Effect of oxidative stress on the production of recombinant human interferon-gamma in Escherichia coli.

abstract：:Cardiolipin, the primary lipid hapten in the antigen suspension used for the detection of antitreponemal antibodies in the sera of syphilitic patients, was successfully coupled to glucose oxidase, peroxidase, and some other enzymes using different crosslinking agents. These complexes were used to replace the pure unco...

journal_title：Biotechnology and applied biochemistry

authors： Ngeh-Ngwainbi J,Kuan SS,Steinman F,Guilbault GG

更新日期：1986-12-01 00:00:00

abstract：:A novel iron superoxide dismutase (Fe-SOD) gene from Jatropha curcas was cloned and expressed in Escherichia coli BL21 (DE3). This recombinant enzyme was isolated by a combined procedure involving immobilized metal-ion affinity chromatography and ion-exchange chromatography. The apparent molecular mass of this purifie...

journal_title：Biotechnology and applied biochemistry

authors： Ou-Yang C,Cai F,Gao S,Niu B,Wang S,Chen F

更新日期：2012-09-01 00:00:00

abstract：:The variation with pH of the kinetic parameters of penicillin acylase from Kluyvera citrophila has been used to gain information about the chemical mechanism of the reaction catalysed by the enzyme. The pH-dependence of log (V/Km) for penicillin G showed that a group with a pK value over 4.7 must be deprotonated and t...

journal_title：Biotechnology and applied biochemistry

authors： Martín J,Prieto I,Mancheño JM,Barbero JL,Arche R

更新日期：1993-06-01 00:00:00

abstract：:G-protein-coupled receptors (GPCRs), the largest family of cell-surface molecules involved in a number of biological and pathological processes, have recently emerged as key players in carcinogenesis and cancer progression. Orphan G protein-coupled receptors (oGPCRs) are a group of proteins lacking endogenous ligands....

journal_title：Biotechnology and applied biochemistry

authors： Cui X,Liu Y,Wang B,Xian G,Liu X,Tian X,Qin C

更新日期：2015-11-01 00:00:00

abstract：:A rapid, simple and sensitive fluorometric assay method for the determination of nitrilase activity is described. 3-Cyanopyridine was hydrolysed to nicotinic acid by Rhodococcus rhodochrous and the liberated NH(3) was allowed to react with buffered o -phthaldialdehyde-2-mercaptoethanol solution (pH 7.4) to form a fluo...

journal_title：Biotechnology and applied biochemistry

authors： Banerjee A,Sharma R,Banerjee UC

更新日期：2003-06-01 00:00:00

abstract：:Synthetic membranes containing 10% acrylamide units were subjected to activation with formaldehyde at pH 7.5 and 45 degrees C. Trypsin, invertase, and urease were bound to this activated membrane and the kinetic properties of immobilized enzymes were studied. The permeability of the membrane for distilled water manife...

journal_title：Biotechnology and applied biochemistry

authors： Krysteva MA,Shopova BI,Yotova LY,Karasavova MI

更新日期：1991-02-01 00:00:00

abstract：:Some epidemiological studies have suggested possible associations between exposure to extremely low-frequency electromagnetic fields (ELF-EMFs) and various diseases. Recently, ELF-EMF has been considered as a therapeutic agent. To support ELF-EMF use in regenerative medicine, in particular in the treatment of skin inj...

journal_title：Biotechnology and applied biochemistry

authors： Calcabrini C,Mancini U,De Bellis R,Diaz AR,Martinelli M,Cucchiarini L,Sestili P,Stocchi V,Potenza L

更新日期：2017-05-01 00:00:00

abstract：:A simplified and low-cost method, boiling lysis, was developed and used to purify the truncated DNA polymerase Stoffel fragment after overproduction of the enzyme in Escherichia coli. The method is based on the thermostable properties of the Stoffel fragment. Conditions such as the boiling time and number of cycles em...

journal_title：Biotechnology and applied biochemistry

authors： Yang Z,Ding Y,Zhang Y,Liu F

更新日期：2008-06-01 00:00:00

abstract：:Biologically active membrane proteins are difficult to isolate. Very often the isolated membrane proteins have low binding affinity or no biological integrity at all. Despite some success in isolation, one has to overcome the hurdles of obtaining sufficient quantity of the proteins and maintaining biological activity ...

journal_title：Biotechnology and applied biochemistry

authors： Wong RB,Lee AH,Rangan VS,Cheng KC

更新日期：2009-05-01 00:00:00

abstract：:A simple and cost-effective method is described to sequence double-stranded DNA (< 100 ng) using a very small amount of fluorescent sequencing mix (one-tenth of manufacturer-recommended amount). The modification has significant advantages over conventional protocols and can be used to sequence, using a single sequenci...

journal_title：Biotechnology and applied biochemistry

authors： Beg OU,Holt RG

更新日期：1997-08-01 00:00:00

abstract：:Amyloglucosidase from Rhizopus mould and beta-glucosidase from sweet almond were employed for the preparation of phenolic and vitamin glycosides of vanillin, N-vanillylnonanamide, DL-dopa, dopamine, curcumin, alpha-tocopherol (vitamin E), pyridoxine (vitamin B(6)), ergocalciferol (vitamin D(2)), thiamin (vitamin B(1))...

journal_title：Biotechnology and applied biochemistry

authors： Charles RE,Ponrasu T,Sivakumar R,Divakar S

更新日期：2009-03-01 00:00:00

abstract：:In order to impart an ability for receptor-independent transmembrane transfer to water-soluble proteins, it has been suggested that they be hydrophobized by lipid groups (fatty acids, etc.). To this end, systems of reversed micelles of surfactants in organic solvents were used as reaction media for protein modificatio...

journal_title：Biotechnology and applied biochemistry

authors： Alakhov VYu,Kabanov AV,Batrakova EV,Koromyslova IA,Levashov AV,Severin ES

更新日期：1990-02-01 00:00:00

abstract：:The effect of silica nanoparticles and conventional silica sources on the changes in microbial biomass and silica availability to pure soil and maize rhizosphere was studied. Nanosilica (20-40 nm) was synthesized from rice husk and comprehensively characterized. The efficiency of nanosilica was evaluated in terms of i...

journal_title：Biotechnology and applied biochemistry

authors： Rangaraj S,Gopalu K,Rathinam Y,Periasamy P,Venkatachalam R,Narayanasamy K

更新日期：2014-11-01 00:00:00

abstract：:The application of the sulfhydryl protease ficin as biocatalyst is proposed as a novel method for enzyme-catalyzed synthesis of dipeptides. The negligible peptidase but considerable esterase activity at alkaline pH facilitated the kinetically controlled formation of peptide bonds by coupling the ester substrates Z-Ala...

journal_title：Biotechnology and applied biochemistry

authors： Monter B,Herzog B,Stehle P,Fürst P

更新日期：1991-10-01 00:00:00

abstract：:So far, many studies have focused on biodegradable scaffolds for tissue engineering purposes. Herein, a starch-based biodegradable scaffold was fabricated by the freeze-drying method and cross-linked using a different concentration of 3-glycidoxypropyl-trimethoxysilane (GPTMS). Field emission scanning electron microsc...

journal_title：Biotechnology and applied biochemistry

authors： Aidun A,Zamanian A,Ghorbani F

更新日期：2019-01-01 00:00:00

abstract：:The urinary C-terminal telopeptide fragment of type II collagen (uCTX-II) has been reported as the efficient blood-based biomarker for osteoarthritis, which affects knees, hands, spine, and hips. This study reports a sensing strategy with antibody-conjugated gold nanoparticles (GNP) on an interdigitated electrode (IDE...

journal_title：Biotechnology and applied biochemistry

authors： Wang S,Su S,Yu C,Gopinath SCB,Yang Z

更新日期：2020-07-04 00:00:00

abstract：:Abdominal aortic aneurysm (AAA) is a vascular disease found to have progressive growth in the area of aorta. Rupturing of aorta causes excessive bleeding that leads to health-related issues, which can be fatal sometimes. Therefore, it becomes important to make early diagnosis of AAA and its condition and start immedia...

journal_title：Biotechnology and applied biochemistry

authors： Qiu C,Wang X,Zhang X,Li Z,Zhou Y,Kang J

更新日期：2020-08-15 00:00:00

abstract：:The conformation of a protein refers to the three-dimensional arrangement of its constituent atoms. Since expression of the biological activity of a protein depends on its conformation, it is clear that full characterization of a protein involves an understanding of its three-dimensional structure. This review outline...

journal_title：Biotechnology and applied biochemistry

authors： Price NC

更新日期：2000-02-01 00:00:00

abstract：:We evaluated a new protocol for measurement of cyclosporine A (CsA) 2 H after dose (C2) on the V-Twin® analyzer. Imprecision, recovery, and linearity were determined using CsA-spiked blood pools. Accuracy was evaluated using specimens from renal, cardiac, and liver transplant patients, and results were compared with t...

journal_title：Biotechnology and applied biochemistry

authors： Morjana N,Yau H,Rea D,Ruttle D,Jones H,Siefring G Jr,Christenson R

更新日期：2011-11-01 00:00:00

abstract：:A chitin-degrading Bacillus strain, designated as NCTU2, was screened from soil and identified. An extracellular chitinase was purified to >90% homogeneity from the culture filtrate. The purification involved hydrophobic-interaction and gel-filtration chromatographic separations with a yield of 58%. The purified enzym...

journal_title：Biotechnology and applied biochemistry

authors： Wen CM,Tseng CS,Cheng CY,Li YK

更新日期：2002-06-01 00:00:00

abstract：:A protein with a molecular mass of 66 kDa was isolated by a simple, rapid, and inexpensive method, using 3-N-morpholinopropanesulfonic acid, potassium thiocyanate, and dithiothreitol, from a mixture of spores, parasporal crystals, and cell debris of Bacillus thuringiensis subsp. kurstaki. The protein was active agains...

journal_title：Biotechnology and applied biochemistry

authors： Venkateswerlu G,Stotzky G

更新日期：1990-06-01 00:00:00

abstract：:St. John's wort ( Hypericum perforatum L.) is a herbaceous perennial distributed throughout the World that has been widely used in traditional medicine. H. perforatum produces several types of biologically active compound, including the hypericins--a family of light-activated anthraquinones, localized within specializ...

journal_title：Biotechnology and applied biochemistry

authors： Kirakosyan A,Sirvent TM,Gibson DM,Kaufman PB

更新日期：2004-02-01 00:00:00

abstract：:The structural underpinnings of O₂ activation in P450s have been limited by the inability to trap unstable oxy complexes in the crystalline state for structure determination. To date there are only two known oxy P450 structures. Even so, much is known about O₂ activation in P450cam and the role that redox partner bind...

journal_title：Biotechnology and applied biochemistry

authors： Poulos TL,Madrona Y

更新日期：2013-01-01 00:00:00

abstract：:Lipases are surface-active enzymes, acting on their substrates at the polar/nonpolar interface in emulsions. This study was aimed to test whether their activity, specificity, and the rates of formation/degradation of the various hydrolysis intermediates (i.e., mono- and diglycerides of interest as surface-active agent...

journal_title：Biotechnology and applied biochemistry

authors： Carpen A,Bonomi F,Iametti S,Marengo M

更新日期：2019-07-01 00:00:00

abstract：:In this study, laccase from Trametes versicolor was immobilized in poly(acrylamide-crotonic acid)/sodium alginate [P(AAm-CrA)/alginate], poly(acrylamide-crotonic acid)/K-carrageenan [(P(AAm-CrA)/K-car)], poly(acrylamide-citraconic acid)/sodium alginate (P(AAm-CA)/alginate), and poly(acrylamide-citraconic acid)/K-carra...

journal_title：Biotechnology and applied biochemistry

authors： Koklukaya SZ,Sezer S,Aksoy S,Hasirci N

更新日期：2016-09-01 00:00:00

abstract：:The therapeutic potential of microRNA-21 (miR-21) small-molecule inhibitors has been of particular interest to medicinal chemists. Moreover, the development of more facile screening methods is lacking. In the present study, two potential screening strategies for miR-21 small-molecule inhibitor including the stem-loop ...

journal_title：Biotechnology and applied biochemistry

authors： Hei YY,Guo YX,Jiang CS,Wang S,Lu SM,Zhang SQ

更新日期：2019-09-01 00:00:00

abstract：:A sensitive label-free electrochemical aptasensor was successfully fabricated for thrombin detection with platinum nanoparticles (Pt) and blocking reagent horseradish peroxidase (HRP) as enhancers. A Nafion®-graphene-coated electrode was first modified with an electrochemical probe of methylene blue (MB) through elect...

journal_title：Biotechnology and applied biochemistry

authors： Sun T,Wang L,Li N,Gan X

更新日期：2011-07-01 00:00:00

abstract：:Agrobacterium rhizogenes-mediated hairy-root cultures are a very promising alternative to the biotechnological exploitation of plant cell cultures. Their characteristic capacity for secondary-metabolite production, inherent genetic stability reflected in stable productivity and the possibility of genetic manipulation ...

journal_title：Biotechnology and applied biochemistry

authors： Mishra BN,Ranjan R

更新日期：2008-01-01 00:00:00

abstract：:The effects of anion-exchange polymeric matrices on endotoxin removal from albumin and gamma-globulin solutions are evaluated. The positively charged cellulose acrylic media carrying DEAE or QAE functional groups remove significant amounts of endotoxin from tap water, but are less effective in protein solutions. With ...

journal_title：Biotechnology and applied biochemistry

authors： Hou KC,Zaniewski R

更新日期：1990-06-01 00:00:00

abstract：:Penicillium ochrochloron Biourge, which was isolated from rotten sweet potato, can produce plant cell wall-degrading enzymes (PCWDEs) with high viscosity reducing capability for ethanol production using fresh sweet potato tubers as feedstock. The enzyme preparation was characterized by a broad enzyme spectrum includin...

journal_title：Biotechnology and applied biochemistry

authors： Huang Y,Jin Y,Shen W,Fang Y,Zhang G,Zhao H

更新日期：2014-07-01 00:00:00