Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Isamu Murakoshi"'
Publikováno v:
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The existence of the lupine alkaloids in leguminous plants mainly growing in Japan has been thoroughly ascertained, and 106 kinds of lupine alkaloids, including 51 kinds of novel lupine-type alkaloids, have been isolated and characterized from 28 spe
Publikováno v:
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A new monoterpenoidal carboxamide, concinnamide (1), has been isolated from the seeds of a Thai medicinal plant, Acacia concinna DC. (Leguminosae). Its structure has been revised to (E)-2, 6-dimethyl-6-hydroxy-2, 7-octadienamide by detailed spectrosc
Autor:
Isamu Murakoshi, Hosny Abdel-Fattah, Kazuki Saito, Koreharu Ogata, Toshikazu Sekine, Osama B. Abdel-Halim, Ahmed F. Halim
Publikováno v:
Phytochemical Analysis. 6:302-305
The structure of (+)-retamine (1), which has been isolated from the aerial part of Lygos raetam var. sarcocarpa, has been reconfirmed by spectroscopic methods including two-dimensional nuclear magnetic resonance spectroscopy and x-ray analysis to be
Autor:
Isamu Murakoshi, Fumio Ikegami, Takashi Kurihara, Kaori Matsunae, Masafumi Hisamitsu, Yamamoto Takeshi
Publikováno v:
Biological and Pharmaceutical Bulletin. 18:1531-1534
beta-D-Glucuronidase (baicalinase, GUS [EC 3.2.1.31]) activity in the crude drug, Scutellaria root, was assayed in line with the quality control standards of Kampo (Japanese Herbal) medicines. GUS was purified to homogeneity in the purification steps
Autor:
Kazuki Saito, Isamu Murakoshi, John E. Cronan, Mayumi Ohkuma, Akihiko Kawaguchi, Teemu H. Teeri, Shigeru Ohmori, Akira Hamajima
Publikováno v:
Transgenic Research. 4:60-69
The fabA gene of Escherichia coli encodes beta-hydroxydecanoyl thioester dehydrase (HDDase), a pivotal enzyme in the biosynthesis of the unsaturated fatty acid cis-vaccenic acid, through the anaerobic pathway. This enzyme is specific to bacterial fat
Publikováno v:
Journal of Biological Chemistry. 269:28187-28192
The cDNA clones that encode a putative mitochondrion-localizing isoform of cysteine synthase (O-acetyl-L-serine(thiol)-lyase, O-acetyl-L-serine acetate-lyase (adding hydrogen sulfide), EC 4.2.99.8), which is denoted as cysteine synthase C, were isola
Publikováno v:
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Cysteine synthase [O-acetyl-L-serine(thiol)-Iyase, EC 4.2.99.8] (CSase), which is responsible for the terminal step of cysteine biosynthesis, catalyzes the formation of L-cysteine from O-acetyl-L-serine (OAS) and hydrogen sulfide. Three T-DNA vectors
Autor:
Kazuki Saito, Naoko Miura, Mami Yamazaki, Kazuyo Tatsuguchi, Makoto Kurosawa, Reiko Kanda, Masaaki Noji, Isamu Murakoshi
Publikováno v:
Plant Cell, Tissue and Organ Culture. 38:153-158
Autor:
Fumio Ikegami, Isamu Murakoshi
Publikováno v:
Phytochemistry. 35:1089-1104
Naturally occurring heterocyclic β -substituted alanines such as l -quisqualic acid and β -(pyrazol-1-yl)- l -alanine are enzymatically synthesized from O -acetyl- l -serine (OAS) and suitable precursors by cysteine synthases (CSase, O -acetylserin
Publikováno v:
Molecular and General Genetics MGG. 244:57-66
We have isolated cDNA clones encoding cysteine synthase (CSase, EC 4.2.99.8), which catalyzes the terminal step in cysteine biosynthesis, by direct genetic complementation of a Cys- mutation in Escherichia coli with an expression library of Citrullus