Abstract:
:We report a novel surface plasmon resonance (SPR) biosensor that uses the full-length Det7 phage tail protein (Det7T) to rapidly and selectively detect Salmonella enterica serovar Typhimurium (S. Typhimurium). Det7T, which was obtained using recombinant protein expression and purification in Escherichia coli, demonstrated a size of ∼75 kDa upon SDS-PAGE and was homotrimeric in its native structure. Microagglutination and transmission electron microscopy (TEM) data revealed that the protein specifically bound to the host, S. Typhimurium, but not to nonhost E. coli K-12 cells. The observed protein agglutination occurred over a concentration range of 0.8-24.6 µg/mL. The Det7T proteins were immobilized on gold-coated surfaces using amine-coupling to generate a novel Det7T-functionalized SPR biosensor, wherein the specific binding of these proteins with bacteria was detected by SPR. We observed rapid detection of (∼20 Min) and typical binding kinetics with S. Typhimurium in the range of 5 × 104 -5 × 107 CFU/mL, but not with E. coli at any tested concentration, indicating that the sensor exhibited recognition specificity. Similar binding was observed with 10% apple juice spiked with S. Typhimurium, suggesting that this strategy provides promise for the rapid, real-time, and selective monitoring of target microorganisms in the environment, and thus has great potential for supporting health by enabling early disease prevention.
journal_name
Biotechnol Appl Biochemjournal_title
Biotechnology and applied biochemistryauthors
Hyeon SH,Lim WK,Shin HJdoi
10.1002/bab.1883subject
Has Abstractpub_date
2020-01-08 00:00:00eissn
0885-4513issn
1470-8744pub_type
杂志文章abstract::Mouse band-3 crosslinked carrier erythrocytes have been prepared. [125I]Carbonic anhydrase (CA) has been encapsulated into mouse erythrocytes. Then, loaded erythrocytes were labelled with 51Cr. Eventually, these doubly labelled cells were crosslinked with band-3 crosslinking reagents. [125I]CA was shown to have cytoso...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1999-02-01 00:00:00
abstract::HIV stimulates strong immune CD8(+) cytotoxic T lymphocytes (CTL) response in infected people, despite causing an immunodeficiency. It has been demonstrated that this response could be very important for the control of the virus. We have shown previously that a recombinant fowlpox virus (rFWPV), expressing the multi-e...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/ba20020027
更新日期:2002-12-01 00:00:00
abstract::Considering the widespread contaminations of food products with mycotoxins, it is important to develop, robust, time- and cost-effective detection methods. We developed and optimized an immunoassay using a continuous flow system for the detection of zearalenone (ZEN). The assay was performed in a flow mode using an au...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1876
更新日期:2020-05-01 00:00:00
abstract::A microbial fuel cell is a sustainable and environmental-friendly device that combines electricity generation and wastewater treatment through metabolic activities of microorganisms. However, low power output from inadequate electron transfer to the anode electrode hampers its practical implementation. Nanocomposites ...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1928
更新日期:2020-04-21 00:00:00
abstract::Three peptides complementary to exposed regions of two low-M(r) phosphotyrosine protein phosphatase isoenzymes and of the acylphosphatase muscle isoenzyme have been synthesized. Each peptide was synthesized on two different types of resins; the peptides were anchored to the resins by amide linkages. The peptide resins...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1994-10-01 00:00:00
abstract::Flat panels are the most spread type of photobioreactors for studying light effects on a microalgae culture. Their low thickness, usually between 1 and 3 cm, aims at ensuring light homogeneity across the culture. Yet because optical density has to remain very low, studies are still limited to low cell density cultures...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1894
更新日期:2020-02-03 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
pub_type: 杂志文章
doi:10.1002/bab.1716
更新日期:2019-03-01 00:00:00
abstract::A three-layered simulation methodology is described that rapidly evaluates biomanufacturing process options. In each layer, inferior options are screened out, while more promising candidates are evaluated further in the subsequent, more refined layer, which uses more rigorous models that require more data from time-co...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/ba20070018
更新日期:2007-10-01 00:00:00
abstract::The aim of the present study was to find disruption methods that allow fast and reproducible measurement of intracellular recombinant proteins with potential for on-line application. Production of rhSOD (recombinant human superoxide dismutase) by Escherichia coli was used as a model. Three methods of cell disruption, ...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/BA20030143
更新日期:2004-08-01 00:00:00
abstract::Osteosarcoma (OS) remains the most frequent primary malignant bone tumor in adolescents. However, the molecular cause of the disease is poorly elucidated. In the present study, we primarily found that translationally controlled tumor protein (TCTP) was overexpressed in human OS tissues and cell lines. To investigate t...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1335
更新日期:2016-01-01 00:00:00
abstract::The production of rabies virus from baby hamster kidney-Ankara66 (BHK-An(66), HUKUK 99050302) monolayer cells was examinedin a packed-bed reactor containing non-woven polyester fabric (NWPF)discs. At first, growth characteristics of the cells were determined instatic culture. The suspension culture studies were realiz...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/ba20000052
更新日期:2001-06-01 00:00:00
abstract::Tuberculosis has long been the scourge of humanity, claiming millions of lives. The family of PE_PGRS gene has been attributed to the Mycobacterium tuberculosis pathogenesis over the past few decades. The gene of PE_PGRS family proteins are most often clustered in a region of the genome often as overlapping genes and ...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章,评审
doi:10.1002/bab.1266
更新日期:2015-03-01 00:00:00
abstract::Expression of the VP2 gene of autonomous parvoviruses in insect cells with the use of the baculovirus system has led to the production of virus-like particles (VLPs) formed by the self-assembly of VP2. These VLPs are expressed at high levels and can easily be purified by salt fractionation. They are highly immunogenic...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1999-04-01 00:00:00
abstract::In our work, one-step electro-deposition method was adopted to produce polyaniline (PANI) and functional multiwalled carbon nanotubes (f-MWCNTs) films on glass carbon electrodes, and the modified electrodes were applied as an electrochemical sensor for determination of 10-hydroxycamptothecine (10-HCPT). The f-MWCNTs w...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.2041
更新日期:2020-09-24 00:00:00
abstract::Immobilized metal affinity chromatography (IMAC) is widely used for the production of recombinant proteins for a variety of applications; however, a number of challenges are typically encountered by researchers depending on the properties of the specific proteins in question. Here, we describe technical issues we have...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.24
更新日期:2011-05-01 00:00:00
abstract::Amylin has been implicated in type II diabetes because of its inherent property to misfold into toxic aggregates. Although it has been shown that amylin interacts with cell membranes, no study to date has monitored the association process using a direct approach. The present study uses confocal microscopy to identify ...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1113
更新日期:2013-07-01 00:00:00
abstract::Among the heat-shock proteins (HSPs) induced in response to heat-shock (HS) in all organisms, the low-molecular-mass (LMM) HSPs are the most abundant and unique in plants. The HSP genes at the transcriptional and the translational levels have been well-characterized; however, relatively little is known about the physi...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章,评审
doi:
更新日期:1994-02-01 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
pub_type: 杂志文章
doi:10.1002/bab.1756
更新日期:2019-09-01 00:00:00
abstract::Glutamate dehydrogenase (GDH) and alcohol dehydrogenase (ADH) have been encapsulated in sheep and human red blood cells (RBCs) by a hypotonic dialysis/isotonic resealing procedure. At a fixed enzyme level in the dialysis bag (100 units/ml of RBCs), a significant encapsulation yield was observed for ADH, both in human ...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1995-10-01 00:00:00
abstract::Mirabilis himalaica is an endangered medicinal plant species in the Tibetan Plateau. The two genes respectively encoding chalcone synthase (MhCHS) and chalcone isomerase (MhCHI) were isolated and characterized from M. himalaica. The sequence analysis revealed that the two genes were similar with their corresponding ho...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1376
更新日期:2016-05-01 00:00:00
abstract::The efficient enzyme-catalysed reaction of morpholines as model structures for bioactive compounds with para-dihydroxylated aromatic systems was carried out using the oxidoreductase laccase and atmospheric oxygen to produce eight novel morpholine-substituted aromatics. The laccase of Myceliophthora thermophila was use...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/BA20090219
更新日期:2009-11-13 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
pub_type: 杂志文章
doi:
更新日期:1993-08-01 00:00:00
abstract::Parkinson's disease (PD) is the most common neurodegenerative movement disorder and is characterized by the loss of dopaminergic neurons and the formation of eosinophilic intracytoplasmic inclusion bodies known as Lewy bodies. Although alpha-synuclein is known to be a pivotal factor implicated in the pathogenesis of P...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/ba20020004
更新日期:2002-08-01 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
pub_type: 杂志文章
doi:10.1002/bab.1030
更新日期:2012-09-01 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
pub_type: 杂志文章
doi:10.1002/bab.1907
更新日期:2020-07-01 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
pub_type: 杂志文章
doi:10.1002/bab.1761
更新日期:2019-07-01 00:00:00
abstract::Nicotine is a potent parasympathomimetic stimulant and an important natural alkaloid mainly found in the Nicotiana genus of plants. It can directly threaten ecological security and human health in tobacco waste, wastewater, and other forms of tobacco production. Therefore, it is the basis of nicotine pollution prevent...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1682
更新日期:2018-11-01 00:00:00
abstract::The development of lytic bacteriophages as therapeutic products is an attractive alternative to antibiotics. In this study, we evaluated the potential of phage tails for lysing Gram-positive bacteria. Phage P954, a well-characterized temperate staphylococcal phage, was found to adsorb to a large number of Staphylococc...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1052
更新日期:2012-11-01 00:00:00
abstract::This paper is concerned with the optimization of submerged culture conditions for mycelial growth and exo-biopolymer production by Auricularia polytricha by one-factor-at-a-time and uniform design (UD) methods. First, the one-factor-at-a-time method was adopted to investigate the effects of environmental factors (i.e....
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/BA20030020
更新日期:2003-10-01 00:00:00
abstract::Arylacetonitrile-hydrolyzing nitrilase (E.C. 3.5.5.5) of Alcaligenes sp. MTCC 10675 has been purified by up to 46-fold to homogeneity and 32% yield using ammonium sulfate fractionation, Sephacryl S-300 gel permeation, and anion exchange chromatography. The molecular weight of the native enzyme was estimated to be 520 ...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1192
更新日期:2014-07-01 00:00:00