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 haemoglobin (HbNO) is reported. Addition of the two drugs to HbNO shifted the conformational equilibrium from the high- to the low-affinity form of the ligated tetramer, as observed for 2,3-D-glycerate bisphosphate, the physiological modulator of haemoglobin action. The effect of chlorpromazine and trifluoperazine on the EPR-spectroscopic properties of HbNO was enhanced by inositol hexakisphosphate. The binding of neuroleptics to ferrous human adult haemoglobin may represent an important undesirable side effect. In fact, oxygen affinity for ferrous human adult haemoglobin decreases on increasing chlorpromazine and trifluoperazine concentration. In addition, red blood cells may act as neuroleptic scavengers.
journal_name
Biotechnol Appl Biochemjournal_title
Biotechnology and applied biochemistryauthors
Ascenzi P,Bertollini A,Coletta M,Lucacchini Asubject
Has Abstractpub_date
1999-10-01 00:00:00pages
185-7issue
2eissn
0885-4513issn
1470-8744journal_volume
30pub_type
杂志文章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
pub_type: 杂志文章
doi:
更新日期:1990-06-01 00:00:00
abstract::alpha-Cyclodextrin (CD) was converted by Bacillus macerans cyclodextrin glucanotransferase into highly insoluble high-amylose starch with a low average degree of polymerization (56-73), in yields as high as 78% over a wide range of temperatures (25-70 degreesC). Ability to undergo this conversion was highly concentrat...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1998-12-01 00:00:00
abstract::Glycoprotein D (gD2) is the most important candidate antigen for herpes simplex virus type 2 (HSV-2) vaccine development. Establishment of a stable eukaryotic cell line to overexpress gD2 and an efficient purification process to purify is essential for the development of subunit vaccine against HSV-2. The DNA sequence...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1386
更新日期:2016-05-01 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::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
pub_type: 杂志文章
doi:
更新日期:1986-12-01 00:00:00
abstract::Most large-scale microbial production of recombinant proteins are based on Escherichia coli, yeasts, or filamentous fungi systems. Using eukaryotic hosts, antibody fragments are generally expressed by targeting to the secretory pathway. This enables not only efficient disulfide bond formation but also secretion of sol...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.67
更新日期:2012-01-01 00:00:00
abstract::An inducible esterase has been isolated from a liquid culture of Aspergillus niger grown on sugar-beet pulp. The enzyme was active on methyl esters of cinnamic acids, caffeic > p-coumaric > ferulic, and is therefore termed a cinnamoyl esterase. The enzyme was not active on methyl sinapinate, a good substrate for ferul...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
abstract::The gene (lacS) encoding a thermostable beta-galactosidase enzyme (Ss beta-gal) from the archaebacterium Sulfolobus solfataricus has been cloned and expressed in simian CV1 and murine NIH3T3 cell lines. The recombinant protein is an active enzyme that shows the same properties of thermophilicity and thermostability as...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1994-04-01 00:00:00
abstract::Optison(R) is an ultrasound contrast agent, consisting of gas-filled microspheres surrounded by a solid shell of heat-denatured human albumin. Size-distribution measurements of these microspheres are a critical stability indicating factor, because loss of encapsulated gas eliminates ultrasound contrast activity. Compo...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1999-12-01 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
pub_type: 杂志文章
doi:10.1002/bab.1495
更新日期:2017-05-01 00:00:00
abstract::Although most PCRs would produce proper PCR products when first tried, a general optimization is required to yield the best results. This optimization is often achieved by changing one factor at a time. However, this may lead to suboptimal results, since interactions between conditions are difficult to detect with thi...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/BA20040192
更新日期:2005-10-01 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
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract::The present study elaborates a cost-effective and transfectant-free method for generating recombinant Bombyx mori (silkworm) nucleopolyhedrovirus in silkworm larvae and pupae by injecting invasive Escherichia coli carrying BmBacmid [BmNPV (B. mori nucleopolyhedrovirus)-Bacmid] into larval haemocoel. Up to 109 PFU (pla...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/BA20100148
更新日期:2010-12-01 00:00:00
abstract::Chronic myelogenous leukemia (CML) is a hematologic malignancy characterized by excessive growth of myeloid cells and their progenitors. The proportion of spectrin dimers compared to tetramers extracted from membranes at 4 degrees C, under low ionic strength conditions, increased in CML erythrocytes. These also displa...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章,评审
doi:
更新日期:1990-10-01 00:00:00
abstract::High-abundant plasma proteins pose a challenge in a large number of proteomics-based technologies. Depletion of these high-abundant proteins has proven to be a fruitful strategy to circumvent masking of lower-abundant proteins that could serve as valuable biomarker candidates. However, current strategies often do not ...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/BA20100041
更新日期:2010-06-09 00:00:00
abstract::Heparin is a widely used clinical anticoagulant that is prepared from pig intestine. A contamination of heparin in 2008 has led to a reexamination of animal-derived pharmaceuticals. A bioengineered heparin prepared by bacterial fermentation and chemical and enzymatic processing is currently under development. This stu...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1042
更新日期:2012-11-01 00:00:00
abstract::Bacillus subtilis strain DM-03, which is isolated from starter culture used for the production of alcohol by local Assam tribes, grows optimally at 52-55 degrees C and secretes a significant amount of alpha-amylase at pH 8.0 into the culture media. This alpha-amylase, purified by ion-exchange, gel-filtration and rever...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/BA20040034
更新日期:2004-12-01 00:00:00
abstract::The recombinant plasmid pNCO937 (8.1 kbp) containing a Streptomyces sp. cholesterol oxidase gene was introduced into Streptococcus thermophilus by electrotransformation. Transformation frequency was 7.2 x 10(5) colony forming units/micrograms of DNA. The presence of the cholesterol oxidase gene in S. thermophilus was ...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1991-04-01 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
pub_type: 杂志文章
doi:
更新日期:1991-02-01 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::Cell proliferation is a complex and important event in atherosclerosis, aging and cancer, and is under the control of signalling pathways. These signalling pathways in turn are effected by the presence of a number of chemicals. For this purpose, we have checked the effect of two chemicals on the proliferation of skin ...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:
更新日期:1999-06-01 00:00:00
abstract::The sialidase gene from Brevibacterium casei was cloned in pET28a and overexpressed as a histidine-tagged protein in Escherichia coli BL21(DE3). The histidine-tagged sialidase protein was purified and characterized from the crude cell extracts of isopropyl-β-d-thiogalactopyranoside-induced cells using Ni-NTA agarose c...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1002/bab.1475
更新日期:2017-03-01 00:00:00
abstract::Recently, hPNAS-4 [human PNAS-4; also known as C1orf121 (Genbank accession number NP-057160)] was reported to be a novel pro-apoptotic protein in mammalian cells. However, at present there is little information about hPNAS-4 and its molecular mechanisms. In our present studies, the hPNAS-4 gene was first cloned into t...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/BA20090111
更新日期:2010-02-11 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::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
abstract::A kinetic model was developed to describe recombinant human protein disulphide isomerase (rhPDI)-assisted folding of a substrate protein, C125A recombinant human interleukin-2 (C125A rhIL-2). A series of progress curves showing native C125A rhIL-2 formation under different reaction conditions were generated. Non-linea...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/ba20020057
更新日期:2003-04-01 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::Production of His-BbST [hexahistidine-tagged BbST (bubaline somatotropin)] by auto-induction in high-density shake-flask cultures coupled with a single-step, on-column purification and refolding strategy is described here. To optimize expression of BbST, different media and expression conditions were tested. The highe...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/BA20060154
更新日期:2007-05-01 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
pub_type: 杂志文章
doi:10.1002/bab.1190
更新日期:2014-07-01 00:00:00
abstract::The human placenta is a rich raw material for production of many biopharmaceutical products. Here we describe a co-purification process for the production of four different proteins from haemolysed human placenta blood: IgG, catalase (Cat), superoxide dismutase (Sod) and albumin (Alb). The process can be divided in tw...
journal_title:Biotechnology and applied biochemistry
pub_type: 杂志文章
doi:10.1042/ba20010023
更新日期:2001-12-01 00:00:00