A5038037728- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Photosynthetic Processes and Mechanisms
- Photoreceptor and optogenetics research
- Mitochondrial Function and Pathology
- Synthetic Organic Chemistry Methods
- Light effects on plants
- Chemical Synthesis and Analysis
- Spectroscopy and Quantum Chemical Studies
- Algal biology and biofuel production
- Oxidative Organic Chemistry Reactions
- Gamma-ray bursts and supernovae
- Organometallic Complex Synthesis and Catalysis
- Astro and Planetary Science
- Atomic and Subatomic Physics Research
- Porphyrin and Phthalocyanine Chemistry
- Organic Chemistry Cycloaddition Reactions
- Catalytic Cross-Coupling Reactions
- Rheology and Fluid Dynamics Studies
- Plant responses to elevated CO2
- Photochemistry and Electron Transfer Studies
- ATP Synthase and ATPases Research
- Radical Photochemical Reactions
- Advanced Surface Polishing Techniques
- Epoxy Resin Curing Processes
National Institute for Basic Biology
2018-2023
The Graduate University for Advanced Studies, SOKENDAI
2019-2023
Japan Science and Technology Agency
2019
Tokyo University of Science
1994-2011
Kiel University
1997
The University of Tokyo
1997
Nagoya University
1968-1988
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPalladium(0)-catalyzed reaction of .alpha.,.beta.-epoxy ketones leading to .beta.-diketonesM. Suzuki, A. Watanabe, and R. NoyoriCite this: J. Am. Chem. Soc. 1980, 102, 6, 2095–2096Publication Date (Print):March 1, 1980Publication History Published online1 May 2002Published inissue 1 March 1980https://pubs.acs.org/doi/10.1021/ja00526a059https://doi.org/10.1021/ja00526a059research-articleACS PublicationsRequest reuse permissionsArticle...
Abstract We present a detailed investigation of photometric, spectroscopic, and polarimetric observations the Type II SN 2023ixf. Earlier studies have provided compelling evidence for delayed shock breakout from confined dense circumstellar matter (CSM) enveloping progenitor star. The temporal evolution polarization in 2023ixf phase revealed three distinct peaks at 1.4 days, 6.4 79.2 indicating an asymmetric CSM, aspherical front clumpiness low-density extended inner ejecta/He-core....
Photosystem I (PSI) is a large pigment-protein complex mediating light-driven charge separation and generating highly negative redox potential, which eventually utilized to produce organic matter. In plants algae, PSI possesses outer antennae, termed light-harvesting (LHCI), increase the energy flux reaction center. The number of antennae for in green alga Chlamydomonas reinhardtii known be larger than that land plants. However, their exact location remain elucidated. Here, applying newly...
As a ubiquitous picophytoplankton in the ocean and an early-branching green alga, Ostreococcus tauri is model prasinophyte species for studying functional evolution of light-harvesting systems photosynthesis. Here, we report structure function O. photosystem I (PSI) supercomplex low light conditions, where it expands its photon-absorbing capacity by assembling with complexes (LHCI) prasinophyte-specific complex (Lhcp). The architecture exhibits hybrid features plant-type algal-type PSI...
An intriguing molecular architecture called the "semi-crystalline photosystem II (PSII) array" has been observed in thylakoid membranes vascular plants. It is an array of PSII-light-harvesting complex (LHCII) supercomplexes that only appears low light, but its functional role not clarified. Here, we identified PSII-LHCII their monomeric and multimeric forms light-acclimated spinach leaves prepared them using sucrose-density gradient ultracentrifugation presence amphipol A8-35. When were...
Photosystem II (PSII) splits water and drives electron transfer to plastoquinone via photochemical reactions using light energy. It is surrounded by light‐harvesting complex (LHCII) form the PSII – LHCII supercomplex. Complete characterization of its structure function has, however, been hampered due instability in presence detergent. To overcome this problem, we developed a new procedure for purifying supercomplexes Chlamydomonas reinhardtii employing amphipol A8‐35. The obtained showed...
Nonphotochemical quenching (NPQ) is a mechanism of regulating light harvesting that protects the photosynthetic apparatus from photodamage by dissipating excess absorbed excitation energy as heat. In higher plants, major light-harvesting antenna complex (LHCII) photosystem (PS) II directly involved in NPQ. The aggregation LHCII proposed to be quenching. However, lack success isolating native aggregates has limited direct interrogation this process. isolation its state thylakoid membranes...
Reorganization of photosynthetic proteins on the thylakoid membrane is an important regulatory process for photoacclimation in organisms. However, underlying mechanism has been poorly understood due to lack methods analyze interactions between proteins. To investigate mechanism, we demonstrated binding properties light-harvesting complex (LHCs) a photosystem II (PSII) supercomplex regulated by pH conditions, which primarily responded environmental light using thermodynamic dissociation...
Abstract In the presence of catalytic amounts tetrakis(triphenylphosphine)palladium(0) and 1,2‐bis(diphenylphosphino)ethane, α,β‐epoxy ketones isomerize to corresponding β‐diketones in high yields. Both open‐chain cyclic substrates can be used. Possible reaction mechanisms are discussed.
Continuous wetness of leaves in the light causes a reduction carbon exchange rate (CER) Phaseolus vulgaris L. [Ishibashi and Terashima (1995) Plant Cell Environ. 18: 431]. In this study, we investigated initial cause photoinhibition upon application water, designated rain treatment, found large decrease electron transport through whole chain from water to methyl viologen via PSII PSI. spite transport, there was no activity either PSI or when these activities were measured separately. The...
We present a detailed investigation of photometric, spectroscopic, and polarimetric observations the Type II SN 2023ixf. The early detection highly-ionized flash features, rapid ascent in ultraviolet flux coupled with blueward shift near-ultraviolet colors temperature provides compelling evidence for delayed shock breakout from confined dense circumstellar matter (CSM) enveloping progenitor star. temporal evolution polarization 2023ixf phase revealed three distinct peaks at 1.4 d, 6.4 79.2...
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract Intramolecular aminomethylation of aromatic rings with N,O‐acetals tethered via an amine, e.g. (I), (III) or (V), proceeds smoothly in the presence TmsCl under mild conditions to give a variety benzodiazepine derivatives.