26 Result(s)
-
Chapter and Conference Paper
Subunits a, b and c of Panulirus Interruptus Hemocyanin and Evolution of Arthropod Hemocyanins
Hemocyanins are large, non-haem, oxygen-carrying proteins occurring freely dissolved in the hemolymph of molluscs and arthropods.
-
Chapter and Conference Paper
Leukotrienes and Prostaglandins Mutually Govern the Antitumor Potential of Macrophages
Macrophages, due to their phagocytosing and secretory function, are effector cells and because of their interaction with lymphocytes, are also looked upon as surveillance cells of the immune system. Eicosanoid...
-
Chapter and Conference Paper
Complexity and Regulation in the Acetylcholine Storage System of Synaptic Vesicles
Synaptic vesicles isolated from the electric organ of Torpedo exhibit active transport of acetylcholine (AcCh). The transport system is composed of at least three components; namely, an ATPase thought to pump pro...
-
Chapter and Conference Paper
Transbilayer Organization and Mobility of Phospholipids in Normal and Pathologic Erythrocytes
Regarding the marked asymmetric distribution of phospholipids in the erythrocyte membrane, which is characterized by the two choline containing phospholipids, sphingomyelin (SM) and phosphatidyl- choline (PC),...
-
Chapter and Conference Paper
Phospholipid Asymmetry During Erythropoiesis
The membrane of the human erythrocyte is one of the best studied biological membranes. Its composition is known and many important aspects of its structure and function have been elucidated. A detailed overvie...
-
Chapter and Conference Paper
Techniques to Determine Transbilayer Organization and Dynamics of Membrane Phospholipids
Nowadays, there are no more arguments opposing the view that the structural backbone of a biological membrane is provided by a lipid bilayer, the fatty acyl chains of the phospholipids forming the hydrophobic ...
-
Chapter and Conference Paper
The role of monoamine oxidase, iron-melanin interaction, and intracellular calcium in Parkinson’s disease
Recent evidence suggests that iron accumulates in substantia nigra pars compacta of patients with Parkinson’s disease (PD). This finding is compatible with changes in the respiratory chain activity, increase o...
-
Chapter and Conference Paper
IL-4 is a Major Determinant of T Cell Lymphokine-Producing Phenotype
Interleukin-4 present during priming causes naive T cells from T cell receptor transgenic mice to develop into cells capable of producing IL-4 upon secondary challenge. It also suppresses the capacity of such ...
-
Chapter and Conference Paper
The sensitivity for salinity increase in the drought resistant cyanobacterium Crinalium epipsammum SAB 22.89
In the coastal dunes of the Netherlands phototrophic organisms are colonising the sand surface (De Winder et al. 1989a). In previous studies the response of the three representative organisms, the cyanobacteria C...
-
Chapter and Conference Paper
The effects of irradiance, temperature and desiccation on cyanobacterial photosynthesis: A possible explanation for the diurnal changes in surface waterblooms
During surface waterbloom formation a population of buoyant cyanobacteria becomes telescoped to the lake surface in the absence of mixing (Reynolds and Walsby 1975). Bloom formation involves an abrupt change i...
-
Chapter and Conference Paper
Modulation of NMDA Currents in Hippocampal Neurones
Activity of hippocampal neurons is regulated by several types of receptors to neuropeptides, hormones and neurotransmitters.14,49 Glutamate is the most prominent neurotransmitter of the fast excitatory synapses i...
-
Chapter and Conference Paper
Lipid-protein interactions in chloroplast protein Import
Proteins function at distinct sites in a cell, yet they are primarily synthesized in one compartment, the cytosol. (For a concise collection of reviews see (Neupert and Lill, 1992)). This implies that newly sy...
-
Chapter and Conference Paper
Phospholipid Flippases: Neither Exclusively, Nor Only Involved In Maintaining Membrane Phospholipid Asymmetry
Shortly after its discovery in the early seventies, the phenomenon of an asymmetric distribution of phospholipids in the red cell and other plasma membranes raised questions regarding its generation and mainte...
-
Chapter and Conference Paper
Rhizobial Capsular and Lipopolysaccharides: Evidence for their Importance in Rhizobium-Legume Symbiosis
The cell surface of rhizobia is comprised of a number of polysaccharides; extracellular (EPSs), capsular (KPSs), and lipopolysaccharides (LPSs). Each is important in forming an effective nitrogen-fixing symbio...
-
Chapter and Conference Paper
Smart Bacterial Colonies
1 Introduction
2 Microevolution in a Petri-dish
2.1 Bursts of...
-
Chapter and Conference Paper
Laser Ablation In Arabidopsis Roots: A Tool To Study Cell-To-Cell Communication
Developmental processes have been widely studied by manipulations of cells and tissues in intact organisms. These techniques are only in the last decades being complemented by the powerful approach of genetic ...
-
Chapter and Conference Paper
Modeling Branching and Chiral Colonial Patterning of Lubricating Bacteria
In nature, microorganisms must often cope with hostile environmental conditions. To do so they have developed sophisticated cooperative behavior and intricate communication capabilities, such as: direct cell-c...
-
Chapter and Conference Paper
Combinatorial Use of Short Probes for Differential Gene Expression Profiling
Motivation: Gene chips or microarrays have made it possible to perform large-scale gene-expression experiments at the wholegenome level. To reduce the cost and identify genes that are differentially expressed ...
-
Chapter and Conference Paper
Joint Analysis of DNA Copy Numbers and Gene Expression Levels
Genomic instabilities, amplifications, deletions and translocations are often observed in tumor cells. In the process of cancer pathogenesis cells acquire multiple genomic alterations, some of which drive the ...
-
Chapter and Conference Paper
Databases for Comparative Analysis of Human-Mouse Orthologous Alternative Splicing
Comparative analyses of alternative splicing across species can provide significant biological insight not only to evolution of alternative splicing, but also to its regulation and functional significance. For...
