Effects of random mutagenesis in a putative substrate-binding domain of geranylgeranyl diphosphate synthase upon intermediate formation and substrate specificity.

abstract：:Glycosynthases are engineered glycoside hydrolases (GHs) that catalyse the synthesis of glycoside from glycosyl-fluoride donors and suitable acceptors. We have determined five crystal structures of the glycosynthase mutants reducing-end xylose-releasing exo-oligoxylanase, an inverting GH, that exhibit various levels o...

journal_title：Journal of biochemistry

authors： Hidaka M,Fushinobu S,Honda Y,Wakagi T,Shoun H,Kitaoka M

更新日期：2010-02-01 00:00:00

abstract：:We have been interested in partially folded proteins with marginal stability and activity, because they have a potential to be mature proteins by artificial evolution. A module is defined as a contiguous peptide chain forming a compact region in a globular protein. Modules may be used as building blocks to create part...

journal_title：Journal of biochemistry

authors： Tsuji T,Nagata T,Yanagawa H

更新日期：2008-10-01 00:00:00

abstract：:Pseudomonas L-phenylalanine oxidase (deaminating and decarboxylating) mainly catalyzes oxygenation when L-phenylalanine is used as the substrate, but oxidation when L-methionine is used as the substrate. Using [C(alpha)-H]-DL-methionine and [C(alpha)-D]-DL-methionine as substrate, the reductive half reaction of FAD co...

journal_title：Journal of biochemistry

authors： Ohta Y,Mukouyama EB,Suzuki H

更新日期：2006-03-01 00:00:00

abstract：:The primary structure of human IGF-I, except for the disulfide bond system, has been reported by Rinderknecht and Humbel. IGF-I afforded the corresponding characteristic peptide fragment on V8 protease digestion, which contained Cys6, Cys47, Cys48, and Cys52. Two possible fragments, Type I with Cys6-Cys47 and Cys48-Cy...

journal_title：Journal of biochemistry

authors： Iwai M,Kobayashi M,Tamura K,Ishii Y,Yamada H,Niwa M

更新日期：1989-12-01 00:00:00

abstract：:A p-nitrophenyl-alpha-D-glucopyranoside-hydrolyzing alpha-glucosidase from an obligate thermophile, Bacillus thermoglucosidius KP 1006, gave a triphasic relationship at pH 6.8 in the van't Hoff plot of Km, in the Arrhenius plot of the first order rate constant of inactivation with 0.1% sodium dodecyl sulfate, and in t...

journal_title：Journal of biochemistry

authors： Suzuki Y,Nakamura N,Kishigami T,Abe S

更新日期：1980-03-01 00:00:00

abstract：:The mitochondrion is an essential organelle for a wide range of cellular processes, including energy production, metabolism, signal transduction and cell death. To execute these functions, mitochondria regulate their size, number, morphology and distribution in cells via mitochondrial division and fusion. In addition,...

journal_title：Journal of biochemistry

authors： Murata D,Arai K,Iijima M,Sesaki H

更新日期：2020-03-01 00:00:00

abstract：:We can detect phospholipase A activity in non-hemolyzed sheep erythrocytes, using dilauroylglycerophosphocholine as an exogenous substrate. Only substrates such as dilauroylglycerophosphocholine, which can be incorporated into membranes, could be hydrolyzed by the enzyme, egg phosphatidylcholine being only slightly se...

journal_title：Journal of biochemistry

authors： Tanaka Y,Eriomin VA,Kawamura Y,Inoue K,Nojima S

更新日期：1983-09-01 00:00:00

abstract：:We previously reported that novel Mg(2+)-ATPases were induced in rat liver peroxisomes by clofibrate administration and that these activities consisted of at least two types of enzymes, N-ethylmaleimide (NEM)-sensitive and -resistant. Here we present evidence that neither of these major peroxisomal ATPases is associat...

journal_title：Journal of biochemistry

authors： Shimizu S,Imanaka T,Takano T,Ohkuma S

更新日期：1992-12-01 00:00:00

abstract：:ATP-dependent enzymes were investigated as to the stringency of their ATP requirement. For all the enzymes examined except firefly luciferase (including hexokinase, polynucleotide kinase, T4 DNA ligase, and T4 RNA ligase) ATP could be replaced with dATP, contradicting previous data. Considering the replaceable nucleot...

journal_title：Journal of biochemistry

authors： Kinoshita Y,Nishigaki K

更新日期：1997-07-01 00:00:00

abstract：:Studies were carried out on the delta 5-desaturation reaction in ergosterol biosynthesis with a particulate fraction of cell-free extract of yeast. A reduced pyridine nucleotide coenzyme and molecular oxygen were required for the reaction. It was shown that the enzyme activity is located in a fraction corresponding to...

journal_title：Journal of biochemistry

authors： Osumi T,Nishino T,Katsuki H

更新日期：1979-03-01 00:00:00

abstract：:Knockout mice lacking glycosyltransferases or sulfotransferases provide unequivocal evidence that the carbohydrate moieties of glycoproteins, glycolipids, and proteoglycans play essential roles in various biological phenomena such as development, the immune response, and tissue functions. Examples of abnormalities of ...

journal_title：Journal of biochemistry

authors： Muramatsu T

更新日期：2000-02-01 00:00:00

abstract：:A beta-galactosidase was extracted from the internal organs of a sea squirt, Styela plicata, and purified 959-fold, with an 18% yield, by successive gel chromatography, anion-exchange chromatography, chromatofocusing, and affinity chromatography on a Con A-Sepharose column. The purified enzyme was fairly homogeneous, ...

journal_title：Journal of biochemistry

authors： Shigeta S,Ono K,Oka S

更新日期：1991-07-01 00:00:00

abstract：:An adenosinetriphosphatase (ATPase) [EC 3.6.1.3] copurified with the DNA-dependent RNA polymerase [EC 2.7.7.6] from Escherichia coli was isolated to apparent homogeneity and some of its functional as well as structural properties were examined. Although the novel ATPase exhibited metal requirements similar to those of...

journal_title：Journal of biochemistry

authors： Ishihama A,Ikeuchi T,Matsumoto A,Yamamoto S

更新日期：1976-05-01 00:00:00

abstract：:1. Phospholipase D [EC 3.1.4.4] from Streptomyces hachijoensis was purified about 570-fold by column chromatography on DEAE-cellulose and Sephadex G-50 followed by isoelectric focusing. 2. The purified preparation was found to be homogeneous both by immunodiffusion and polyacrylamide disc gel electrophoresis. 3. The i...

journal_title：Journal of biochemistry

authors： Okawa Y,Yamaguchi T

更新日期：1975-08-01 00:00:00

abstract：:Rat platelets released phospholipase A2 and lysophospholipase upon activation with thrombin or ADP. The release of phospholipases was energy-dependent and was not in parallel with that of a known lysosomal marker enzyme, N-acetyl-beta-D-glucosaminidase. The phospholipases are derived from other granules (dense granule...

journal_title：Journal of biochemistry

authors： Horigome K,Hayakawa M,Inoue K,Nojima S

更新日期：1987-01-01 00:00:00

abstract：:Hepatic delta-aminolevulinate (ALA) synthetase was induced in mice by the administration of allylisopropylacetamide (AIA) and 3,5-dicarbethoxy-1,4-dihydrocollidine (DDC). In both cases, a significant amount of ALA synthetase accumulated in the liver cytosol fraction as well as in the mitochondria. The apparent molecul...

journal_title：Journal of biochemistry

authors： Igarashi J,Hayashi N,Kikuchi G

更新日期：1976-11-01 00:00:00

abstract：:HSP47 is a stress protein (heat shock protein) which resides in the endoplasmic reticulum, and is postulated to function as a collagen-specific molecular chaperone. To elucidate the role of HSP47 in procollagen biosynthesis, we have established human embryonic kidney 293 cell lines, which were stably transfected with ...

journal_title：Journal of biochemistry

authors： Hosokawa N,Hohenadl C,Satoh M,Kühn K,Nagata K

更新日期：1998-09-01 00:00:00

abstract：:The planar cell polarity (PCP) protein, Prickle (Pk), is conserved in invertebrates and vertebrates, and regulates cellular morphogenesis and movement. Vertebrate Pk consists of at least two family members, Pk1 and Pk2, both of which are expressed in the brain; however, their localization and function at synapses rema...

journal_title：Journal of biochemistry

authors： Hida Y,Fukaya M,Hagiwara A,Deguchi-Tawarada M,Yoshioka T,Kitajima I,Inoue E,Watanabe M,Ohtsuka T

更新日期：2011-06-01 00:00:00

abstract：:The 5'-AMP-activated protein kinase (AMPK) functions as a cellular energy sensor. 5-Aminoimidazole-4-carboxyamide-1-β-D-ribofranoside (AICAR) is a chemical activator of AMPK. In the liver, AICAR suppresses expression of thephosphoenolpyruvate carboxykinase(PEPCK) gene. The rat enhancer of split- and hairy-related prot...

journal_title：Journal of biochemistry

authors： Komatsu Y,Yanagisawa Y,Moriizumi M,Tsuchiya Y,Yokouchi H,Otsuka H,Aoyagi M,Tsukada A,Kanai Y,Haneishi A,Takagi K,Asano K,Ono M,Tanaka T,Tomita K,Yamada K

更新日期：2016-04-01 00:00:00

abstract：:Adult rat hepatocytes in primary culture cannot survive more than 2 days in the absence of calf serum. An extract of bovine pituitary gland had a similar effect to calf serum on the survival of hepatocytes, but its specific activity was 70 times that of calf serum. The survival factor was purified from bovine pituitar...

journal_title：Journal of biochemistry

authors： Asami O,Nakamura T,Mura T,Ichihara A

更新日期：1984-02-01 00:00:00

abstract：:Molecular cloning of the gene and the crystal structure of the prolyl aminopeptidase [EC 3.4.11.5] from Serratia marcescens have been studied by us [J. Biochem. 122, 601-605 (1997); ibid. 126, 559-565 (1999)]. Through these studies, Phe139, Tyr149, Glu204, and Arg136 were estimated to be concerned with substrate recog...

journal_title：Journal of biochemistry

authors： Ito K,Inoue T,Kabashima T,Kanada N,Huang HS,Ma X,Azmi N,Azab E,Yoshimoto T

更新日期：2000-10-01 00:00:00

abstract：:In the rat liver, two mRNAs for serine:pyruvate (or alanine:glyoxylate) aminotransferase are generated from a single gene by alternative transcription initiation. The longer mRNA encodes a precursor of a mitochondrial enzyme that has a mitochondrial targeting signal at the N-terminus and is translocated into mitochond...

journal_title：Journal of biochemistry

authors： Oda T,Uchida C,Miura S

更新日期：2000-04-01 00:00:00

abstract：:Temperature and solvent effects on reaction center structures were examined in two thermophilic photosynthetic bacteria, Chloroflexus aurantiacus and Chromatium tepidum, in order to gain insight into the interactions among the reaction center proteins and pigment systems. Thermal stability of the reaction centers was ...

journal_title：Journal of biochemistry

authors： Nozawa T,Madigan MT

更新日期：1991-10-01 00:00:00

abstract：:The sensitivity and specificity of two influenza C virus assays, solid-phase and overlay assays, were investigated using naturally occurring 9-O-acetylated GD(3), rat serum glycoproteins containing 60% of N-acetyl-9-O-acetylneuraminic acid, and synthetically O-acetylated sialylated compounds. The sensitivity of the so...

journal_title：Journal of biochemistry

authors： Hubl U,Ishida H,Kiso M,Hasegawa A,Schauer R

更新日期：2000-06-01 00:00:00

abstract：:When crude neurofilaments were dissolved in a solution containing 8 M urea and 1% beta-mercaptoethanol (beta-ME), the component proteins of the neurofilaments and other contaminating filaments were solubilized into monomeric forms. However, when reassembled filaments were solubilized again by the addition of urea to 8...

journal_title：Journal of biochemistry

authors： Tokutake S,Tanaka K

更新日期：1989-01-01 00:00:00

abstract：:The effects of Na+ and ATP on the K+ binding to Na+, K+-ATPase were investigated by the centrifugation method with radioactive K+ in the absence of Mg2+. In the presence of 10 microM 43KCl, 0.6 and 10 mM Na+ decreased the amount of bound K+ to one-half and zero, respectively. On the other hand, 10 microM and 10 mM ATP...

journal_title：Journal of biochemistry

authors： Homareda H,Nozaki T,Matsui H

更新日期：1987-03-01 00:00:00

abstract：:Calf thymus DNA polymerases alpha and beta [EC 2.7.7.7] and terminal deoxynucleotidyl transferase [EC 2.7.7.31] were analyzed on two-dimensional gel slabs. DNA polymerase beta appeared as a single spot on two-dimensional gel at the position of 40,000 daltons and pI 8.0 using non-equilibrium pH gradient gel electrophor...

journal_title：Journal of biochemistry

authors： Koiwai O,Masaki S,Kaneda T,Yoshida S

更新日期：1982-08-01 00:00:00

abstract：:CXCL14 is a member of the CXC chemokine family. CXCL14 possesses chemoattractive activity for activated macrophages, immature dendritic cells and natural killer cells. CXCL14-deficient mice do not exhibit clear immune system abnormalities, suggesting that the function of CXCL14 can be compensated for by other chemokin...

journal_title：Journal of biochemistry

authors： Hara T,Tanegashima K

更新日期：2012-05-01 00:00:00

abstract：:Nearly full-length cDNA clones for muscle-type and non-muscle-type aldolase mRNAs were cloned from lambda gt10 cDNA libraries constructed from skeletal muscle and liver mRNAs of lamprey (Entosphenus japonicus). The cDNA-M8 has 2,240 bp carrying an open reading frame of 1,089 bp which encodes 362 amino acids without th...

journal_title：Journal of biochemistry

authors： Zhang R,Yatsuki H,Kusakabe T,Iwabe N,Miyata T,Imai T,Yoshida M,Hori K

更新日期：1995-03-01 00:00:00

abstract：:The ferric uptake regulator A (FurA) plays an essential role in responding to oxidative stress in mycobacteria. The genome of Mycobacterium smegmatis harbours three FurA orthologs; however, the potential cross-talk and contribution to drug resistance of different furA operon remain underdetermined. In this study, we c...

journal_title：Journal of biochemistry

authors： Gao CH,Wei WP,Tao HL,Cai LK,Jia WZ,Hu L,Yang M

更新日期：2019-09-01 00:00:00