligase Doa10. Moreover, we found involvement of the Cdc48 AAA-ATPase complex members Ufd1 and Npl4, as well as the proteasome, in degradation of Sec62-myc-psd. Thus, our work shows that ERAD-C substrates can be systematically generated via synthetic degron constructs, which facilitates future investigations of the ERAD-C pathway.
Collapse
Affiliation(s)
- Johannes Scheffer
- Department of Chemistry/Biochemistry, Philipps-University Marburg, 35043 Marburg, Germany
| | - Sophia Hasenjäger
- Department of Biology/Genetics, Philipps-University Marburg, 35043 Marburg, Germany
| | - Christof Taxis
- Department of Biology/Genetics, Philipps-University Marburg, 35043 Marburg, Germany
| |
Collapse
|
7
|
Hasenjäger S, Trauth J, Hepp S, Goenrich J, Essen LO, Taxis C. Optogenetic Downregulation of Protein Levels with an Ultrasensitive Switch. ACS Synth Biol 2019; 8:1026-1036. [PMID: 30955324 DOI: 10.1021/acssynbio.8b00471] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Optogenetic control of protein activity is a versatile technique to gain control over cellular processes, for example, for biomedical and biotechnological applications. Among other techniques, the regulation of protein abundance by controlling either transcription or protein stability found common use as this controls the activity of any type of target protein. Here, we report modules of an improved variant of the photosensitive degron module and a light-sensitive transcription factor, which we compared to doxycycline-dependent transcriptional control. Given their modularity the combined control of synthesis and stability of a given target protein resulted in the synergistic down regulation of its abundance by light. This combined module exhibits very high switching ratios, profound downregulation of protein abundance at low light-fluxes, and fast protein depletion kinetics. Overall, this synergistic optogenetic multistep control (SOMCo) module is easy to implement and results in a regulation of protein abundance superior to each individual component.
Collapse
Affiliation(s)
- Sophia Hasenjäger
- Department of Biology/Genetics Philipps-University Marburg Karl-vom-Frisch-Straße 8, Marburg, 35032, Germany
| | - Jonathan Trauth
- Department of Biology/Genetics Philipps-University Marburg Karl-vom-Frisch-Straße 8, Marburg, 35032, Germany
- Department of Chemistry/Biochemistry Philipps-University Marburg Hans-Meerwein-Straße 4, Marburg, 35032, Germany
| | - Sebastian Hepp
- Department of Chemistry/Biochemistry Philipps-University Marburg Hans-Meerwein-Straße 4, Marburg, 35032, Germany
| | - Juri Goenrich
- Department of Biology/Genetics Philipps-University Marburg Karl-vom-Frisch-Straße 8, Marburg, 35032, Germany
| | - Lars-Oliver Essen
- Department of Chemistry/Biochemistry Philipps-University Marburg Hans-Meerwein-Straße 4, Marburg, 35032, Germany
| | - Christof Taxis
- Department of Biology/Genetics Philipps-University Marburg Karl-vom-Frisch-Straße 8, Marburg, 35032, Germany
| |
Collapse
|
8
|
Liu Z, Zhang J, Jin J, Geng Z, Qi Q, Liang Q. Programming Bacteria With Light-Sensors and Applications in Synthetic Biology. Front Microbiol 2018; 9:2692. [PMID: 30467500 PMCID: PMC6236058 DOI: 10.3389/fmicb.2018.02692] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/22/2018] [Indexed: 12/11/2022] Open
Abstract
Photo-receptors are widely present in both prokaryotic and eukaryotic cells, which serves as the foundation of tuning cell behaviors with light. While practices in eukaryotic cells have been relatively established, trials in bacterial cells have only been emerging in the past few years. A number of light sensors have been engineered in bacteria cells and most of them fall into the categories of two-component and one-component systems. Such a sensor toolbox has enabled practices in controlling synthetic circuits at the level of transcription and protein activity which is a major topic in synthetic biology, according to the central dogma. Additionally, engineered light sensors and practices of tuning synthetic circuits have served as a foundation for achieving light based real-time feedback control. Here, we review programming bacteria cells with light, introducing engineered light sensors in bacteria and their applications, including tuning synthetic circuits and achieving feedback controls over microbial cell culture.
Collapse
Affiliation(s)
- Zedao Liu
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| | - Jizhong Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| | - Jiao Jin
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| | - Zilong Geng
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| | - Qingsheng Qi
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| | - Quanfeng Liang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, China
| |
Collapse
|
9
|
Abstract
The ubiquitin-proteasome system (UPS) controls cellular functions by maintenance of a functional proteome and degradation of key regulatory proteins. Central to the UPS is the proteasome that adjusts the abundance of numerous proteins, thereby safeguarding their activity or initiating regulatory events. Here, we demonstrate that the essential Saccharomyces cerevisiae protein Yjr141w/Ipa1 (Important for cleavage and PolyAdenylation) belongs to the HECT_2 (homologous to E6-AP carboxyl terminus_2) family. We found that five cysteine residues within the HECT_2 family signature and the C-terminus are essential for Ipa1 activity. Furthermore, Ipa1 interacts with several ubiquitin-conjugating enzymes in vivo and localizes to the cytosol and nucleus. Importantly, Ipa1 has an impact on proteasome activity, which is indicated by the activation of the Rpn4 regulon as well as by decreased turnover of destabilized proteasome substrates in an IPA1 mutant. These changes in proteasome activity might be connected to reduced maturation or modification of proteasomal core particle proteins. Our results highlight the influence of Ipa1 on the UPS. The conservation within the HECT_2 family and the connection of the human HECT_2 family member to an age-related degeneration disease might suggest that HECT_2 family members share a conserved function linked to proteasome activity.
Collapse
|
10
|
Taxis C. Development of a Synthetic Switch to Control Protein Stability in Eukaryotic Cells with Light. Methods Mol Biol 2017; 1596:241-255. [PMID: 28293891 DOI: 10.1007/978-1-4939-6940-1_15] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In eukaryotic cells, virtually all regulatory processes are influenced by proteolysis. Thus, synthetic control of protein stability is a powerful approach to influence cellular behavior. To achieve this, selected target proteins are modified with a conditional degradation sequence (degron) that responds to a distinct signal. For development of a synthetic degron, an appropriate sensor domain is fused with a degron such that activity of the degron is under control of the sensor. This chapter describes the development of a light-activated, synthetic degron in the model organism Saccharomyces cerevisiae. This photosensitive degron module is composed of the light-oxygen-voltage (LOV) 2 photoreceptor domain of Arabidopsis thaliana phototropin 1 and a degron derived from murine ornithine decarboxylase (ODC). Excitation of the photoreceptor with blue light induces a conformational change that leads to exposure and activation of the degron. Subsequently, the protein is targeted for degradation by the proteasome. Here, the strategy for degron module development and optimization is described in detail together with experimental aspects, which were pivotal for successful implementation of light-controlled proteolysis. The engineering of the photosensitive degron (psd) module may well serve as a blueprint for future development of sophisticated synthetic switches.
Collapse
Affiliation(s)
- Christof Taxis
- Department of Biology/Genetics, Philipps-Universität Marburg, Karl-von-Frisch-Strasse 8, 35043, Marburg, Germany.
- Department of Chemistry/Biochemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany.
| |
Collapse
|
11
|
Joshi RG, Ratna Prabha C. Degrons of yeast and mammalian ornithine decarboxylase enzymes make potent combination for regulated targeted protein degradation. Appl Microbiol Biotechnol 2016; 101:2905-2917. [DOI: 10.1007/s00253-016-8023-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 11/16/2016] [Indexed: 10/20/2022]
|