Abstract:
:Stationary and time-dependent fluorescence were measured for a donor/ acceptor (DA) pair bound to membrane proteins of bovine erythrocyte ghosts. The donor N-(p-(2-benzoxazolyl)phenyl)-maleimide (BMI) and the acceptor fluram bind to SH- and NH2-residues, respectively. The fluorescence spectra and the time-dependent emission were consistent with radiationless fluorescence energy transfer (RET). Band3 protein is the only membrane spanning protein with accessible SH-groups for the coupling of BMI molecules, and therefore only acceptor binding sites on the same band3 protein were counted by the RET measurements performed. A density of RET-effective acceptor binding sites c = 0.072 nm-2 was calculated on the basis of the two-dimensional Förster-kinetics.
journal_name
Gen Physiol Biophysjournal_title
General physiology and biophysicsauthors
Fuchs HM,Hof M,Mudogo V,Lawaczeck Rsubject
Has Abstractpub_date
1997-03-01 00:00:00pages
15-28issue
1eissn
0231-5882issn
1338-4325journal_volume
16pub_type
杂志文章abstract::Nucleosome sliding and nucleosome digestion are two main ways for regulating gene transcription. We constructed three characteristic parameters (CP) based on the information of CG0, CG1 and CG2 motifs, and used these parameters to analyze the sliding trend of -1 and +1 nucleosomes around TSS of genes with NFR in yeast...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2020002
更新日期:2020-05-01 00:00:00
abstract::The upregulation of proprotein convertase subtilisin/kexin type 9 (PCSK9) was reported to be involved in regulating the levels of inflammatory markers and apoptosis in macrophages. This study aims to investigate the function and regulation of PCSK9 in myocardial ischaemia. The results of our study showed dramatically ...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb-2019057
更新日期:2020-03-01 00:00:00
abstract::Effects of haloperidol on L-type CaV1.2 channel were studied. Calcium current was measured in whole cell patch-clamp using calcium as a charge carrier. Inhibition by haloperidol was investigated in CaV1.2 channel natively expressed in rat cardiac myocytes and recombinant cardiac (CaV1.2a) and vascular (CaV1.2b) splice...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2009_03_249
更新日期:2009-09-01 00:00:00
abstract::A new theory termed "tunnel-acid-group-potential" (TAGPT), explaining the effect of pHo and pH(i) on ion conductance through different membrane channels, is presented. It is suggested that shifts in pHo and pH(i) lead to changes in values of negative charges generated by acid groups of side chains of some polar (Glu-,...
journal_title:General physiology and biophysics
pub_type: 杂志文章,评审
doi:
更新日期:1996-10-01 00:00:00
abstract::Sodium nitroprusside (SNP) is a nitric oxide (•NO) donor in vitro and in vivo. In this paper the time variation of the intracellular water proton nuclear magnetic resonance (NMR) effective relaxation time T'(2a) in SNP-treated human erythrocyte suspensions, containing 10 mM membrane impermeable paramagnetic MnCl2, has...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2010_04_373
更新日期:2010-12-01 00:00:00
abstract::Fusion of neuraminidase or trypsin pretreated human erythrocytes and untreated cells was performed. The obtained doublets had a permanent dipole moment which disappeared as a function of time. Since the dipole moment disappearance is due to protein interdiffusion the lateral diffusion constant may be determined. This ...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:1984-06-01 00:00:00
abstract::The role of vascular endothelial growth factor (VEGF) in chronic stress and neurodevelopmental disorders is of growing research interest. Here we show that post-weaning isolation rearing of rats decreased gene expression of VEGF in the hippocampus. Gene expression of VEGF upstream regulator fibroblast growth factor-2 ...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2019019
更新日期:2019-07-01 00:00:00
abstract::The passive mechanical properties of whole muscle in active and nonactive states are compared. The experimental results are presented as stress-strain curves, which are analyzed in the framework of the current theoretical background [viz. the freely-jointed chain model (FJCM) and the worm-like chain model (WLCM)] in a...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:1999-06-01 00:00:00
abstract::Environmental exposure to modern microwave telecommunication electromagnetic fields (EMFs) has increased to unprecedented levels with consequent health complaints and concerns. Many studies have already reported genotoxic effects on a variety of organisms and cell/tissue types. Human peripheral blood lymphocytes from ...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2019032
更新日期:2019-09-01 00:00:00
abstract::Various techniques have been used (UV absorbance and fluorescence spectroscopy, polarised UV fluorescence microscopy, viscosimetry, electrophoresis and isoelectric focusing, superprecipitation, etc.) As suggested by several parameters, denervation interferes with the structure of actin by producing local conformation ...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:1987-06-01 00:00:00
abstract::CRM197, cross-reacting material 197, is a mutant of diphtheria toxin (DTx). CRM197 is used in pharmacology as a carrier protein. It has been recently shown that CRM197 causes breakdown in actin filaments. In order to show intracellular localization of CRM197 and visualize cell structure via actin cytoskeleton, endothe...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2017006
更新日期:2017-10-01 00:00:00
abstract::The fluorescent probe chlortetracycline (CTC) was used to investigate redistribution of intracellular Ca2+ in concanavalin A (Con A)-stimulated human peripheral blood lymphocytes. The addition of the mitogen to CTC-equilibrated lymphocytes induced (within 10 to 15 minutes) a Con A-concentration dependent decrease in C...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:1983-10-01 00:00:00
abstract::This study investigated time-dependent variations in the activities of adenosine deaminase (ADA), an adenosine-metabolizing enzyme, and myeloperoxidase (MPO), an oxidation reaction-catalyzing enzyme, in control and streptozotocin (STZ)-induced diabetic rat liver. The animals were sacrificed at six different times of d...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:2008-03-01 00:00:00
abstract::Malate dehydrogenases (MDH, L-malate:NAD oxidoreductase, EC 1.1.1.37), catalyze the NAD/NADH-dependent interconversion of the substrates malate and oxaloacetate. This reaction plays a key part in the malate/aspartate shuttle across the mitochondrial membrane, and in the tricarboxylic acid cycle within the mitochondria...
journal_title:General physiology and biophysics
pub_type: 杂志文章,评审
doi:
更新日期:2002-09-01 00:00:00
abstract::On the basis of values corresponding to concentrations exhibiting 50% inhibition of platelet aggregation induced with different stimuli and 50% inhibition of arachidonic acid liberation and thromboxane generation, we compared the antiplatelet effect of two cationic amphiphilic drugs--chloroquine and dithiaden. Compare...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:1999-10-01 00:00:00
abstract::Mitochondrial nucleoids (hereafter nucleoids) contain genetic information, mitochondrial DNA, prerequisite for mitochondrial functioning, particularly information required for mitochondrial electron transport. To understand nucleoid functioning, it is imperative to know its ultrastructure and dynamics in the context o...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2016008
更新日期:2016-07-01 00:00:00
abstract::Homocysteine (Hcys) may be implicated in different diseases, especially in cardiovascular illnesses. The most reactive form of Hcys is its cyclic thioester-homocysteine thiolactone (HTL), which is formed in plasma and represents up to 0.29% of plasma total Hcys. Recently, it has been observed that Hcys and HTL may mod...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2010_02_186
更新日期:2010-06-01 00:00:00
abstract::Salts of divalent cadmium are well-known human mutagens and carcinogens. In the present work, the ability of vitamin C to modulate genotoxic effects of cadmium chloride on human lymphocytes was assessed using single cell gel electrophoresis (comet assay). Vitamin C at 20 and 100 micromol/l and cadmium at 5, 30 and 150...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:2000-12-01 00:00:00
abstract::We studied physical properties of the monolayers and bilayer lipid membranes (BLM) formed by calix[6]arene carboxylic acid derivative (CX) and its mixtures with diphytanoylphosphatidylcholine (DPhPC) by means of measurement surface pressure, surface dipole potential and electrostriction. CX forms stable monolayers at ...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2013024
更新日期:2013-06-01 00:00:00
abstract::This study was designed to investigate the possible effectiveness of chronic resveratrol administration on redox state, inflammatory mediators and apoptosis rate in diabetic rats. Male Wistar rats were divided into four groups (n = 6): normal control, diabetic control, normal rats treated with resveratrol, and diabeti...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2012_039
更新日期:2012-12-01 00:00:00
abstract::Thermal inactivation of peroxidase (POD) in an extract of Picea omorika (Pancić) Purkyne needles initiated by heat treatment was studied. This is the first study of this kind on a conifer species. Non-linear regression analysis was applied on the inactivation rate data, combining Mitscherlich and Arrhenius equations, ...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2009_01_78
更新日期:2009-03-01 00:00:00
abstract::Recent research has supported a potential role of immune pathology in the etiopathogenesis of schizophrenic. In the CNS various viruses were identified in the brains of schizophrenic patients. Pro-inflammatory cytokines were found to be associated with the stage of disease. Microglial cells were reported to be activat...
journal_title:General physiology and biophysics
pub_type: 杂志文章,评审
doi:
更新日期:2009-01-01 00:00:00
abstract::The dynamics of a bioreactor with a variable volume and an active solute flux based on the thermodynamics of irreversible processes and stability analysis was studied. The active solute flux may control both the bioreactor volume and the hydrostatic pressure as well as the concentration of the solute inside the cell i...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:1988-02-01 00:00:00
abstract::The effect of membrane composition on ethanol partitioning into lipid bilayers was assessed by headspace gas chromatography. A series of model membranes with different compositions have been investigated. Membranes were exposed to a physiological ethanol concentration of 20 mmol/l. The concentration of membranes was 2...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2009_02_140
更新日期:2009-06-01 00:00:00
abstract::The role of C-type natriuretic peptide (CNP) in the gastrointestinal tract is still unclear. This study was designed to investigate the effect of CNP on barium current (I(Ba)) through the L-type calcium channel in gastric antral myocytes of guinea pigs. The whole-cell patch clamp technique was performed in gastric ant...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:2006-12-01 00:00:00
abstract::For characterization of Na(+),K(+)-ATPase, a key enzyme involved in maintenance of intracellular sodium homeostasis, expression of alpha1 subunit and the ATP- and Na(+)-binding properties were investigated by Western blot analysis and by enzyme kinetics, respectively. Previous studies documented time-dependent alterat...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2010_03_266
更新日期:2010-09-01 00:00:00
abstract::The effect of K+ and Na+ on the properties of DNA aptamers that selective binds to fibrinogen (FIBRI) and heparin (HEPA) exosites of human alpha-thrombin was studied by circular dichroism (CD). The complexes of FIBRI-K+ were slightly more stable than HEPA-K+. However, lower stability was observed for HEPA-K+ at presen...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:2008-12-01 00:00:00
abstract::The aim of this study was to assess whether an endothelin-A receptor (ETA-R) blocker, BQ123, or an endothelin-B (ETB-R) receptor blocker, BQ788, influences nuclear factor kappa beta (NF-κB) pathway, free radical generation, tumor necrosis factor-alpha (TNF-α) concentration, and glutathione redox system in hearts obtai...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:10.4149/gpb_2012_031
更新日期:2012-09-01 00:00:00
abstract::Participation of electrostatic and other noncovalent interactions in the binding of tricyclic antidepressants (TCAs) to the lipid bilayers was estimated from pH-dependencies of imipramine, desipramine, amitriptyline and nortriptyline binding to the lipid bilayers prepared from different phospholipids, both electroneut...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:2005-06-01 00:00:00
abstract::Analogs of carbonyl cyanide phenylhydrazone providing no reaction with nucleophilic groups and lacking acidobasic properties, respectively, were synthesized for study of mechanism of uncoupling effect on oxidative phosphorylation. Their retention, influence on proton transport, abilities to SH--groups modify and to st...
journal_title:General physiology and biophysics
pub_type: 杂志文章
doi:
更新日期:1988-10-01 00:00:00