Search Results - "HONGO, YAYOI"

Membraneless polyester microdroplets as primordial compartments at the origins of life by Jia, Tony Z., Chandru, Kuhan, Hongo, Yayoi, Afrin, Rehana, Usui, Tomohiro, Myojo, Kunihiro, Cleaves, H. James

“…Compartmentalization was likely essential for primitive chemical systems during the emergence of life, both for preventing leakage of important components,…”
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Common and Potentially Prebiotic Origin for Precursors of Nucleotide Synthesis and Activation by Fahrenbach, Albert C, Giurgiu, Constantin, Tam, Chun Pong, Li, Li, Hongo, Yayoi, Aono, Masashi, Szostak, Jack W

“…We have recently shown that 2-aminoimidazole is a superior nucleotide activating group for nonenzymatic RNA copying. Here we describe a prebiotic synthesis of…”
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Estimating the capacity for production of formamide by radioactive minerals on the prebiotic Earth by Adam, Zachary R., Hongo, Yayoi, Cleaves, H. James, Yi, Ruiqin, Fahrenbach, Albert C., Yoda, Isao, Aono, Masashi

“…Water creates special problems for prebiotic chemistry, as it is thermodynamically favorable for amide and phosphodiester bonds to hydrolyze. The availability…”
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Mobilize a Proton to Transform the Collision-Induced Dissociation Spectral Pattern of a Cyclic Peptide by Nakamura, Takemichi, Hongo, Yayoi, Harada, Ken-ichi

“…The collision-induced dissociation (CID) behaviors of protonated molecules of anabaenopeptins, a group of cyanobacterial cyclic peptides, were investigated in…”
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Composition of rare earth elements in settling particles collected in the highly productive North Pacific Ocean and Bering Sea: Implications for siliceous-matter dissolution kinetics and formation of two REE-enriched phases by Akagi, Tasuku, Fu, Feng-fu, Hongo, Yayoi, Takahashi, Kozo

“…► Mn/Fe oxides have been considered to be the most important REEs carrier in seawater column. ► We study REEs in settling particles with high Si/Al ratios from…”
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Simple prebiotic synthesis of high diversity dynamic combinatorial polyester libraries by Chandru, Kuhan, Guttenberg, Nicholas, Giri, Chaitanya, Hongo, Yayoi, Butch, Christopher, Mamajanov, Irena, Cleaves, H. James

“…It is widely believed that the origin of life depended on environmentally driven complexification of abiotically produced organic compounds. Polymerization is…”
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RK-1355A and B, novel quinomycin derivatives isolated from a microbial metabolites fraction library based on NPPlot screening by Lim, Chung Liang, Nogawa, Toshihiko, Uramoto, Masakazu, Okano, Akiko, Hongo, Yayoi, Nakamura, Takemichi, Koshino, Hiroyuki, Takahashi, Shunji, Ibrahim, Darah, Osada, Hiroyuki

“…Two novel quinomycin derivatives, RK-1355A ( 1 ) and B ( 2 ), and one known quinomycin derivative, UK-63,598 ( 3 ), were isolated from a microbial metabolites…”
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Cytoprotective Effects of Lysophospholipids from Sea Cucumber Holothuria atra by Nishikawa, Yoshifumi, Furukawa, Ayumi, Shiga, Ikumi, Muroi, Yoshikage, Ishii, Toshiaki, Hongo, Yayoi, Takahashi, Shunya, Sugawara, Tatsuya, Koshino, Hiroyuki, Ohnishi, Masao

“…Lysophospholipids are important signaling molecules in animals and metazoan cells. They are widely distributed among marine invertebrates, where their…”
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Synthesis and Structural Revision of Phomopsin B, a Novel Polyketide Carrying a 10-Membered Cyclic-Ether Ring by Izuchi, Yuko, Koshino, Hiroyuki, Hongo, Yayoi, Kanomata, Nobuhiro, Takahashi, Shunya

“…Total synthesis of the proposed structure 2 for phomopsin B was achieved by using an intramolecular olefin metathesis as a key step. The spectral data,…”
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Radiolytic Synthesis of Cyanogen Chloride, Cyanamide and Simple Sugar Precursors by Yi, Ruiqin, Hongo, Yayoi, Yoda, Isao, Adam, Zachary R., Fahrenbach, Albert C.

“…Chemical evolution, from simple molecules to complex systems, is fundamental to modern origins of life research, and complex reaction networks are often…”
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Formation of Abasic Oligomers in Nonenzymatic Polymerization of Canonical Nucleotides by Mungi, Chaitanya V, Bapat, Niraja V, Hongo, Yayoi, Rajamani, Sudha

“…Polymerization of nucleotides under prebiotically plausible conditions has been a focus of several origins of life studies. Non-activated nucleotides have been…”
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Structural Determination of Montanacin D by Total Synthesis by Takahashi, Shunya, Hongo, Yayoi, Tsukagoshi, Yuki, Koshino, Hiroyuki

“…The first total syntheses of acetogenin 3 and its 4S,8R-isomer are described. The key step involves intermolecular metathesis of an α,β-unsaturated ketone…”
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Structural revision of kynapcin-12 by total synthesis, and inhibitory activities against prolyl oligopeptidase and cancer cells by Takahashi, Shunya, Yoshida, Ayaka, Uesugi, Shota, Hongo, Yayoi, Kimura, Ken-ichi, Matsuoka, Koji, Koshino, Hiroyuki

“…Kynapcin-12 is a prolyl oligopeptidase (POP) inhibitor isolated from Polyozellus multiplex, and its structure was assigned as 1 having a p-hydroquinone moiety…”
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An unexpected [M+I]+ ion formation in phosphasilene compounds detection by electrospray ionization mass spectrometry by Hongo, Yayoi, Li, Baolin, Suzuki, Katsunori, Nakamura, Takemichi

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Rare earth elements in seawater during an iron-induced phytoplankton bloom of the western subarctic Pacific (SEEDS-II) by Hara, Yasuko, Obata, Hajime, Doi, Takashi, Hongo, Yayoi, Gamo, Toshitaka, Takeda, Shigenobu, Tsuda, Atsushi

“…During an iron-enrichment experiment in the western subarctic Pacific (SEEDS-II), concentrations of dissolved and acid-soluble rare earth elements (REEs) were…”
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Simple and efficient synthesis of highly functionalized cyclohexanes; formal total synthesis of ovalicin and fumagillin by Takahashi, Shunya, Hongo, Yayoi, Ye, Yue Qi, Koshino, Hiroyuki

“…Two chiral cyclohexanes 4 and 6, which are key intermediates for the total synthesis of ovalicin 1 and fumagillin 2, respectively, were synthesized from (2 R,3…”
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Abstract A243: Identification of a target for collismycin A, a cytotoxic microbial product, by proteomic profiling by Kawatani, Makoto, Inoue, Gyo, Muroi, Makoto, Futamura, Yushi, Aono, Harumi, Uramoto, Masakazu, Hongo, Yayoi, Koshino, Hiroyuki, Igarashi, Yasuhiro, Takahashi-Ando, Naoko, Osada, Hiroyuki

“…Abstract Background: Collismycin A, a microbial product, has antiproliferative activity against tumor cells, the mechanism of which yet remains unknown…”
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Rare Earth Elements in the hydrothermal system at Okinawa Trough back-arc basin by HONGO, YAYOI, OBATA, HAJIME, GAMO, TOSHITAKA, NAKASEAMA, MIWAKO, ISHIBASHI, JUNICHIRO, KONNO, UTA, SAEGUSA, SHUNSUKE, OHKUBO, SATORU, TSUNOGAI, URUMU

“…We present novel data sets of rare earth element (REE) distributions in a hydrothermal vent field at Yonaguni Knoll IV in the Okinawa Trough. Vertical REE…”
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Spatial variations of rare earth elements in north pacific surface water by Hongo, Yayoi, Obata, Hajime, Sotto Alibo, Dia, Nozaki, Yoshiyuki

“…The concentration of dissolved rare earth elements (REE) were determined at 47 stations in the North Pacific surface waters. Combining with other previous…”
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Rare earth element geochemistry of hydrothermal deposits and Calyptogena shell from the Iheya Ridge vent field, Okinawa Trough by Hongo, Yayoi, Nozaki, Yoshiyuki

“…Although the rare earth element (REE) geochemistry of hydrothermal systems have intensively been investigated at mid-oceanic ridges, studies are relatively few…”
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