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Ohashi M, Tan D, Lu J, Jamieson CS, Kanayama D, Zhou J, Houk KN, Tang Y. Enzymatic cis-Decalin Formation in Natural Product Biosynthesis. J Am Chem Soc 2023; 145:3301-3305. [PMID: 36723171 PMCID: PMC9931682 DOI: 10.1021/jacs.2c12854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Stereoselective synthesis of cis-decalin structures using [4 + 2] cycloaddition is challenging. We explored the biosynthetic pathway of the fungal natural product fischerin (1) to identify a new pericyclase FinI that can catalyze such a reaction. The cocrystal structure of FinI, a predicted O-methyltransferase, with the product and SAM provides insight into cis-decalin formation in nature.
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Affiliation(s)
- Masao Ohashi
- Departments of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Dan Tan
- Departments of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China
| | - Jiayan Lu
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Cooper S. Jamieson
- Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Daiki Kanayama
- Departments of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Jiahai Zhou
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - K. N. Houk
- Departments of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
- Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Yi Tang
- Departments of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
- Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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Puppulin L, Kanayama D, Terasaka N, Sakai K, Kodera N, Umeda K, Sumino A, Marchesi A, Weilin W, Tanaka H, Fukuma T, Suga H, Matsumoto K, Shibata M. Macrocyclic Peptide-Conjugated Tip for Fast and Selective Molecular Recognition Imaging by High-Speed Atomic Force Microscopy. ACS Appl Mater Interfaces 2021; 13:54817-54829. [PMID: 34766499 DOI: 10.1021/acsami.1c17708] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fast and selective recognition of molecules at the nanometer scale without labeling is a much desired but still challenging goal to achieve. Here, we show the use of high-speed atomic force microscopy (HS-AFM) for real-time and real-space recognition of unlabeled membrane receptors using tips conjugated with small synthetic macrocyclic peptides. The single-molecule recognition method is validated by experiments on the human hepatocyte growth factor receptor (hMET), which selectively binds to the macrocyclic peptide aMD4. By testing and comparing aMD4 synthesized with linkers of different lengths and rigidities, we maximize the interaction between the functionalized tip and hMET added to both a mica surface and supported lipid bilayers. Phase contrast imaging by HS-AFM enables us to discriminate nonlabeled hMET against the murine MET homologue, which does not bind to aMD4. Moreover, using ligands and linkers of small size, we achieve minimal deterioration of the spatial resolution in simultaneous topographic imaging. The versatility of macrocyclic peptides in detecting unlimited types of membrane receptors with high selectivity and the fast imaging by HS-AFM broaden the range of future applications of this method for molecular recognition without labeling.
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Affiliation(s)
- Leonardo Puppulin
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Department of Pathology and Cell Regulation, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto 602-8566, Japan
| | - Daiki Kanayama
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Naohiro Terasaka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Katsuya Sakai
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Noriyuki Kodera
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Kenichi Umeda
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Ayumi Sumino
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Arin Marchesi
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Wei Weilin
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Hideo Tanaka
- Department of Pathology and Cell Regulation, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto 602-8566, Japan
| | - Takeshi Fukuma
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Hiroaki Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Kunio Matsumoto
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Mikihiro Shibata
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
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Bat-Erdene U, Kanayama D, Tan D, Turner WC, Houk KN, Ohashi M, Tang Y. Iterative Catalysis in the Biosynthesis of Mitochondrial Complex II Inhibitors Harzianopyridone and Atpenin B. J Am Chem Soc 2020; 142:8550-8554. [PMID: 32365298 DOI: 10.1021/jacs.0c03438] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The pentasubstituted pyridine natural products harzianopyridone and atpenins are potent inhibitors of mitochondrial complex II. We identified the pathways of these compounds from their fungal producers and uncovered that the biosynthetic steps require multiple iterative enzymes. In particular, a methyltransferase and a flavin-dependent monooxygenase are used iteratively to introduce C5 and C6 methoxy groups. The pathway unexpectedly requires the installation and removal of an N-methoxy group, which is proposed to be a directing group that tunes the reactivity of the pyridone ring, possibly through the alpha effect.
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Omi T, Tanimukai H, Kanayama D, Sakagami Y, Tagami S, Okochi M, Morihara T, Sato M, Yanagida K, Kitasyoji A, Hara H, Imaizumi K, Maurice T, Chevallier N, Marchal S, Takeda M, Kudo T. Fluvoxamine alleviates ER stress via induction of Sigma-1 receptor. Cell Death Dis 2014; 5:e1332. [PMID: 25032855 PMCID: PMC4123092 DOI: 10.1038/cddis.2014.301] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 05/16/2014] [Accepted: 06/06/2014] [Indexed: 01/02/2023]
Abstract
We recently demonstrated that endoplasmic reticulum (ER) stress induces sigma-1 receptor (Sig-1R) expression through the PERK pathway, which is one of the cell's responses to ER stress. In addition, it has been demonstrated that induction of Sig-1R can repress cell death signaling. Fluvoxamine (Flv) is a selective serotonin reuptake inhibitor (SSRI) with a high affinity for Sig-1R. In the present study, we show that treatment of neuroblastoma cells with Flv induces Sig-1R expression by increasing ATF4 translation directly, through its own activation, without involvement of the PERK pathway. The Flv-mediated induction of Sig-1R prevents neuronal cell death resulting from ER stress. Moreover, Flv-induced ER stress resistance reduces the infarct area in mice after focal cerebral ischemia. Thus, Flv, which is used frequently in clinical practice, can alleviate ER stress. This suggests that Flv could be a feasible therapy for cerebral diseases caused by ER stress.
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Affiliation(s)
- T Omi
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Department of Psychiatry, Osaka General Medical center, Sumiyoshi-ku, Osaka, Japan
| | - H Tanimukai
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - D Kanayama
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Y Sakagami
- Department of Psychiatry, Osaka General Medical center, Sumiyoshi-ku, Osaka, Japan
| | - S Tagami
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - M Okochi
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - T Morihara
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - M Sato
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - K Yanagida
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - A Kitasyoji
- Gifu Pharmaceutical University, Department of Biofunctional Molecules, Gifu, Japan
| | - H Hara
- Gifu Pharmaceutical University, Department of Biofunctional Molecules, Gifu, Japan
| | - K Imaizumi
- Department of Biochemistry, Graduate School of Biomedical & Health Sciences Hiroshima University, Hiroshima, Japan
| | - T Maurice
- Team II Endogenous Neuroprotection in Neurodegenerative Diseases INSERM U. 710, EPHE, University of Montpellier cc 105, place Eugene Bataillon, Montpellier cedex 5, France
| | - N Chevallier
- Team II Endogenous Neuroprotection in Neurodegenerative Diseases INSERM U. 710, EPHE, University of Montpellier cc 105, place Eugene Bataillon, Montpellier cedex 5, France
| | - S Marchal
- Team II Endogenous Neuroprotection in Neurodegenerative Diseases INSERM U. 710, EPHE, University of Montpellier cc 105, place Eugene Bataillon, Montpellier cedex 5, France
| | - M Takeda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - T Kudo
- Department of Psychiatry, Osaka University Health Care Center, Toyonaka, Osaka, Japan
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