Molecular architectures and functions of radical enzymes and their (re)activating proteins.

abstract：:In this report, we describe a laser-latex combination system that enables membrane-impermeable molecules to penetrate cell membranes. Laser light (Q-switched Nd:YAG laser, 532.5 nm) was used to irradiate a mixture of commercial latex particles (blue dyed, 1 micro m in diameter) and mouse fibrosarcoma (Meth-A) cells. A...

journal_title：Journal of biochemistry

authors： Umebayashi Y,Miyamoto Y,Wakita M,Kobayashi A,Nishisaka T

更新日期：2003-08-01 00:00:00

abstract：:The structures of the N-linked oligosaccharides on recombinant human hepatocyte growth factor (rh-HGF) expressed by Chinese hamster ovary (CHO) cells were studied by two-dimensional sugar mapping. The oligosaccharides released from the glycopeptides by peptide: N-glycosidase F (PNGase F) treatment were tagged with 2-a...

journal_title：Journal of biochemistry

authors： Hara H,Nakae Y,Sogabe T,Ihara I,Ueno S,Sakai H,Inoue H,Shimizu S,Nakamura T,Shimizu N

更新日期：1993-07-01 00:00:00

abstract：:The active site of thermolysin is composed of one zinc ion and five polypeptide regions [N-terminal sheet (Asn112-Trp115), alpha-helix 1 (Val139-Thr149), C-terminal loop 1 (Asp150-Gly162), alpha-helix 2 (Ala163-Val176) and C-terminal loop 2 (Gln225-Ser234)]. To explore their catalytic roles, we introduced single amino...

journal_title：Journal of biochemistry

authors： Kusano M,Yasukawa K,Inouye K

更新日期：2009-01-01 00:00:00

abstract：:Ribose-modified fluorescent nucleotide analogs, 3'-O-anthraniloyl and 3'-O-(N-methylanthraniloyl) derivatives of AT(D)P, dAT(D)P, CT(D)P, UT(D)P, IT(D)P, and GT(D)P, were synthesized for use as substrates and affinity labels for the myosin ATPase [Hiratsuka, T. (1983) Biochim. Biophys. Acta 742, 496-508]. None of the ...

journal_title：Journal of biochemistry

authors： Hiratsuka T

更新日期：1984-07-01 00:00:00

abstract：:The interaction between riboflavin and riboflavin binding protein (RBP) was studied by 13C-NMR spectroscopy. The 13C-NMR spectra of riboflavin selectively enriched at the 2-, 4-, 4a-, and 10a-positions and of (3-[13C]methyl)riboflavin were measured both in the free and RBP-bound forms. The 13C signals of 13C-enriched ...

journal_title：Journal of biochemistry

authors： Miura R,Tojo H,Fujii S,Yamano T,Miyake Y

更新日期：1984-07-01 00:00:00

abstract：:Lipoamide dehydrogenase (LADase) was purified to homogeneity from rat liver mitochondria, and the intracellular distribution and biosynthesis of the LADase were investigated with antibody prepared against the purified enzyme. 1) LADase activity was mostly found in mitochondria; the activity in cytosol was about one-te...

journal_title：Journal of biochemistry

authors： Matuda S,Saheki T

更新日期：1982-02-01 00:00:00

abstract：:Heat-stable L-lactate dehydrogenase [EC 1.1.1.27] was purified from an extremely thermophilic bacterium belonging to the genus Thermus, and it showed an allosteric nature dependent on fructose 1,6-bisphosphate as an effector. The enzyme had a molecular weight of approximately 120,000 with a subunit molecular weight of...

journal_title：Journal of biochemistry

authors： Taguchi H,Yamashita M,Matsuzawa H,Ohta T

更新日期：1982-04-01 00:00:00

abstract：:Phosphoenolpyruvate carboxylase (PEPC) [EC 4.1.1.31] has a highly conserved and unique sequence, 578-FHGRGGSIGRGGAP-591 (on Escherichia coli, PEPC), in which a GRGG motif is repeated twice with two intervening residues. Since previous chemical modification studies suggested the functional importance of arginine residu...

journal_title：Journal of biochemistry

authors： Yano M,Terada K,Umiji K,Izui K

更新日期：1995-06-01 00:00:00

abstract：:The three-dimensional structure of rat-liver acyl-CoA oxidase-II (ACO-II) in a complex with a C12-fatty acid was solved by the molecular replacement method based on the uncomplexed ACO-II structure. The crystalline form of the complex was obtained by cocrystallization of ACO-II with dodecanoyl-CoA. The crystalline com...

journal_title：Journal of biochemistry

authors： Tokuoka K,Nakajima Y,Hirotsu K,Miyahara I,Nishina Y,Shiga K,Tamaoki H,Setoyama C,Tojo H,Miura R

更新日期：2006-04-01 00:00:00

abstract：:A real time biomolecular interaction assay system involving an optical sensor was applied to the quantitative analysis of the binding of herpes simplex virus type 1 (HSV-1) to Vero cells, and the neutralization antibody titer against this virus with a commercially available sulfonated human immunoglobulin preparation....

journal_title：Journal of biochemistry

authors： Inoue K,Arai T,Aoyagi M

更新日期：1997-04-01 00:00:00

abstract：:While many reports have shown that Ca2+ alone causes ryanodine binding to the heavy fraction of the sarcoplasmic reticulum (HFSR), our results demonstrate that caffeine or beta,gamma-methylene adenosine triphosphate (AMPOPCP) in addition to Ca2+ is necessary for ryanodine binding, although Ca2+ is indispensable for it...

journal_title：Journal of biochemistry

authors： Ogawa Y,Harafuji H

更新日期：1990-06-01 00:00:00

abstract：:To study the structure/function relationship and enzymatic properties of human aldolase C, we have constructed an Escherichia coli expression plasmid, pHAC11, for the isozyme. E. coli cells carrying this plasmid produced enzymatically active human aldolase C. The kcat and Km values for fructose-1,6-bisphosphate (Fru-1...

journal_title：Journal of biochemistry

authors： Kusakabe T,Motoki K,Hori K

更新日期：1994-06-01 00:00:00

abstract：:We analyzed the cellular contents of not only major polyamines but also minor polyamines in slime molds Physarum polycephalum and Dictyostelium discoideum. The presence of putrescine and spermidine in either plasmodia or myxamoebae of these molds as major polyamines was confirmed. In addition to these polyamines, appr...

journal_title：Journal of biochemistry

authors： Hamana K,Matsuzaki S

更新日期：1984-04-01 00:00:00

abstract：:The relationship between DNA structure of replacement vectors and gene targeting efficiency was studied using positive-negative selection. The vectors contained pBR322 DNA, a bacterial neomycin-resistance gene (neo) for positive selection, a herpes simplex virus (HSV) thymidine kinase gene (tk) for negative selection,...

journal_title：Journal of biochemistry

authors： Horie K,Nishiguchi S,Maeda S,Shimada K

更新日期：1994-03-01 00:00:00

abstract：:Angiogenesis, a formation of neovessels, is regulated by the local balance between angiogenesis stimulators and inhibitors. A number of such endogenous regulators of angiogenesis have been found in the body. Recently, vasohibin-1 (VASH1) was isolated as a negative feedback regulator of angiogenesis produced by endothe...

journal_title：Journal of biochemistry

authors： Sato Y

更新日期：2013-01-01 00:00:00

abstract：:Rat peritoneal macrophages were shown to have two distinct mannose/fucose/N-acetylglucosamine-specific lectins. The major lectin of 180 kDa, which is similar in size to the mannose receptor first isolated from alveolar macrophages (Wileman, T.E., Lennartz, M.R., & Stahl, P.D. (1986) Proc. Natl. Acad. Sci. U.S. 83, 250...

journal_title：Journal of biochemistry

authors： Ii M,Wada M,Kawasaki T,Yamashina I

更新日期：1988-10-01 00:00:00

abstract：:The effect of ryanodine on the permeation of glucose, choline, and Ca2+ through the Ca2+ channel in sarcoplasmic reticulum vesicles was studied by means of the light scattering and/or the tracer method. Ryanodine had the same effect on the permeabilities of choline and Ca2+; low concentrations of ryanodine (10 microM)...

journal_title：Journal of biochemistry

authors： Kasai M,Kawasaki T

更新日期：1993-03-01 00:00:00

abstract：:Aggregatibacter actinomycetemcomitans is an oral pathogen for aggressive periodontitis, and encodes a triheme c-containing membrane-bound enzyme, quinol peroxidase (QPO) that catalyzes peroxidase activity using quinol in the respiratory chain. In the previous work, we have characterized recombinant QPO purified from t...

journal_title：Journal of biochemistry

authors： Abe T,Kawarai T,Takahashi Y,Konishi K

更新日期：2017-06-01 00:00:00

abstract：:The effects of unsaturated fatty acids on the activities of peroxisomal enzymes of Tetrahymena pyriformis were investigated. When saturated fatty acids and the corresponding unsaturated fatty acids (C18) were added to the culture medium at 0.05%, the activities of peroxisomal enzymes [fatty acyl-CoA oxidase (FAO), car...

journal_title：Journal of biochemistry

authors： Gotoh K,Takei M,Watanabe T,Suga T

更新日期：1986-10-01 00:00:00

abstract：:Hydrostatic pressure-induced morphological and physiochemical changes in monomeric myosin were investigated. The turbidity of a myosin solution increased after release of pressure, indicating aggregation of the molecules. Some molecules were single headed after exposure to 100-200 MPa, in contrast with an intact molec...

journal_title：Journal of biochemistry

authors： Yamamoto K,Yoshida Y,Morita J,Yasui T

更新日期：1994-07-01 00:00:00

abstract：:d-Aspartate is found in the nervous and reproductive system and participates in various physiological roles. While several lines of evidence suggest that this amino acid has an endogenous origin, the enzyme responsible for mammalian d-Asp biosynthesis has not yet been identified. We show that mammalian serine racemase...

journal_title：Journal of biochemistry

authors： Ito T,Hayashida M,Kobayashi S,Muto N,Hayashi A,Yoshimura T,Mori H

更新日期：2016-12-01 00:00:00

abstract：:In the crude extract of matured eggs of the silkworm (Bombyx mori), proteolytic activity was detected only in the acidic pH region with maximal activity at pH 3.5, and this activity was maintained throughout the development. No appreciable activity was observed in the neutral to alkaline pH region either in matured eg...

journal_title：Journal of biochemistry

authors： Kageyama T,Takahashi SY,Takahashi K

更新日期：1981-09-01 00:00:00

abstract：:A soluble enzyme preparation (20,000 X g supernatant fraction), prepared from the mycelia of wild-type Neurospora crassa, was capable of transferring [14C]glucose from UDP-[14C]glucose into both trichloroacetic acid (TCA)-soluble and TCA-insoluble macromolecule products in the absence of added primer. These reactions ...

journal_title：Journal of biochemistry

authors： Takahara H,Matsuda K

更新日期：1977-06-01 00:00:00

abstract：:Oxygen-binding to haemocyanin (Hc) is generally an exothermic process, with overall enthalphy of oxygenation varying from species to species. A number of crustacean Hcs showed a null or reduced enthalphy of oxygenation, among others, the anomuran Pagurus bernhardus and Paralithodes camtscaticae possess a completely te...

journal_title：Journal of biochemistry

authors： Podda G,Manconi B,Olianas A,Pellegrini M,Messana I,Mura M,Castagnola M,Giardina B,Sanna MT

更新日期：2008-02-01 00:00:00

abstract：:We have detected in rat liver cytosol three enzymes (termed C-1, C-2, and C-3) which cleaved the RNA moiety of RNA-DNA hybrid. These enzymes were separated from each other by DEAE-Sephadex and Sephadex G-200 chromatography. C-1 and C-2 specifically act on the RNA moiety of RNA-DNA hybrid, while C-3 degrades single-str...

journal_title：Journal of biochemistry

authors： Tashiro F,Ueno Y

更新日期：1978-08-01 00:00:00

abstract：:This study presents the structural, kinetic and thermodynamic characterizations of previously unknown submicellar concentrations of SDS-induced molten globule (MGSDS) state of a highly negatively charged base-denatured ferricytochrome c (UB-state) at pH ∼12.8 (±0.2). The far-UV CD, near-UV CD, ANS-fluorescence data of...

journal_title：Journal of biochemistry

authors： Jain R,Sharma D,Kumar R,Kumar R

更新日期：2019-02-01 00:00:00

abstract：:The SH groups of glutamine synthetase [EC 6.3.1.2] from Bacillus stearothermophilus were modified with 5, 5'-dithiobis(2-nitrobenzoic acid) in order to determine the number of SH groups in the molecule as well as the effect of the modification on the enzyme activity. Three SH groups per subunit were detected after co...

journal_title：Journal of biochemistry

authors： Hachimori A,Takeda A,Nagaoka T,Suzuki H,Nosoh Y,Samejima T

更新日期：1975-12-01 00:00:00

abstract：:An escape mutant of human parainfluenza virus type 1 (hPIV1), which was selected by serial passage in the presence of a sialidase inhibitor, 4-O-thiocarbamoylmethyl-2-deoxy-2,3-didehydro-N-acetylneur-aminic acid (TCM-Neu5Ac2en), exhibited remarkable syncytium formation and virus-induced cell death in LLC-MK2 cells but...

journal_title：Journal of biochemistry

authors： Takaguchi M,Takahashi T,Hosokawa C,Ueyama H,Fukushima K,Hayakawa T,Itoh K,Ikeda K,Suzuki T

更新日期：2011-02-01 00:00:00

abstract：:Chemical modifications by photooxidation in the presence of rose bengal (RB) and with tetranitromethane (TNM) were carried out to elucidate the amino acid residues involved in the active site of inorganic pyrophosphatase (pyrophosphate phosphohydrolase) [EC 3.6.1.1] from Escherichia coli Q13. The photooxidation caused...

journal_title：Journal of biochemistry

authors： Samejima T,Tamagawa Y,Kondo Y,Hachimori A,Kaji H,Takeda A,Shiroya Y

更新日期：1988-05-01 00:00:00

abstract：:[3H]Methyl group incorporation and histamine secretion in rat mast cells induced by anti-IgE and con A were strongly inhibited by trans-4-guanidinomethylcyclohexanecarboxylic acid 4-tert-butylphenyl ester (GMCHA-OPhBut), a strong and specific inhibitor for pH 7 tryptase (Muramatsu et al. (1988) Biol. Chem. Hoppe-Seyle...

journal_title：Journal of biochemistry

authors： Takei M,Matumoto T,Endo K,Muramatu M

更新日期：1989-02-01 00:00:00