Inhibition of cathepsin E by alpha 2-macroglobulin and the resulting structural changes in the inhibitor.

abstract：:Four Bowman-Birk type double-headed inhibitors (B, C-II, D-II, and E-I) were isolated from soybeans. Inhibitor B was different from Bowman-Birk inhibitor only in chromatographic behavior. One mole of C-II inhibited one mole each of bovine trypsin and bovine alpha-chymotrypsin, probably at the same site, and porcine el...

journal_title：Journal of biochemistry

authors： Odani S,Ikenaka T

更新日期：1977-12-01 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：: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

authors： Takaguchi M,Takahashi T,Hosokawa C,Ueyama H,Fukushima K,Hayakawa T,Itoh K,Ikeda K,Suzuki T

更新日期：2011-02-01 00:00:00

abstract：:The conditions for the preparation of the ferricytochrome a-ferrocytochrome a3-carbon monoxide complex (a3+, a3(2)+CO) of cytochrome oxidase [EC 1.9.3.1] by the ferricyanide-reoxidation method and some properties of the prepared complex were studied. The addition of a small volume of concentrated ferricyanide solution...

journal_title：Journal of biochemistry

authors： Horie S,Watanabe T,Ave K

更新日期：1983-04-01 00:00:00

abstract：:The heavy chain of myosin subfragment-1 prepared by chymotrypsin treatment had a molecular weight of about 96 K. It was split into 26 K, 50K, and 21 K fragments on trypsin treatment. The effect of actin binding on the susceptibilities of the junctions between 26 K and 50 K and between 50 K and 21 K, and on that of alk...

journal_title：Journal of biochemistry

authors： Yamamoto K,Sekine T

更新日期：1979-12-01 00:00:00

abstract：:1. 3'-Guanylyl-ethanol, 3'-guanylyl-propanol, and 3'-guanylyl-alpha-glycerol were synthesized by ribonuclease N1 [EC 3.1.4.8] using guanosine 2',3'-cyclic phosphate as a phosphate donor and various alcohols as phosphate acceptors. The yields of these phosphodiesters were 15%, 13.5%, 38.2%, respectively, with respect t...

journal_title：Journal of biochemistry

authors： Tamanoi F,Uchida T,Egami F,Oshima T

更新日期：1976-07-01 00:00:00

abstract：:We purified an antimicrobial protein of 76 residues, denoted bovine antimicrobial protein-1 (BAMP-1), from fetal calf serum using hydrophobic chromatography, gel filtration, and reverse-phase high-performance liquid chromatography. The amino acid sequence of BAMP-1 was similar to that of human apolipoprotein A-II (apo...

journal_title：Journal of biochemistry

authors： Motizuki M,Itoh T,Yamada M,Shimamura S,Tsurugi K

更新日期：1998-04-01 00:00:00

abstract：:The effects of intra- and extravesicular calcium and magnesium ions on the hydrolysis of the phosphoenzyme (EP) intermediate formed in the reaction of Ca2+,Mg2+-dependent ATPase of the sarcoplasmic reticulum were investigated. The rate constants of EP hydrolysis were measured under conditions that allowed a single tur...

journal_title：Journal of biochemistry

authors： Daiho T,Takisawa H,Yamamoto T

更新日期：1985-02-01 00:00:00

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

authors： Hatanaka H,Egami F

更新日期：1977-08-01 00:00:00

abstract：:A new assay method for hydrogenase [EC 1.12.2.1] based on the enzymic electrode reaction of H2-H+ equilibrium has been established. The method is based on the experimental fact that the short-circuit current of the electric cell composed of an electrode with hydrogenase and methylviologen as the mediator of H2-H+ equi...

journal_title：Journal of biochemistry

authors： Yagi T,Goto M,Nakano K,Kimura K,Inokuchi H

更新日期：1975-09-01 00:00:00

abstract：:Papain [EC 3.4.22.2] polymerizes readily upon treatment with tetranitromethane (TNM) by forming intermolecular covalent linkages through its tyrosine residues (Tsukamoto, S. & Ohno, M. (1974) J. Biochem. 75, 1377-1380). Polymerization occurred optimally at pH 9.0 with S-sulfenylsulfonate papain. Circular dichroic spec...

journal_title：Journal of biochemistry

authors： Tsukamoto S,Ohno M

更新日期：1978-12-01 00:00:00

abstract：:Affinity labeling with nucleoside polyphosphopyridoxals, especially those with 3 or 4 phosphate groups, was effective for identifying the lysyl residue(s) located at or near the binding site for ATP, GTP, UDP-Glc, or ADP-Glc in various proteins. Furthermore, kinetic analysis of the mutant enzymes, in which the labeled...

journal_title：Journal of biochemistry

authors： Fukui T

更新日期：1995-06-01 00:00:00

abstract：:Several synthetic peptides derived from the C-terminal domain sequence of a hemolytic lectin, CEL-III, were examined as to their action on bacteria and artificial lipid membranes. Peptide P332 (KGVIFAKASVSVKVTASLSK-NH(2)), corresponding to the sequence from residue 332, exhibited strong antibacterial activity toward G...

journal_title：Journal of biochemistry

authors： Hatakeyama T,Suenaga T,Eto S,Niidome T,Aoyagi H

更新日期：2004-01-01 00:00:00

abstract：:The Mediator complex (Mediator) plays key roles in transcription and functions as the nexus for integration of various transcriptional signals. Previously, we screened for Mediator cyclin-dependent kinase (CDK)-interacting factors and identified three proteins related to chromatin regulation. One of them, SUZ12 is req...

journal_title：Journal of biochemistry

authors： Fukasawa R,Iida S,Tsutsui T,Hirose Y,Ohkuma Y

更新日期：2015-11-01 00:00:00

abstract：:Heat-stable malate dehydrogenase isolated from Thermus flavus AT62 was completely inactivated by treatment with diethylpyrocarbonate. The inactivation was accompanied by the loss of 1.2 histidine residues per subunit of the enzyme. The enzyme was protected from inactivation by NADH. The enzyme was also inactivated by ...

journal_title：Journal of biochemistry

authors： Iijima S,Oh MJ,Saiki T,Beppu T

更新日期：1986-06-01 00:00:00

abstract：:A new method for the acid hydrolysis of protein is presented. Peptide bonds are cleaved by the action of an HCl/trifluoroacetic acid (TFA) vapor mixture. Contamination for the hydrolysis mixture is reduced to low levels (1-3 pmol). Recovery of hydrophobic amino acid is improved. Short reaction times are achieved and r...

journal_title：Journal of biochemistry

authors： Tsugita A,Uchida T,Mewes HW,Ataka T

更新日期：1987-12-01 00:00:00

abstract：:The activity of biological molecules is often affected by their phosphorylation state. Regulatory phosphorylation operates as a binary switch and is usually controlled by counteracting kinases and phosphatases. However, phosphatidylinositol (PtdIns) has three phosphorylation sites on its inositol ring. The phosphoryla...

journal_title：Journal of biochemistry

authors： Miyazawa K

更新日期：2013-01-01 00:00:00

abstract：:The sulfhydryl groups required for the catalytic activity of gramicidin S synthetase of Bacillus brevis and Escherichia coli isoleucyl tRNA synthetase were compared. In gramicidin S synthetase 2(GS 2), about four sulfhydryl groups react rapidly with 5,5'-dithiobis(2-nitrobenzoic acid) (DTNB) or N-ethylmaleimide (NEM),...

journal_title：Journal of biochemistry

authors： Kanda M,Hori K,Kurotsu T,Miura S,Saito Y

更新日期：1984-09-01 00:00:00

abstract：:A simple, sensitive, and accurate method for determination of cholestanol in plasma is described. In this method a fixed amount of cholestane is added to 1 ml of plasma as an internal standard and steroids are saponified and extracted with n-hexane. The amounts of cholestanol and cholesterol are determined by mass fra...

journal_title：Journal of biochemistry

authors： Seyama Y,Ichikawa K,Yamakawa T

更新日期：1976-08-01 00:00:00

abstract：:NAD+ reductase of the green photosynthetic bacterium Prosthecochloris aestuarii was isolated and purified by ammonium sulfate fractionation, DEAE-cellulose column chromatography, and Sephadex G-200 gel filtration. This enzyme is an FAD-containing flavoprotein and has absorption maxima at 485 (shoulder0 452, 411, and 3...

journal_title：Journal of biochemistry

authors： Shioi Y,Takamiya K,Nishimura M

更新日期：1976-02-01 00:00:00

abstract：:A direct spectrophotometric suspension method for the estimation of immobilized ligands on a gel matrix was developed. The method uses 0.05% agarose solution to prepare a practically stable suspension of various agarose beads. The quantity of agarose beads in the suspension was estimated turbidometrically from the att...

journal_title：Journal of biochemistry

authors： Miyagawa A,Okuyama T

更新日期：1977-06-01 00:00:00

abstract：:A radioimmunoassay for chicken calcitonin in chicken ultimobranchial glands was established utilizing a rabbit antiserum against eel calcitonin. This assay method, which is about 100 times as sensitive as the usual bioassay for hypocalcemic activity, was used for monitoring chicken calcitonin during its purification. ...

journal_title：Journal of biochemistry

authors： Homma T,Watanabe M,Hirose S,Kanai A,Kangawa K,Matsuo H

更新日期：1986-08-01 00:00:00

abstract：:The most reactive single thiol group of rabbit skeletal muscle phosphofructokinase per protomer was modified with the following thiol reagents: iodoacetamide, iodoacetate, 2-hydroxyethyl disulfide, 3,3'-dithiodipropionate, and glutathione disulfide. As a result of the modification, there was increase in not only the a...

journal_title：Journal of biochemistry

authors： Nakajima Y,Nakamura K

更新日期：1991-02-01 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：:Class B scavenger receptor type I (SR-BI) is a phosphatidylserine (PS)-recognizing receptor of testicular Sertoli cells responsible for the phagocytosis of spermatogenic cells undergoing apoptosis. Here, we determined signal mediators that compose a signalling pathway for SR-BI-induced phagocytosis. Results of a yeast...

journal_title：Journal of biochemistry

authors： Osada Y,Sunatani T,Kim IS,Nakanishi Y,Shiratsuchi A

更新日期：2009-03-01 00:00:00

abstract：:A protease activity specific to spermatogenous histones was found in the egg extract of sea urchin. The enzyme responsible for this activity, named SPKK protease because of its substrate specificity, was purified as a monomeric 28 kDa protein. SPKK protease activity is inhibited by leupeptin and is specific to the rep...

journal_title：Journal of biochemistry

authors： Suzuki M,Sugiura M,Ebashi S

更新日期：1990-09-01 00:00:00

abstract：:The kinetic specificities of BPN' and Carlsberg subtilisins [EC 3.4.21.14] were examined with various nucleus-substituted derivatives of Nalpha-acetylated aromatic amino acid methyl esters for mapping their hydrophobic binding sites in comparison with that of alpha-chymotrypsin. The Carlsberg enzyme was generally much...

journal_title：Journal of biochemistry

authors： Karasaki Y,Ohno M

更新日期：1978-09-01 00:00:00

abstract：:Pure recA protein was easily obtained from Escherichia coli harboring plasmid pTM-2 which carried the recA gene by two chromatographic steps on phosphocellulose and DEAE-cellulose. RecA protein was stable in the pH range of 6 to 9 at 25 degrees C. RecA protein was found to aggregate highly under these conditions. Lowe...

journal_title：Journal of biochemistry

authors： Kuramitsu S,Hamaguchi K,Ogawa T,Ogawa H

更新日期：1981-10-01 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：:Single-chain antibodies (scFv), which can be produced in Escherichia coli cells, have been shown in numerous cases to be active in antigen binding. In the case of the two anti-lysozyme single-chain antibodies, scFvLH and scFvHL, which have the reversed arrangement of the variable domains of the heavy and light chains ...

journal_title：Journal of biochemistry

authors： Merk H,Stiege W,Tsumoto K,Kumagai I,Erdmann VA

更新日期：1999-02-01 00:00:00