Browsing Leicester School of Pharmacy by Publication Date
Now showing items 1-20 of 1020
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Automatic Time-Resolved Dielectric Spectrometer
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NMR and dielectric spectroscopy investigation of protein dynamical structure
(Article)The general approach to globular proteins dynamical structure investigation by NMR and time domain dielectric spectroscopy (TDDS) is presented. The information on macromolecular dynamical behavior in the case of these two ... -
Time domain dielectric spectroscopy with nonuniform signal sampling
(Article)The hardware and software designs for fast measurement of dielectric properties of different substances over a wide range of characteristic times (10−5–10−10 s) by means of time domain dielectric spectroscopy (TDS) are ... -
Lithium treatment of affective disorders; effects on the cyclic AMP and inositol phospholipid signalling pathways’
(Article)The effects of lithium (Li+) on the adenylyl cyclase and inositol phospholipid receptor signalling pathways were compared directly in noradrenergic and carbachol stimulated rat brain cortical tissue slices. Li+ was a ... -
Subcellular distribution of agonist-stimulated phosphatidylinositol synthesis in 1321 N1 astrocytoma cells
(Article)In an inositol-depleted 1321 N1 astrocytoma cell line, propranolol at 0.5 mM concentration and carbachol in the presence of Li+ induce a large increase (30-60-fold) in the amount of CMP-phosphatidate, the lipid substrate ... -
Hydrolysis of cell surface phosphatidylinositol leads to the delayed stimulation of inositol phospholipid synthesis in Bovine Aortic Endothelial Cells
(Article)In order to address the issue of how inositol phospholipid synthesis is controlled in a resting cell we looked for enhanced [3H]phosphatidylinositol (PtdIns) labelling in response to the hydrolysis of cell surface PtdIns. ... -
Investigation of molecular motions and interprotein interactions in solutions by NMR and TDDS.
(Article)Non-selective NMR relaxation of protein and water protons at various resonance frequencies as well as Time Domain Dielectric Spectroscopy (TDDS) were applied to study the molecular motions in lysozyme and myoglobin solutions. ... -
Investigation of molecular motion and interprotein interactions in solutions by TDDS: A comparison with NMR data
(Article)The results of dynamic protein behavior in solution studied by time domain dielectric spectroscopy (TDDS) are presented. The analyses for myoglobin solutions at concentrations 50, 120 and 150 mg/ml in the temperature ... -
The dynamic behavior of myoglobin molecules in solution.
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Phorbol ester-sensitive phospholipase D is mainly localized in the endoplasmic reticulum of BHK cells
(Article)The localization of phorbol ester-sensitive phospholipase D (PLD) in baby hamster kidney cells has been investigated by determining the subcellular distribution of the phosphatidylbutanol produced when the cells are incubated ... -
Time Domain Dielectric Spectroscopy: An Advanced Measuring System
(Article)The new time domain measurement system for dielectric measurements is described. The current model is comprised of an IBM PC-AT/486, ‘‘TDM-2,’’ a new time domain measurement system, a set of thermostabilized sample holders, ... -
Dielectric relaxation, molecular motion and interprotein interactions in myoglobin solution.
(Article)The results of the investigation of protein molecule dynamic in solution by Time Domain Dielectric Spectroscopy are presented. The horse myoglobin solutions in wide range of concentration from 0.6% to 54% at 20°C have been ... -
Evidence against an early signalling role for ceramide in Fas-mediated apoptosis
(Article)We have investigated whether the increases in ceramide levels that occur during apoptosis in SKW 6.4 cells induced by anti-Fas antibody depend on the activation of caspases. Using cells prelabelled to equilibrium with ... -
The subcellular sites of sphingomyelin synthesis in BHK cells
(Article)The subcellular distributions of the enzymes which synthesise sphingomyelin (SM) and glucosylceramide (GluCer) from ceramide have been assessed in BHK cells. On a sucrose density gradient GluCer synthase (a marker of the ... -
Utilisation of phosphatidylcholine and production of diradylglycerol in the synthesis of sphingomyelin
(Article)After the degradation of cell-surface sphingomyelin (SM) by exogenous sphingomyelinase (SMase), the resynthesis of SM by baby-hamster kidney (BHK) and human leukaemia-60 (HL-60) cells was examined in relation to utilization ...