Abstract:
:The in vivo effects of convulsant drugs (hydrazine and penicillamine) on the metabolism of gamma-aminobutyric acid (GABA) in subcellular fractions of mouse brain were studied. Both substances inhibited the activity of glutamic acid decarboxylase [EC 4.1.1.15] (GAD) in the synaptosomal fraction (nerve ending particles) and reduced the concentration of GABA in the same fraction at the onset of convulsions, though changes in the total GABA concentration in the brain did not correlate with the onset of convulsions. Therefore, it is suggested that the concomitant decrease of GAD activity and GABA concentration in the nerve endings, independently of the total GABA concentration, is probably an important factor in the onset of some kinds of convulsions.
journal_name
J Biochemjournal_title
Journal of biochemistryauthors
Abe M,Matsuda Mdoi
10.1093/oxfordjournals.jbchem.a131669subject
Has Abstractpub_date
1977-07-01 00:00:00pages
195-200issue
1eissn
0021-924Xissn
1756-2651journal_volume
82pub_type
杂志文章abstract::The gizzard tropomyosin molecule is composed of two subunits at 1:1 molar ratio. Possible composites of the tropomyosin molecule are two kinds of homodimer (one for each subunit), a heterodimer of two subunits, or a mixture of heterodimer and homodimer(s). We tried to evaluate the native subunit composition of gizzard...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123453
更新日期:1991-05-01 00:00:00
abstract::TreP [trehalose-permease (phosphotransferase system (PTS) trehalose-specific enzyme IIBC component)] is one of the target proteins of tmRNA-mediated trans-translation in Bacillus subtilis [Fujihara et al. (2002) Detection of tmRNA-mediated trans-translation products in Bacillus subtilis. Genes Cells, 7, 343-350]. The ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvn143
更新日期:2009-01-01 00:00:00
abstract::The binding of actin filaments to connectin, a muscle elastic protein, was investigated by means of turbidity and sedimentation measurements and electron microscopy. In the presence of less than 0.12 M KCl at pH 7.0, actin filaments bound to connectin. Long actin filaments formed bundles. Short actin filaments also ag...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122001
更新日期:1987-06-01 00:00:00
abstract::To identify the residues modified by radioactive N6-p-bromoacetaminobenzyladenosine-5'-phosphate in phosphorylase b, the peptic peptides of the modified enzyme were purified. Two radioactive peptides were isolated, each of which had a cysteine residue modified. The cysteine residue involved in the AMP site was determi...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132275
更新日期:1978-12-01 00:00:00
abstract::It is well established that promyelocytic leukaemia nuclear bodies (PML NBs) play important roles in DNA damage responses (DDR). After irradiation, PML NBs dynamically recruit or release important proteins involved in cell-cycle regulation, DNA repair and apoptosis. As PML protein is the key molecule of PML NBs' dynam...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvq105
更新日期:2010-12-01 00:00:00
abstract::Neuronal migration is a crucial event in neuronal development for the construction of brain architecture and neuronal networks. Newborn neurons proliferate in the germinal zone and start migration toward their final destination. Migrating neurons adopt different routes, cell shapes and migratory modes depending on ext...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/jb/mvz012
更新日期:2019-05-01 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
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124362
更新日期:1994-03-01 00:00:00
abstract::The fatty acid composition of cardiolipin from the Harderian gland of guinea pig was examined by gas chromatography and gas chromatography-mass spectrometry. At least 33 kinds of fatty acids were detected. Oleic acid was the most prominent component, accounting for 18.2 mol% of the total fatty acids. About 70.2 mol% o...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134995
更新日期:1984-12-01 00:00:00
abstract::The sarcoplasmic reticulum (SR) membranes of rabbit skeletal muscle were allowed to react with N-(3-pyrene)maleimide (PMI) at pH 7 at 30 degrees C. The Ca(2+)-transporting activity of the SR membranes was reduced to 20% when PMI was bound to the extent of 1 mol/mol of Ca(2+)-transporting ATPase. The ATPase and the E-P...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124155
更新日期:1993-08-01 00:00:00
abstract::The receptor protein for the mitochondrial protein precursor synthesized in the cytosol was extensively purified from the mitochondrial membrane fraction by affinity column chromatography using a synthetic peptide containing the extrapeptide of ornithine aminotransferase as a ligand. The purified fraction contained tw...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123135
更新日期:1990-06-01 00:00:00
abstract::The enzymatic properties of novel cysteine proteases D3-alpha and beta which were purified from germinating soybean cotyledons were investigated. The enzyme activities were exhibited in the presence of a thiol reagent, such as 2-mercaptoethanol, and apparently inhibited by E-64, a cysteine protease inhibitor. Hydrolyt...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022448
更新日期:1999-08-01 00:00:00
abstract::The electron transport system coupled to the oxidation of methylamine in Pseudomonas AM1 was investigated by reconstituting it from the highly purified components. A mixture of methylamine dehydrogenase, cytochrome cH and cytochrome c oxidase (= cytochrome aa3) actively oxidized methylamine (161 mol of O2 consumed/mol...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a121929
更新日期:1987-02-01 00:00:00
abstract::A proton nuclear magnetic resonance (NMR) study is reported of the molecular structural basis of antigen-antibody interactions. An immunologically reactive proteolytic fragment corresponding to one of the antigenic regions on hen egg-white lysozyme (HEL) was used in combination with a monoclonal antibody that recogniz...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122099
更新日期:1987-09-01 00:00:00
abstract::Tryptophan hydroxylase from mouse mastocytoma P-815 is activated by ethylenediaminetetraacetate (EDTA). The activation proceeds in a pH-, temperature-, and time-dependent manner and leads to a 30-fold higher activity at maximum. The optimal EDTA concentration is 10 microns. The activation requires solely EDTA with des...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133952
更新日期:1982-08-01 00:00:00
abstract::To understand the mechanism of activation of a receptor by its agonist, the excitation and relaxation processes of the vibrational states of the receptor should be examined. As a first approach to this problem, we calculated the normal vibrational modes of agonists (glutamate and kainate) and an antagonist (6-cyano-7-...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a002931
更新日期:2001-06-01 00:00:00
abstract::Disulfide bond interchange has been pointed out as a considerable problem in preparing recombinant proteins from Escherichia coli cells. This has been reported in the system of reducing denaturation followed by a refolding process, where incorrectly folded molecules are sometimes produced. As the possibility of disulf...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122419
更新日期:1988-07-01 00:00:00
abstract::The cytosol of human erythrocytes was found to contain a Ca2+-dependent thiol protease (calpain) and its specific inhibitor (calpastatin) by DEAE-cellulose chromatography at pH 8.0, although no proteolytic activity toward casein was detected in the unfractionated hemolysate. The protease required only 40 microM Ca2+ f...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133659
更新日期:1981-12-01 00:00:00
abstract::Two cDNA clones, pHPah1 and pHPah2, encoding polycyclic hydrocarbon-inducible forms of rabbit liver microsomal cytochrome P-450 were isolated and their nucleotide sequences were determined. The inserts of pHPah1 and pHPah2 contained open reading frames specifying the entire primary structures of cytochrome P-450s, con...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122017
更新日期:1987-06-01 00:00:00
abstract::Using the mRNA differential display technique and Western blot analysis, the present study demonstrates that induction of KAR2 occurs when misfolded membrane-bound cytochrome P450, mutated in its cytosolically exposed domain, is expressed in Saccharomyces cerevisiae. Using various KAR2 promoter constructs in front of ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022553
更新日期:1999-12-01 00:00:00
abstract::Activity-oligomeric assembly relationships using octaethylene glycol dodecyl ether (C12E8) solubilized pig gastric H/K-ATPase (unmodified H/K-ATPase) or H/K-ATPase modified with Fluorescein 5'-isothiocyanate (FITC-H/K-ATPase) were examined. The amount of oligomeric species in FITC-H/K-ATPase, which retained little H/K...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvi127
更新日期:2005-09-01 00:00:00
abstract::Polynucleotide phosphorylase from Thermus thermophilus catalyzed the addition of short guanylyl blocks from GDP to the 3'-hydroxyl termini of oligonucleotide primers at low temperature in a simple reaction mixture. Polyguanylic acid formation was inhibited at 37 degrees C, but the addition of one or two guanylyl resid...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132660
更新日期:1979-11-01 00:00:00
abstract::The nucleotide sequence of the aspartate aminotransferase [EC 2.6.1.1] structural gene, aspC, of Escherichia coli K-12 was determined. The coding region of the aspC gene contained 1,188 nucleotide residues and encoded 396 amino acid residues. The amino acid sequence deduced from the nucleotide sequence agreed perfectl...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a135173
更新日期:1985-04-01 00:00:00
abstract::Dynamic functionality of mitochondria is maintained by continual fusion and fission events. A mitochondrial outer membrane protein Fzo1 plays a pivotal role upon mitochondrial fusion by homo-oligomerization to tether fusing mitochondria. Fzo1 is tightly regulated by ubiquitylations and the ubiquitin-responsible AAA pr...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvz104
更新日期:2020-03-01 00:00:00
abstract::Hyaluronan (HA), a high-molecular-weight glycosaminoglycan ubiquitously present in the extracellular matrices (ECMs) of animals, plays important roles in ECM organization and cell behavior through binding to hyaluronan-binding proteins (HABPs). We previously reported that HA has anti-inflammatory effects on guinea pig...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvj002
更新日期:2006-01-01 00:00:00
abstract::Serologically active D-arabino-D-mannas ([alpha]D, +82 degrees approximately 89 degrees; ratio of D-arabinose to D-mannose, 1-2:1) were isolated from the soluble fraction of disintegrated cells of M. tuberculosis, M. smegmatis, and several other Mycobacterium species. These arabinomannans had similar structures, consi...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131874
更新日期:1977-12-01 00:00:00
abstract::By employing EPR spectrometry with the aid of a spin-trapping agent, 5,5-dimethyl-1-pyrroline-1-oxide (DMPO), the generation of superoxide anion and hydroxyl radical was reevaluated during the respiratory burst of porcine and human neutrophils. Properly prepared resting neutrophils did not generate any spin-trapped ra...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122777
更新日期:1989-06-01 00:00:00
abstract::An enzyme which catalyzes the hydrolysis of acetamido groups of N-acetylglucosamine residues in cell wall peptidoglycan was found in the supernatant and 20,000 X g pellet fractions of Bacillus cereus. Autolysis of the latter fraction resulted in solubilization and activation of the deacetylase. Among various bacteria,...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132994
更新日期:1980-08-01 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
pub_type: 杂志文章
doi:10.1093/jb/mvq139
更新日期:2011-02-01 00:00:00
abstract::Glutamine synthetase from a Gram-positive acid-fast bacterium, Mycobacterium smegmatis, was purified to homogeneity from cells grown with glycerol-bouillon medium. Electron micrographs of the enzyme revealed a dodecameric arrangement of its subunits in two superimposed hexagonal rings, similar to the structure of glut...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134768
更新日期:1984-06-01 00:00:00
abstract::Rho family GTPases act as transducers of signals from extracellular stimuli to the cytoskeleton and gene expression. Their actions are temporal and spatial determinants for cellular functions. The cellular functions of Rho family GTPases have been studied in fibroblasts and endothelial cells, and recent advances have ...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.jbchem.a003205
更新日期:2002-08-01 00:00:00