Production and properties of a raw-starch-degrading amylase from the thermophilic and alkaliphilic Bacillus sp. TS-23.

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：:Mouse and human erythrocytes are inherently different with respect to slow dialysis encapsulation used in preparing carrier erythrocytes. Fluorescein isothiocyanate (FITC)-dextran was added to five different stages of the encapsulation process to discern when endocytic vesiculation occurred. Mouse erythrocytes were mu...

journal_title：Biotechnology and applied biochemistry

authors： DeLoach JR,Droleskey RE

更新日期：1993-08-01 00:00:00

abstract：:The protective antigen (PA) component of anthrax toxin mediates delivery of either lethal factor (LF) or oedema factor into the cytosol of mammalian cells. The N-terminal domain of LF(1-254) (amino acids 1-254 of LF) binds to PA and, when fused to heterologous proteins, delivers such proteins into the cytosol. In the ...

journal_title：Biotechnology and applied biochemistry

authors： Sharma M,Khanna H,Arora N,Singh Y

更新日期：2000-08-01 00:00:00

abstract：:We studied, for the first time, characterization of the invertase expressed in the methylotrophic yeasts Hansenula polymorpha and Pichia pastoris in terms of enzyme conformational stability and structural behaviour induced by temperature as a function of pH using enzymic assays, differential scanning calorimetry, fluo...

journal_title：Biotechnology and applied biochemistry

authors： Acosta N,Beldarraín A,Rodríguez L,Alonso Y

更新日期：2000-12-01 00:00:00

abstract：:Fetuin is a plasma glycoprotein widely distributed in mammals. It has been used as a model protein for structural analyses and investigations into the biological properties of glycoproteins. A convenient one-step procedure for biospecific isolation of fetuin from fetal bovine serum was developed on the basis of wheatg...

journal_title：Biotechnology and applied biochemistry

authors： Cartellieri S,Hamer O,Helmholz H,Niemeyer B

更新日期：2002-04-01 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 gene of elastase strain K (elastase from Pseudomonas aeruginosa strain K), namely HindIII1500PstI, was successfully sequenced to contain 1497 bp. The amino acid sequence, deduced from the nucleotide sequence, revealed that the mature elastase consists of 301 amino acids, with a molecular mass of 33.1 kD...

journal_title：Biotechnology and applied biochemistry

authors： Wong CF,Salleh AB,Basri M,Abd Rahman RN

更新日期：2010-09-01 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 combination of IL-2 (interleukin-2) and GM-CSF (granulocyte/macrophage colony-stimulating factor) has been broadly studied in antitumour immune therapy, but its efficacy is uncertain. To better exert the activities of the two cytokines and study them in a mouse model, we have constructed a bifunctional protein, hI...

journal_title：Biotechnology and applied biochemistry

authors： Wen Q,Ma L,Luo W,Zhou MQ,He D,Lin Y,Wu ZQ,He XW,Wang JF,Wang XN

更新日期：2008-05-01 00:00:00

abstract：:Neuroblastoma (NB) is an embryonic solid tumor derived from precursor cells of the sympathetic nervous system, and accounts for 11% of childhood cancers and around 15% of cancer deaths in children. SUMOylation and deSUMOylation are dynamic mechanisms regulating a spectrum of protein activities. The SUMO proteases (SEN...

journal_title：Biotechnology and applied biochemistry

authors： Xiang-Ming Y,Zhi-Qiang X,Ting Z,Jian W,Jian P,Li-Qun Y,Ming-Cui F,Hong-Liang X,Xu C,Yun Z

更新日期：2016-05-01 00:00:00

abstract：:The extensive literature on natural antimicrobial systems in animals, plants, and microorganisms is surveyed and particular systems are discussed, viz., the peroxidase systems in saliva and milk, singlet oxygen in the phagosome, cecropins and attacins in insects, complement, lysozyme and, to a limited extent, phytoale...

journal_title：Biotechnology and applied biochemistry

authors： Banks JG,Board RG,Sparks NH

更新日期：1986-04-01 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：:The use of glutaraldehyde (GTA) for cross-linking biological tissue implants has a number of undesirable side effects, including cytotoxicity and induction of calcification. In an attempt to find an improved cross-linking agent for tissue implants, we have evaluated a number of cross-linking procedures shown previousl...

journal_title：Biotechnology and applied biochemistry

authors： Simmons DM,Kearney JN

更新日期：1993-02-01 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 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：:Higher thermostability or acid resistance for fungal α-amylase will help to improve the sugar-making process and cut down the production costs. Here, the thermostability or acid resistance of Rhizopus oryzae α-amylase (ROAmy) was significantly enhanced by site-directed evolution based on multiple sequence alignment (M...

journal_title：Biotechnology and applied biochemistry

authors： Li S,Yang Q,Tang B

更新日期：2020-07-01 00:00:00

abstract：:Some metabolic inhibitors, mevastatin (MVS), chlorocholine chloride (CCC), sodium pyrophosphate (NaPP) and D,L-glyceraldehyde (DLG), were respectively added into the suspension cultures of the yew Taxus chinensis var. mairei at the late phase of cell growth to study isopentenyl pyrophosphate (IPP) biosynthesis. The co...

journal_title：Biotechnology and applied biochemistry

authors： Wang YD,Yuan YJ,Lu M,Wu JC,Jiang JL

更新日期：2003-02-01 00:00:00

abstract：:The aspartic proteinase gene of Mucor pusillus rennin expressed in Pichia pastoris was characterized in terms of structural and conformational stability induced by temperature. This enzyme is 12% glycosylated, with a similar specific activity to the native fungal enzyme. The secondary structure determined by CD is mai...

journal_title：Biotechnology and applied biochemistry

authors： Beldarraín A,Acosta N,Montesinos R,Mata M,Cremata J

更新日期：2000-04-01 00:00:00

abstract：:In this study, various constructs and hosts were used to produce high levels of cecropin B2 (cecB2). To mitigate cecB2's toxic inhibition of host cells, various cecB2 constructs were built. Results showed that the combination of a chitin-binding domain and an intein self-cleavage motif in front of cecropin B2, without...

journal_title：Biotechnology and applied biochemistry

authors： Fang YT,Lai WS,Liu JH,Liu YC

更新日期：2019-03-01 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：:Limit of detection (LOD), limit of quantification, and the dynamic range of detection of hepatitis B surface antigen antibody (anti-HBs) using a surface plasmon resonance (SPR) chip-based approach with Pichia pastoris-derived recombinant hepatitis B surface antigen (HBsAg) as recognition element were established throu...

journal_title：Biotechnology and applied biochemistry

authors： Tam YJ,Zeenathul NA,Rezaei MA,Mustafa NH,Azmi MLM,Bahaman AR,Lo SC,Tan JS,Hani H,Rasedee A

更新日期：2017-09-01 00:00:00

abstract：:Acid phosphatase (EC 3.1.3.2) from Vigna aconitifolia seeds was purified to apparent homogeneity by using ammonium sulfate fractionation and cation-exchange chromatography [carboxymethyl (CM) cellulose]. The enzyme was 228-fold purified with 14.6% recovery. Analytical gel filtration chromatography on Sephadex G-200 co...

journal_title：Biotechnology and applied biochemistry

authors： Anand A,Srivastava PK

更新日期：2014-03-01 00:00:00

abstract：:A decrease in the specific activity of an enzyme is commonly observed when the enzyme is inappropriately handled or is stored over an extended period. Here, we reported a functional transition of an FMN-bound diaphorase (FMN-DI) that happened during the long-term storage process. It was found that FMN-DI did not simpl...

journal_title：Biotechnology and applied biochemistry

authors： Huston S,Collins J,Sun F,Zhang T,Vaden TD,Zhang YP,Fu J

更新日期：2018-05-01 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：: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 L-arginine uptake of resting platelets from type-2 diabetic patients and control subjects was measured and the kinetic parameters defined. The effect of platelet stimulation with agonists was also investigated. Kinetic studies showed that the K(m) value for L-arginine transport was not different in patients compar...

journal_title：Biotechnology and applied biochemistry

authors： Signorello MG,Giovine M,Pascale R,Cataldi L,Bordone C,Benatti U,Leoncini G

更新日期：2001-08-01 00:00:00

abstract：:In the present study, the effect of the neuroleptics chlorpromazine (2-chloro-N,N-dimethyl-10H-phenothiazine-10-propanamine) and trifluoperazine {10-[3-(4-methylpiperazin-l-yl)-propyl]-2-trifluoromethyl)-10-H- [phenothiazine}-10H-phenothiazine¿ on the EPR-spectroscopic properties of ferrous human adult nitrosylated ha...

journal_title：Biotechnology and applied biochemistry

authors： Ascenzi P,Bertollini A,Coletta M,Lucacchini A

更新日期：1999-10-01 00:00:00

abstract：:Marine biomass, especially the algal biomass, is currently considered to be one of the most potential candidates for biofuels conversion during the development of biomass utilization. In this study, a diluted sulfuric acid pretreatment method was established for biobutanol from red algal biomass Gelidium amansii using...

journal_title：Biotechnology and applied biochemistry

authors： Hong Y,Chen C,Wu YR

更新日期：2020-09-01 00:00:00

abstract：:Metal prostheses of artificial joints undergo wear, producing numerous metal particles and ions, such as Cr3+ . Cr3+ is considered a key factor leading to aseptic loosening. Many studies focus on the effect of Cr3+ on osteoblasts; however, little is known about the effect of Cr3+ on the B-cell maturation antigen (BCMA...

journal_title：Biotechnology and applied biochemistry

authors： Li DH,Yang Q,Zhou JS,Zhang ZW,Miao MY,Yang SS,Xu WD

更新日期：2017-09-01 00:00:00

abstract：:Complex-formation between a truncated staphylococcal Protein A produced in Escherichia coli and a native E coli molecular chaperone, DnaK, can be used for the purification of DnaK by IgG-affinity chromatography. The half-time constant for in vitro formation of the Protein A-DnaK complex is about 14 min. Complex-format...

journal_title：Biotechnology and applied biochemistry

authors： Gustavsson K,Bergman T,Veide A,Enfors SO

更新日期：1997-04-01 00:00:00