abstract：:Amino acid sequence analysis was done on a human lambda Bence Jones protein NIG-64 with the major objective of determining the sequence of the variable region. Nineteen tryptic peptides covering 216 residues were isolated from the completely reduced and aminoethylated protein, and 17 of these were completely sequenced...

journal_title：Journal of biochemistry

authors： Kametani F,Takayasu T,Suzuki S,Shinoda T,Okuyama T,Shimizu A

更新日期：1983-02-01 00:00:00

abstract：:Thymidine kinase [ATP: thymidine 5'-phosphotransferase, EC 2.7.1.21] has been purified more than 3,500 fold from microplasmodia of Physarum polycephalum. Properties of the enzyme were determined on preparations purified 1,400 fold. Thymidine was transformed to dTMP while a stoichiometric quantity of ATP was transforme...

journal_title：Journal of biochemistry

authors： Chraibi R,Wright M

更新日期：1983-02-01 00:00:00

abstract：:An ATP-dependent DNase has been purified from Thermus thermophilus HB8 by a procedure involving streptomycin precipitation, DEAE-cellulose chromatography, Sephadex G-200 gel filtration and heparin-agarose affinity chromatography. ATP-dependent DNase activity was separated into two distinct peaks, Peak A and Peak B, by...

journal_title：Journal of biochemistry

authors： Watanabe N,Umeno M,Anai M

更新日期：1983-02-01 00:00:00

abstract：:Phospholipase A2 of rat liver mitochondria was purified approximately 1,400-fold by extraction with KCl, and chromatographies on a Sephadex G-75 column and a diacyl-glycerophosphocholine-Sepharose affinity column. The purified enzyme was very labile when incubated either at 37 degrees C or 0 degrees C, and lost its ac...

journal_title：Journal of biochemistry

authors： Natori Y,Karasawa K,Arai H,Tamori-Natori Y,Nojima S

更新日期：1983-02-01 00:00:00

abstract：:In a previous report (J. Biochem. 89, 1333-1335, 1981) we showed that 30 degrees C-treatment (pCa less than 6 and 2 mM MgCl2), like EDTA-treatment, caused a reversible removal of regulatory light-chains from Akazara adductor myosin. Utilizing the heat-treatment, we now show (a) that not half but the total removal of r...

journal_title：Journal of biochemistry

authors： Ojima T,Nishita K,Watanabe S

更新日期：1983-02-01 00:00:00

abstract：:A high molecular weight protease inhibitor was purified from the egg white of Cuban crocodile (Crocodylus rhombifer). It inhibited the casein hydrolyzing activity of trypsin, subtilisin and papain. Its native molecular weight was 730,000 and it consisted of four subunits of equal molecular weight, each pair of which w...

journal_title：Journal of biochemistry

authors： Ikai A,Kitamoto T,Nishigai M

更新日期：1983-01-01 00:00:00

abstract：:The mechanism of binding between thermolysin with its specific inhibitor, talopeptin (MKI), was studied kinetically with the stopped-flow method by monitoring the enhancement of tryptophan fluorescence caused by the complex formation. Only one relaxation obeying first-order kinetics was observed. The dependence of the...

journal_title：Journal of biochemistry

authors： Kitagishi K,Hiromi K

更新日期：1983-01-01 00:00:00

abstract：:A DNA polymerase which was active with unprimed poly(dC) as a template was detected in the DNA polymerase alpha fraction from rat thymoma tissue. The activity was dependent on rGTP and associated with ribonucleotide polymerizing activity. The activity was partially sensitive to aphidicolin and dideoxy GTP and resistan...

journal_title：Journal of biochemistry

authors： Nishizawa M,Tanabe K,Matsukage A,Nakamura H,Yagura T

更新日期：1983-01-01 00:00:00

abstract：:The ATPase inhibitor from yeast, Saccharomyces cerevisiae, was found to strongly inhibit the ATPase activity when it was preincubated in an acidic pH region. This paper describes the conformational changes of the inhibitor in the acidic pH region, as studied by 1H NMR spectroscopy. In the pH range from 7.43 to 4.48, t...

journal_title：Journal of biochemistry

authors： Fujii S,Hashimoto T,Yoshida Y,Miura R,Yamano T,Tagawa K

更新日期：1983-01-01 00:00:00

abstract：:A new sulfated polysaccharide was isolated from the culture supernatant of a strain of Arthrobacter sp. The polysaccharide purified with quaternary ammonium salts consists of D-galactose, D-glucose, sulfate, phosphorus, glucosamine, muramic acid, alanine, glutamic acid, glycine, and LL-diaminopimelic acid in a molar r...

journal_title：Journal of biochemistry

authors： Inoue K,Korenaga H,Kadoya S

更新日期：1982-12-01 00:00:00

abstract：:Calpastatin, an endogenous inhibitor protein specifically acting on calpain [EC 3.4.22.17; Ca2+-dependent cysteine proteinase], was purified to apparent homogeneity from the cytosol fraction of human erythrocytes. The yield was 0.38 mg from 400 ml of blood. The purification procedures included DEAE-cellulose and Ultro...

journal_title：Journal of biochemistry

authors： Takano E,Murachi T

更新日期：1982-12-01 00:00:00

abstract：:The amino acid compositions, constituent polypeptides and bacteriochlorophyll (Bchl) contents of two kinds of Bchl-protein complexes isolated from Rhodopseudomonas palustris were examined. Spectrally dissimilar intracytoplasmic membranes obtained from cells cultured under different conditions were used as starting mat...

journal_title：Journal of biochemistry

authors： Hayashi H,Nakano M,Morita S

更新日期：1982-12-01 00:00:00

abstract：:Serum at 5 to 10% is required for maintenance of functional adult rat hepatocytes in primary culture. One effect of the serum is to induce attachment and spreading of hepatocytes on plates as monolayers. Another role is to maintain cell viability for over 2 days. For the first effect, serum could be replaced completel...

journal_title：Journal of biochemistry

authors： Horiuti Y,Nakamura T,Ichihara A

更新日期：1982-12-01 00:00:00

abstract：:The chromatin fraction of rat liver exhibited proteolytic activity caused by serine proteases, with maximal activity at pH 8 or 10. They were analyzed by affinity labeling with [3H]diisopropylfluorophosphate followed by SDS-polyacrylamide gel electrophoresis, and partially purified by gel filtration through Sepharose ...

journal_title：Journal of biochemistry

authors： Tsurugi K,Ogata K

更新日期：1982-11-01 00:00:00

abstract：:The amino acid sequences of ferredoxins I and II from a blue-green alga, Nostoc strain MAC were determined. This alga is able to grow autotrophically in the light or heterotrophically in the dark. Analyses of tryptic peptides of Cm-proteins by conventional methods including solid-phase Edman degradation gave the compl...

journal_title：Journal of biochemistry

authors： Hase T,Matsubara H,Hutber GN,Rogers LJ

更新日期：1982-11-01 00:00:00

abstract：:Our previous study showed that the amino acid sequence of Tetrahymena histone H2B has a blocked N-terminal residue followed by 119 amino acid residues, X-Pro-Lys.... [J. Biochem. (1982) 91, 897-904]. Now, X has been found to be N-trimethylalanine by 1H nuclear magnetic resonance spectroscopy of the isolated X-Pro-Lys ...

journal_title：Journal of biochemistry

authors： Nomoto M,Kyogoku Y,Iwai K

更新日期：1982-11-01 00:00:00

abstract：:alpha-Actinin purified from chicken gizzard smooth muscle was characterized in comparison with alpha-actinins from chicken striated muscles, or fast-skeletal muscle, slow-skeletal muscle, and cardiac muscle. The gizzard alpha-actinin molecule consisted of two apparently identical subunits with a molecular weight of 10...

journal_title：Journal of biochemistry

authors： Endo T,Masaki T

更新日期：1982-11-01 00:00:00

abstract：:Catalase from Aspergillus niger was purified to homogeneity as judged from the results of ultracentrifugation and polyacrylamide gel electrophoresis. The enzyme had a molecular weight of 385,000 as estimated from sedimentation measurements. Carbohydrate analyses showed that the catalase was a glycoprotein containing a...

journal_title：Journal of biochemistry

authors： Kikuchi-Torii K,Hayashi S,Nakamoto H,Nakamura S

更新日期：1982-11-01 00:00:00

abstract：:Acridine orange was found to accumulate in pure lysosomal particles (tritosomes) in vitro, and the quenching of its fluorescence correlated well with the delta pH (inside acid) across the lysosomal membrane. Use of this dye showed that Mg-ATP caused lysosomal acidification. This acidification was sensitive to N,N'-dic...

journal_title：Journal of biochemistry

authors： Moriyama Y,Takano T,Ohkuma S

更新日期：1982-10-01 00:00:00

abstract：:A new peroxide compound (ML-X) was isolated from an autoxidation product of methyl linoleate and was determined as methyl 9-hydroperoxy-12, 13-epoxy-10-octadecenoate. This compound inhibited state 3 respiration of rat heart- and liver mitochondria when glutamate and malate were used as substrates, but not when the sub...

journal_title：Journal of biochemistry

authors： Imagawa T,Kasai S,Matsui K,Nakamura T

更新日期：1982-10-01 00:00:00

abstract：:Lactosylceramide and paragloboside were synthesized from their precursor glycolipids and UDP-galactose by lactose synthase A protein [UDP-Gal : GlcNAc beta-4-galactosyltransferase, EC 2.4.1.22] purified to homogeneity from human plasma. The partially purified human liver enzyme and an extract from human lymphoblastoid...

journal_title：Journal of biochemistry

authors： Yamato K,Yoshida A

更新日期：1982-10-01 00:00:00

abstract：:The effect of crosslinking of F-actin with glutaraldehyde on the contractility of muscle ghost fiber containing reconstituted thin filament (i.e. F-actin-tropomyosin-troponin complex) and irrigated with myosin was investigated. The results show that: (i) crosslinking inhibited development of isometric tension and shor...

journal_title：Journal of biochemistry

authors： Próchniewicz-Nakayama E,Yanagida T

更新日期：1982-10-01 00:00:00

abstract：:The DNA fragment containing the phoS gene, a regulatory gene for alkaline phosphatase, has been isolated from Escherichia coli K-12 chromosomal DNA by cutting off the DNA with Hind III restriction enzyme and by cloning the gene with plasmid vector pTP 4 which was constructed in this study. The isolated fragment was of...

journal_title：Journal of biochemistry

authors： Iwakura M,Shimura Y,Tsuda K

更新日期：1982-09-01 00:00:00

abstract：:The present data describe the mechanism of the inhibitory effects of human plasma apolipoproteins A-I and A-II on hydrolysis of triglyceride catalyzed by hepatic triglyceride lipase using a substrate of triolein particles stabilized with gum arabic in vitro. The experimental data could well be described by a model in ...

journal_title：Journal of biochemistry

authors： Kubo M,Matsuzawa Y,Yokoyama S,Tajima S,Ishikawa K,Yamamoto A,Tarui S

更新日期：1982-09-01 00:00:00

abstract：:Triacylglycerol lipase activities in adrenals and testes of rats were measured and the properties of the enzymes were characterized. The enzymes were extracted from acetone-ether dried powder of the tissues and the crude extracts were applied to a heparin-Sepharose affinity column. The enzymes bound to the column were...

journal_title：Journal of biochemistry

authors： Murase T,Yamada N,Akanuma Y,Ohsawa N

更新日期：1982-09-01 00:00:00

abstract：:Poly(8-oxyinosinic acid) (poly O8I), was synthesized by polymerizing 8-oxyinosine diphosphate using the enzyme polynucleotide phosphorylase (PNPase). The polymer formed a 1 : 1 hybrid with polycytidylic acid (poly C). The hybrid was found to induce the production of interferon in the brain of white albino mice and pro...

journal_title：Journal of biochemistry

authors： Folayan JO

更新日期：1982-09-01 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：:Effects of polydeoxynucleotides on the activity of DNA polymerase-alpha from sea urchin embryos were studied. Poly(dG), poly(dC) and poly(dC)-oligo(dG)12-18 inhibited DNA polymerase-alpha activity in the activated DNA-directed reaction but poly(dA), oligo(dT)12-18, and poly(dA)-oligo(dT)12-18 did not inhibit the activ...

journal_title：Journal of biochemistry

authors： Oguro M,Nagano H

更新日期：1982-08-01 00:00:00

abstract：:Methylation and demethylation of the methyl-accepting chemotaxis protein (MCP) was studied in vitro. The in vitro MCP methylating system showed the following characteristics. 1. Multiple bands of methylated MCP were produced. 2. The reaction could be separated into two phases: the initial phase, in which the level of ...

journal_title：Journal of biochemistry

authors： Hayashi H,Minoshima S,Ohba M

更新日期：1982-08-01 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

authors： Yanagisawa M,Hasegawa H,Ichiyama A

更新日期：1982-08-01 00:00:00

abstract：:ATPase of 14S dynein, extracted from spermatozoa of the sea urchin, Hemicentrotus pulcherrimus, and partially purified by sucrose density gradient centrifugation, was inhibited non-competitively by palmitoyl CoA at concentrations higher than 20 microns, and was stimulated at concentrations between 2 microns and 10 mic...

journal_title：Journal of biochemistry

authors： Fujiwara A,Yokokawa M,Hino A,Yasumasu I

更新日期：1982-08-01 00:00:00

abstract：:1) Two forms of acid beta-galactosidase [EC 3.1.23] with different molecular weights catalyzing the hydrolysis of GM1-ganglioside and p-nitrophenyl-beta-D-galactoside were separated and purified from porcine spleen. 2) The apparent molecular weights were 400,000-600,000 and 70,000-74,000 for the high (termed Am form) ...

journal_title：Journal of biochemistry

authors： Yamamoto Y,Fujie M,Nishimura K

更新日期：1982-07-01 00:00:00

abstract：:Erucic acid was incorporated into cardiac phosphatidylserine and hepatic and cardiac sphingomyelin of male Sprague-Dawley rat. The fatty acid compositions of mitochondrial and microsomal phospholipids were similar in both liver and heart. The effect of a low fat diet and a diet containing erucic acid on the fatty acid...

journal_title：Journal of biochemistry

authors： Ishinaga M,Sato J,Kitagawa Y,Sugimoto E,Kito M

更新日期：1982-07-01 00:00:00

abstract：:The location and state of an essential histidyl residue in a milk-clotting acid proteases, Mucor rennin, were investigated by NMR spectroscopy. Assignment of the C2H resonance peak of the essential histidyl residue was possible by comparison of the NMR spectrum of the native enzyme with that of the photo-oxidized enzy...

journal_title：Journal of biochemistry

authors： Etoh Y,Shoun H,Ogino T,Fujiwara S,Arima K,Beppu T

更新日期：1982-06-01 00:00:00

abstract：:After a dose of 10 micrograms of 6-aminonicotinamide (6-AN) was administered to day-4- chick embryo in ovo, micromelia was obviously observed in the hind limbs of 7-day chick embryos. We examined the teratogenic mechanism of 6-AN by using the normal or micromelial hind limbs (buds) from day 5 to day 7, with special at...

journal_title：Journal of biochemistry

authors： Honda A,Iwama M,Umeda T,Mori Y

更新日期：1982-06-01 00:00:00

abstract：:When an aqueous solution of a spin-labeled "two tail" gangliosidoid was incubated with liposomes or sheep erythrocytes, the broad single resonance line in the ESR spectrum disappeared and a signal showing an anisotropic motion appeared, indicating that the spin-labeled "two tail" gangliosidoid in the micellar state wa...

journal_title：Journal of biochemistry

authors： Kanda S,Inoue K,Nojima S,Utsumi H,Wiegandt H

更新日期：1982-06-01 00:00:00

abstract：:By the application of a ganglioside-mapping technique, the lipid composition of bovine thyroid was analyzed systematically. The contents of cholesterol, lipid-bound phosphorus and lipid-bound sialic acid in bovine thyroid were 5.10, 9.76, and 0.28 mumol/g of dry tissue, respectively, and the molar ratio of cholesterol...

journal_title：Journal of biochemistry

authors： Iwamori M,Sawada K,Hara Y,Nishio M,Fujisawa T,Imura H,Nagai Y

更新日期：1982-06-01 00:00:00

abstract：:The major gangliosides were isolated from small intestine of 2-week-old mice of C3H/He strain and identified as GM3, GM1, and GD1a. These gangliosides characteristically contained a phytosphingosine moiety and alpha-hydroxy fatty acids. The gangliosides contained both N-glycolylneuraminic acid and N-acetylneuraminic a...

journal_title：Journal of biochemistry

authors： Sato E,Uezato T,Fujita M,Nishimura K

更新日期：1982-06-01 00:00:00

abstract：:A cell-free protein-synthesizing system active in initiation of translation of both endogenous mRNA and exogenous mRNA has been obtained from postmitochondrial supernatant (S-12) of the liver of ethionine-treated rats by adding reticulocyte ribosomal extract as a source of initiation factor. Formation of polysomes in ...

journal_title：Journal of biochemistry

authors： Hase M,Endo Y,Natori Y

更新日期：1982-05-01 00:00:00

abstract：:1. The addition of palmitic acid or myristic acid to a medium containing delipidated fetal bovine serum resulted in severe inhibition of V79-R cell growth. The degree of inhibition by palmitic acid was concentration dependent. Simultaneous addition of oleic acid protected the cells from the inhibition by palmitic acid...

journal_title：Journal of biochemistry

authors： Urade R,Kito M

更新日期：1982-05-01 00:00:00