Fine substrate specificities of four exo-type cellulases produced by Aspergillus niger, Trichoderma reesei, and Irpex lacteus on (1-->3), (1-->4)-beta-D-glucans and xyloglucan.

abstract：:An NAD(P)H-dependent C-nitrosoreductase was purified 90 fold from porcine heart cytosol fraction by ammonium sulfate fractionation, gel filtration with Sephadex G-100, ion-exchange chromatography on DEAE-Sephadex A-50, and affinity chromatography on 5'-AMP-Sepharose. The enzyme had no aldehyde reductase activity and s...

journal_title：Journal of biochemistry

authors： Horie S,Ogura Y

更新日期：1980-10-01 00:00:00

abstract：:A new p-coumaric acid (4-hydroxycinnamic acid) hydroxylase was detected in mung bean seedlings treated with tentoxin, a fungal toxin, in which polyphenol oxidase that hydroxylates a wide variety of monophenols in vitro was completely eliminated. The enzyme required molecular oxygen and showed a pH optimum of 5.0. The ...

journal_title：Journal of biochemistry

authors： Kojima M,Takeuchi W

更新日期：1989-02-01 00:00:00

abstract：:The crystal structures of the GTP- and GDP-bound alpha subunits of heterotrimeric GTP-binding proteins were recently determined, and a conserved Thr residue in the G2 (linker 2) region of the alpha subunits, which corresponds to Thr182 in Gi2 alpha, was deduced to interact with the gamma-phosphate of GTP and Mg2+. To ...

journal_title：Journal of biochemistry

authors： Nishina H,Nimota K,Kukimoto I,Maehama T,Takahashi K,Hoshino S,Kanaho Y,Katada T

更新日期：1995-11-01 00:00:00

abstract：:Bromoacetamide derivatives having n-alkyl substituents (BrCH2CONH(CH2)nH, 1-n) and carboxyalkyl substituents (BrCH2CONH(CH2)nCOOH, 2-n) react with His-15 in lysozyme exclusively at N epsilon 2 at pH 5.5 and 40 degree C. Kinetic studies suggest that lysozyme has a small hydrophobic pocket that binds these reagents in t...

journal_title：Journal of biochemistry

authors： Yamada H,Uozumi F,Ishikawa A,Imoto T

更新日期：1984-02-01 00:00:00

abstract：:LukF and Hlg2 of staphylococcal gamma-hemolysin assemble into hetero-oligomeric pores on human red blood cells (HRBC). Here, we demonstrate, using a single-molecule imaging technique, that a W177T/R198T mutant of LukF, which exhibits no binding activity toward phosphatidylcholine, could form intermediate oligomers wit...

journal_title：Journal of biochemistry

authors： Monma N,Nguyen VT,Kaneko J,Higuchi H,Kamio Y

更新日期：2004-10-01 00:00:00

abstract：:The degradation rates of type I, II, and III collagens by tadpole collagenase were studied by measuring the viscosity of the solution and the contents of alpha chains and alpha A chains of collagen, using SDS-polyacrylamide gel electrophoresis followed by densitometric analysis of the separated peptide bands. An empir...

journal_title：Journal of biochemistry

authors： Hayashi T,Nakamura T,Hori H,Nagai Y

更新日期：1980-03-01 00:00:00

abstract：:A lectin was purified from edible mushroom, Volvariella volvacea by extraction with 5% cold acetic acid in the presence of 0.1% 2-mercaptoethanol, followed by ammonium sulfate fractionation, and DEAE-C-52 and CM-C-52 column chromatographies. The molecular weight was measured to be 26,000, and the lectin consisted of t...

journal_title：Journal of biochemistry

authors： Lin JY,Chou TB

更新日期：1984-07-01 00:00:00

abstract：:The rate of slow Li+ influx and the fraction of active form of acetylcholine receptor (AChR) of Electrophorus electricus membrane vesicles at equilibrium between the active and desensitized forms of the receptor were measured in the presence of various concentrations of phenyltrimethylammonium (PTA) and nereistoxin (N...

journal_title：Journal of biochemistry

authors： Aoshima H,Hori K,Yamamoto A

更新日期：1987-02-01 00:00:00

abstract：:Genetic engineering strategies were applied to synthesize silk-like materials, [(GVPGV)(2)GG(GAGAGS)(3)AS](n). The primary structure of these materials represents the repetitive crystalline region of Bombyx mori silk fibroins incorporated with an elastic motif selected from animal elastin. The oligonucleotides were de...

journal_title：Journal of biochemistry

authors： Yao J,Asakura T

更新日期：2003-01-01 00:00:00

abstract：:Staring from low molecular weight RNA obtained from rainbow trout (Salmo gairdnerii) liver, 5S ribosomal RNA (rRNA) was highly purified by successive chromatography on columns of DEAE-Sephadex A50 and Sephadex G100. Products of complete and partial digestions on this RNA with pancreatic ribonuclease (RNase A) [EC 3.1....

journal_title：Journal of biochemistry

authors： Komiya H,Takemura S

更新日期：1979-10-01 00:00:00

abstract：:Three kinds of phospholipase C [EC 3.1.4.3] were used to selectively hydrolyze phospholipids in rat liver microsomes, and their effects on the acyl-CoA: glycerophosphate and acyl-CoA: lysophospholipids acyltransferase systems were examined. The glycerophosphate acyltransferase [EC 2.3.1.15] system was inactivated rapi...

journal_title：Journal of biochemistry

authors： Sonoki S,Ikezawa H

更新日期：1976-12-01 00:00:00

abstract：:c-Abl non-receptor tyrosine kinase has been implicated in many cellular processes including cell differentiation, stress response and regulating gene transcription. The mechanism by which c-Abl is involved in the regulation of gene transcription remains to be elucidated. In this study, we investigated the functions of...

journal_title：Journal of biochemistry

authors： Jing Y,Wang M,Tang W,Qi T,Gu C,Hao S,Zeng X

更新日期：2007-05-01 00:00:00

abstract：:Homogeneous indanol dehydrogenase from monkey liver catalyzed the reversible conversion of 3 alpha- or 20 alpha-hydroxy groups of several bile acids and 5 beta-pregnanes to the corresponding 3- or 20-ketosteroids. The kcat values for the steroids determined at pH 7.4 were low, but the kcat/Km values for the 3-ketoster...

journal_title：Journal of biochemistry

authors： Hara A,Nakagawa M,Taniguchi H,Sawada H

更新日期：1989-11-01 00:00:00

abstract：:An anti-oxygen radical reagent of a bacterial metabolite, M874 monogalactoglycerolipid (di-O-12-methyl-tetradecanoyl-3-O-beta-D-galactopyranosyl-sn-glycerol ), was tested for its ability to protect two organisms against cellular lesions induced by 5-aminolevulinic acid (ALA) and light. In Corynebacterium flavescens AT...

journal_title：Journal of biochemistry

authors： Nakata K

更新日期：2000-05-01 00:00:00

abstract：:The promoter -10 binding region of the Bacillus subtilis sigma(A) factor forms an amphiphilic alpha-helix with three conserved isoleucines located at four-residue intervals. To investigate the structural and functional roles of the three isoleucine residues, we constructed a series of sigA mutants with single and doub...

journal_title：Journal of biochemistry

authors： Liao CT,Wang WH,Yang HS,Chen JP,Chang BY

更新日期：1999-09-01 00:00:00

abstract：:We have purified L-kynurenine 3-monooxygenase from pig liver mitochondria using a procedure involving seven steps composed of (1) preparation of mitochondrial outer membrane, (2) preparation of the zwitterionic detergent, 3-[(3-cholamidopropyl)dimethylammonio]-1-propane sulfonate (Chaps) insoluble outer membrane mater...

journal_title：Journal of biochemistry

authors： Uemura T,Hirai K

更新日期：1998-02-01 00:00:00

abstract：:The patterns of myosin isozymes in embryonic and adult chicken pectoralis muscle were examined by electrophoresis in a non-denaturing gel system (pyrophosphate acrylamide gel electrophoresis), and both light chains and heavy chains of embryonic and adult myosin isozymes were compared. In pyrophosphate acrylamide gel e...

journal_title：Journal of biochemistry

authors： Takano-Ohmuro H,Obinata T,Masaki T,Mikawa T

更新日期：1982-04-01 00:00:00

abstract：:The role of mannan chains in the formation and secretion of active acid phosphatase of yeast (Saccharomyces cerevisiae), a repressible cell surface mannoprotein, was studied in yeast protoplast systems by using tunicamycin at various temperatures. At 30 degrees C, tunicamycin-treated protoplasts did not produce active...

journal_title：Journal of biochemistry

authors： Mizunaga T,Izawa M,Ikeda K,Maruyama Y

更新日期：1988-02-01 00:00:00

abstract：:Kidney catalase [EC 1.11.1.6] was doubly labeled by injecting a mixture of [14C]-leucine and delta-amino[3H]levulinic acid (ALA) into normal and allyliso-(2-isopropyl-4-pentenoyl)urea (Sedormid)-treated rats. Shortly after the injection of a tracer dose or the precursors, catalase in microsomes showed the highest spec...

journal_title：Journal of biochemistry

authors： Higashi T,Kawamata F,Dogen M

更新日期：1976-08-01 00:00:00

abstract：:Previously, we isolated t-cinnamoyl-D-glucose as a possible intermediate in chlorogenic acid biosynthesis from sweet potato root. The enzyme which catalyzes the formation of t-cinnamoyl-D-glucose has been purified 539-fold from sweet potato root (Ipomoea batatas Lam.) and characterized. It required UDP-glucose as a gl...

journal_title：Journal of biochemistry

authors： Shimizu T,Kojima M

更新日期：1984-01-01 00:00:00

abstract：:Pseudomonas sp. 101 carboxyl proteinase (PCP) and Xanthomonas sp. T-22 carboxyl proteinase (XCP), the first and second unique carboxyl proteinases from prokaryotes to be isolated and characterized, are not inhibited by the classical carboxyl proteinase inhibitor pepstatin. In this study, we elucidated their subsite pr...

journal_title：Journal of biochemistry

authors： Narutaki S,Dunn BM,Oda K

更新日期：1999-01-01 00:00:00

abstract：:The effects of pH on the thermodynamic properties of the proton-translocating cyclic electron transfer system in a purple photosynthetic bacterium Chromatium vinosum were studied. Two thermodynamic parameters, the flux (Je) and force (deltamue) of the electron transfer process, were analyzed. The rate of electron tran...

journal_title：Journal of biochemistry

authors： Arata H,Nishimura M

更新日期：1979-02-01 00:00:00

abstract：:The yakC gene in Schizosaccharomyces pombe, which encodes yakC protein (YakC), a potential member of an aldo-keto reductase (AKR) family, was cloned and expressed in Escherichia coli cells. The recombinant YakC purified to homogeneity catalyzed the reduction of 2-nitrobenzaldehyde (k(cat), 44.1 s(-1), K(m), 0.185 +/- ...

journal_title：Journal of biochemistry

authors： Morita T,Huruta T,Ashiuchi M,Yagi T

更新日期：2002-10-01 00:00:00

abstract：:A form of UDP-glucuronyltransferase has been purified from liver microsomes of 3-methylcholanthrene-treated rats by a simple and rapid method involving chromatography on DEAE-Toyopearl and UDP-hexanolamine Sepharose columns. The purified preparation gave a single protein band (Mr 54,000) on sodium dodecyl sulfate-poly...

journal_title：Journal of biochemistry

authors： Yokota H,Yuasa A,Sato R

更新日期：1988-10-01 00:00:00

abstract：:Cholesterol: oxygen oxidoreductase [EC 1.1.3.6] from Brevibacterium sterolicum (ATCC 21387) was found to catalyze the oxidation of steroids such as sterols, steroid hormones, and bile acids having a free C-3beta hydroxyl group. However, the enzyme was inactive towards estradiol and estriol and had a weak activity towa...

journal_title：Journal of biochemistry

authors： Ikawa S,Takita M,Ogura M

更新日期：1979-06-01 00:00:00

abstract：:HUT-14 cells, tumorigenic human fibroblasts, express a mutant beta-actin which has a single amino acid substitution at position 244 (glycine to aspartic acid), in addition to normal beta- and gamma-actin. In order to characterize the biochemical function of the mutant beta-actin, actins were extracted and purified fro...

journal_title：Journal of biochemistry

authors： Taniguchi S,Sagara J,Kakunaga T

更新日期：1988-04-01 00:00:00

abstract：:Serine dehydrogenase from Escherichia coli is a homotetrameric enzyme belonging to the short-chain dehydrogenase/reductase (SDR) family. This enzyme catalyses the NADP(+)-dependent oxidation of serine to 2-aminomalonate semialdehyde. The enzyme shows a stereospecificity for β-(3S)-hydroxy acid as a substrate; however,...

journal_title：Journal of biochemistry

authors： Yamazawa R,Nakajima Y,Mushiake K,Yoshimoto T,Ito K

更新日期：2011-06-01 00:00:00

abstract：:To examine whether serine proteases of rat liver chromatin are also involved in the degradation of newly synthesized and unbound ribosomal proteins and histones, like the nuclear thiol protease which we reported previously (Tsurugi, K. & Ogata, K. (1979) Eur. J. Biochem. 101, 205-213), in vivo experiments were carried...

journal_title：Journal of biochemistry

authors： Tsurugi K,Oyanagi M,Ogata K

更新日期：1983-05-01 00:00:00

abstract：:To analyze the processing of extracellular enzymes of Bacillus subtilis, an NH2-terminally extended hybrid alpha-amylase [pTUBE638-alpha-amylase (E24)] was purified from the periplasm of E. coli(pTUBE638) as the substrate for the in vitro processing reaction, in which a 21-amino-acid extra-peptide was added at the NH2...

journal_title：Journal of biochemistry

authors： Itoh Y,Sumi M,Nakamura K,Yamane K

更新日期：1990-12-01 00:00:00

abstract：:A novel fucose-containing neutral glycosphingolipid (GL-5) was purified from the eggs of the sea urchin, Hemicentrotus pulcherrimus. The chemical structure was determined to be Fuc alpha 1-3GalNAc beta 1-4(Fuc alpha 1-3)GlcNAc beta 1-4Glc beta 1-1Cer by methylation analysis, partial acid hydrolysis, fast atom bombardm...

journal_title：Journal of biochemistry

authors： Kubo H,Jiang GJ,Irie A,Suzuki M,Inagaki F,Hoshi M

更新日期：1992-08-01 00:00:00