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 specific radioactivities among catalases from various cell fractions. On the other hand, peroxisomal catalase was labeled gradually, reaching a plateau at about 90 min. The patterns of incorporation of both isotopes were similar to those obtained previously with rat live catalase, except that the 3H-radioactivities were much higher. From the results obtained it could be postulated that kidney catalase is synthesized on polysomes and then transferred to peroxisomes, directly or via the soluble phase. The ratio of 3H/14C incorporated was lowest in microsomal catalase, highest in microsomal catalase, highest in peroxisomal enzyme and intermediate in catalase of the soluble fraction. The increment with time was large in the latter two catalases, while the former showed a rather small change. The evidence suggests that nascent catalase contains less heme than the completed molecule; further addition of heme to this intermediate seems to occur in the cytosol, and possibly also in peroxisomes. Administration of a porphyrinogenic drug, (2-isopropyl-4-pentenoyl)urea, produced a remarkable decrease in the incorporation of [3H]ALA into kidney catalase, with no significant effect on that of [14C]leucine.
journal_name
J Biochemjournal_title
Journal of biochemistryauthors
Higashi T,Kawamata F,Dogen Mdoi
10.1093/oxfordjournals.jbchem.a131272subject
Has Abstractpub_date
1976-08-01 00:00:00pages
259-65issue
2eissn
0021-924Xissn
1756-2651journal_volume
80pub_type
杂志文章abstract::Amino acids produced from formaldehyde and hydroxylamine in modified sea mediums with different concentrations of molybdate were analyzed. The modified sea mediums contained lower concentration of sodium chloride and higher concentrations of transition metal ions (Zn2+, Fe3+, Cu2+, Co2+, Mn2+ each 10(-4)m, and Mo O4(2...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:
更新日期:1977-08-01 00:00:00
abstract::The DNA chain elongation mechanisms of mouse DNA polymerases alpha and beta have been analyzed by using denatured DNA with a (dT)n block at the 3'-end as a template in combination with RNA ((rA)12-20)primer. The (rA)12-20-primed DNA product synthesized by DNA polymerase alpha was 3-5 s in size even after prolonged rea...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:
更新日期:1980-12-01 00:00:00
abstract::Two kinds of myosin phosphatases were purified from fresh chicken gizzard smooth muscle. Alkaline phosphatase (CGP-a), which requires Mg2+, was most active at pH 8.6 with 2 to 4 mM Mg2+, and was essentially the same as the phosphatase we reported previously (J. Biochem. 99, 1027-1036 (1986]. On the other hand, neutral...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122278
更新日期:1988-02-01 00:00:00
abstract::Purothionin isolated from commercial wheat flour contained several components and two of them (A-I and A-II) were isolated in pure form by CM-52 column chromatography. Each component contained 45 amino acid residues with a 4 disulfide bonds. Purothionin A-II was digested with trypsin and thermolysin to isolate cystine...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132079
更新日期:1978-06-01 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::The subcellular distribution of calmodulin and particulate calmodulin-binding activity was studied in a eukaryotic protozoan, Tetrahymena pyriformis NT-1. The particulate calmodulin-binding activity was found to be localized principally in microsomes and to some extent in cilia and surface membranes called pellicles. ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133549
更新日期:1981-09-01 00:00:00
abstract::Do non-active-site residues participate in protein function in a more direct way than just by holding the static framework of the protein molecule? If so, how important are they? As a model to answer these questions, ATB17, which is a mutant of aspartate aminotransferase created by directed evolution, is an ideal syst...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a002941
更新日期:2001-06-01 00:00:00
abstract::From the homogenate of rat submaxillary gland, two kinds of serine proteinases, named tentatively proteinases A and B, were isolated and their chemical properties and activities toward rat kininogens were examined, in comparison with those of submaxillary kallikrein. Proteinase A with Mr of 28,200 rapidly cleaved high...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122185
更新日期:1987-12-01 00:00:00
abstract::Interleukin-1 (IL-1) is produced and released by various cells, including activated macrophages, and plays important roles in inflammation as well as immune responses. Since the precursor of IL-1 has no signal peptide, the mechanism of IL-1 release has been an enigma. To investigate the possibility of direct interacti...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124987
更新日期:1995-10-01 00:00:00
abstract::MicroRNAs (miRNAs) are a class of ∼22 nt non-coding RNAs that control diverse biological functions in animals, plants and unicellular eukaryotes by promoting degradation or inhibition of translation of target mRNAs. miRNA expression is often tissue specific and developmentally regulated. Aberrant expression of miRNAs ...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/jb/mvq096
更新日期:2010-10-01 00:00:00
abstract::The nicotinamide adenine dinucleotide (NADH)/nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and the xanthine oxidase (XOD) systems generate reactive oxygen species (ROS). In the present study, to characterize the difference between the two systems, the kinetics of ROS generated by both the NADH oxidase an...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvr051
更新日期:2011-08-01 00:00:00
abstract::In porcine aortic smooth muscle cells, neuropeptide Y (NPY) stimulates mobilization of CA(2+) from intracellular store sites via Y1 receptors. However, it has been debated whether or not Ca(2+) mobilization by Y1 receptors depends on the generation of inositol 1,4,5-trisphosphate [Ins(1,4,5)P3] following activation of...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124938
更新日期:1995-09-01 00:00:00
abstract::The phospholipid mediator, platelet activating factor (PAF: 1-O-alkyl-2-O-acetyl-sn-glycero-3-phosphocholine), was recently reported to activate macrophage-monocyte cells as well as neutrophils or platelets. PAF was incorporated into dipalmitoylphosphatidylcholine-cholesterol liposomes, and their effect on guinea pig ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a135172
更新日期:1985-04-01 00:00:00
abstract::The terminal bases of the viral ribonucleic acid from the Caulobacter ribonucleic acid phage phiCp2 were examined. The viral ribonucleic acid contained guanosine triphosphate (pppG) at the 5'-terminus and adenosine (AOH) at the 3'-terminus. ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132112
更新日期:1978-07-01 00:00:00
abstract::An acid proteinase different from pepsin was purified from bullfrog (Rana catesbeiana) gastric mucosa by chromatography on hydroxyapatite, Q-Sepharose, Con A-Sepharose 4B, and Mono Q columns. Its molecular weight after purification was estimated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis to be 45 kDa...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124308
更新日期:1994-01-01 00:00:00
abstract::Separation of 13-hydroperoxylinoleic acid or 13-hydroperoxylinolenic acid from linoleic acid or linolenic acid, respectively, was carried out easily and quickly by high performance liquid chromatography on porous polymer gel (TSK-Gel LS-140) using n-hexane/ethanol as an eluent. An eluent containing a large amount of n...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:
更新日期:1977-08-01 00:00:00
abstract::In order to identify the b-type cytochrome involved in the nitrate reduction in a photodenitrifier, Rhodopseudomonas sphaeroides forma sp. denitrificans, the b-type cytochromes in the spheroplast membranes were characterized. Difference spectra at 77K of spheroplast membranes indicated the presence of two b-type cytoc...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134765
更新日期:1984-06-01 00:00:00
abstract::We found that transducing phages carrying the gal or bio regions of the Escherichia coli genome were formed during in vitro packaging of endogenous lambda DNA. Structural analysis of the transducing phage genomes indicated that they were formed by abnormal excision of lambda prophage. Formation of transducing phages w...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122680
更新日期:1989-03-01 00:00:00
abstract::Sphingosine-1-phosphate (S1P) and lysophosphatidic acid (LPA) are blood-borne lysophospholipids with a wide spectrum of biological activities, which include stimulation of cell growth, prevention of apoptosis, regulation of actin cytoskeleton, and modulation of cell shape, cell migration, and invasion. Activated plate...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.jbchem.a003163
更新日期:2002-06-01 00:00:00
abstract::Two transferrin (Tf) glycan-isoforms were previously found in cerebrospinal fluid (CSF); one appears to be derived from serum (Tf-2) and the other from choroid plexus, a CSF-producing tissue (Tf-1). To analyse metabolic differences associated with the two isoforms, their ratio (Tf-2/Tf-1) was defined as the Tf index. ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvw015
更新日期:2016-08-01 00:00:00
abstract::Epithelial-mesenchymal transition (EMT) is a morphogenetic process of cells that adopt an epithelial organization in their developmental ontogeny or homeostatic maintenance. Abnormalities in EMT regulation result in many malignant tumours in the human body. Tumours associated with the haematopoietic system, however, a...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/jb/mvy063
更新日期:2018-10-01 00:00:00
abstract::The effect of extracellular type-II phospholipase A2 (PLA2) on prostaglandin (PG) synthesis has been studied using rat liver-derived BRL-3A cells. The addition of type-II PLA2 to the medium of BRL-3A cells resulted in a marked decrease in the enzymatic activity in the medium. An immunochemical study involving an anti-...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/118.5.939
更新日期:1995-11-01 00:00:00
abstract::N-beta-Alanyl-5-S-glutathionyl-3,4-dihydroxyphenylalanine (5-S-GAD) exhibits selective cytotoxicity toward certain human tumor cell lines. 5-S-GAD has been shown to release hydrogen peroxide autonomously. Hydrogen peroxide is converted to water and oxygen by catalase. The purpose of this study is to determine whether ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvh054
更新日期:2004-04-01 00:00:00
abstract::The state of association of bovine Band 3, which is a major intrinsic protein of erythrocyte membranes, was examined in nonaethyleneglycol dodecyl ether (C12E9) solution by ultracentrifugation, gel filtration, gel electrophoresis and cross-linking studies. The molecular weight of bovine Band 3 was 107,000 +/- 5% as de...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133081
更新日期:1980-10-01 00:00:00
abstract::We evaluated the role of cytosolic phospholipase A2 (PLA2) in the exocytosis of amylase from parotid acinar cells. The exocytosis stimulated by isoproterenol was dose-dependently inhibited by bromoenol lactone (BEL), a potent suicide inhibitor of Ca2+-independent cytosolic PLA2. The IC50 value of BEL was approximately...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a021688
更新日期:1997-06-01 00:00:00
abstract::In a search for adjuvants of non-bacterial origin for immunization with ganglioside, we investigated whether chemical coupling to immune stimulatory protein could increase the immunogenicity of sialoglycosphingolipid. A novel method for the linkage of glycosphingolipids, including gangliosides, to protein was establis...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124455
更新日期:1994-06-01 00:00:00
abstract::The mitogen-activated protein kinase (MAPK) signaling pathway, which is conserved from yeast to humans, is activated in response to a variety of extra- and intracellular stimuli, and plays key roles in multiple cellular processes, including proliferation, differentiation, and apoptosis. The MAPK pathway transmits its ...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/jb/mvh079
更新日期:2004-06-01 00:00:00
abstract::Cholesterol esterification and cholesterol ester hydrolysis in dog plasma were investigated. Esterification proceeded linearly for 60 min, and the amounts of cholesterol esterified were in the range of 0.13-0.18 mumol/ml/h. No change of acyl composition had occurred in newly formed cholesterol esters during incubation...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132864
更新日期:1980-05-01 00:00:00
abstract::Aldehyde reductases from several mammalian and avian tissues transferred the pro-4R hydrogen of NADPH to the substrate, whereas the stereospecificity of carbonyl reductases was not uniform being correlated with the ability to catalyze the oxidoreduction of hydroxysteroids. ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a135362
更新日期:1985-10-01 00:00:00
abstract::The amino acid sequences of human histones have been investigated for studies of histone evolution. The whole histone was prepared from human spleen and was separated into 3 fractions, H4+H3+H2A, H2B, and H1, by our technique of CM-cellulose chromatography. The H2B fraction was further purified by Bio-Gel P-60 chromat...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132371
更新日期:1979-02-01 00:00:00