Electrochemical model for proton exchange membrane fuel cell
... 107.6×10−8 A/cm2 at 298 K. From these results, it can be concluded that Pt loading is not alone in affecting the value of i0 . Typically, the value of lies in a very narrow range of about 0.1 to 0.5 [17]. The exchange current density constant varies over a wide range, and thus has a dramatic effect ...
... 107.6×10−8 A/cm2 at 298 K. From these results, it can be concluded that Pt loading is not alone in affecting the value of i0 . Typically, the value of lies in a very narrow range of about 0.1 to 0.5 [17]. The exchange current density constant varies over a wide range, and thus has a dramatic effect ...
Molecular Mechanisms of Neurodegeneration Course Directors: Einar M. Sigurdsson, Ph.D. Jorge Ghiso, Ph.D.
... maintaining neuromuscular synapses and how perturbations in their function, caused by mutations or autoantibodies, causes defects in the synaptic transmission and neuromuscular disease. Dysregulated Translational Control in Neurodegenerative Disease Eric Klann, Ph.D. A requirement for de novo protei ...
... maintaining neuromuscular synapses and how perturbations in their function, caused by mutations or autoantibodies, causes defects in the synaptic transmission and neuromuscular disease. Dysregulated Translational Control in Neurodegenerative Disease Eric Klann, Ph.D. A requirement for de novo protei ...
An overview of E. coli expression systems
... E.g. CGT, CGC, CGG, AGG, AGA, CGA code for arginine, but the last 3 (AGG, AGA, CGA) are rarely used in E. coli and it has low amounts of respective tRNAs. ...
... E.g. CGT, CGC, CGG, AGG, AGA, CGA code for arginine, but the last 3 (AGG, AGA, CGA) are rarely used in E. coli and it has low amounts of respective tRNAs. ...
Peroxisome degradation requires catalytically active sterol
... many GRAM-domain proteins harbour additional lipidbinding motifs, e.g. FYVE or pleckstrin homology (PH) domains, they are thought to be associated with intracellular membranes. The physiological and biochemical functions of GRAM domains, however, have not been determined at either the cellular or mo ...
... many GRAM-domain proteins harbour additional lipidbinding motifs, e.g. FYVE or pleckstrin homology (PH) domains, they are thought to be associated with intracellular membranes. The physiological and biochemical functions of GRAM domains, however, have not been determined at either the cellular or mo ...
Ilyas R et al. High Glucose Disrupts Oligosaccharide Recognition
... components of the innate immune system have evolved to recognize microbial polysaccharides and oligosaccharides rich in mannose and fucose. Carbohydrate-binding proteins of the C-type lectin family play major roles in the execution of immunological responses towards these glycans and their associate ...
... components of the innate immune system have evolved to recognize microbial polysaccharides and oligosaccharides rich in mannose and fucose. Carbohydrate-binding proteins of the C-type lectin family play major roles in the execution of immunological responses towards these glycans and their associate ...
10–2 Cell Division
... Materials move through cells by diffusion. Oxygen and food move into cells, while waste products move out of cells. How does the size of a cell affect how efficiently materials get to all parts of a cell? Work with a partner to complete this activity. 1. On a sheet of paper, make a drawing of a cell ...
... Materials move through cells by diffusion. Oxygen and food move into cells, while waste products move out of cells. How does the size of a cell affect how efficiently materials get to all parts of a cell? Work with a partner to complete this activity. 1. On a sheet of paper, make a drawing of a cell ...
Midbodies and phragmoplasts: analogous structures
... anaphase. It can have roles in spindle elongation and cytokinesis in various organisms. The microtubules are most likely remnants of the mitotic spindle that were not attached to chromosomes. Midbody: a compact, dense matrix of proteins embedded in the region of microtubule overlap that is formed fr ...
... anaphase. It can have roles in spindle elongation and cytokinesis in various organisms. The microtubules are most likely remnants of the mitotic spindle that were not attached to chromosomes. Midbody: a compact, dense matrix of proteins embedded in the region of microtubule overlap that is formed fr ...
Molecular Weight Determination by SDS-PAGE - Bio-Rad
... structure on migration. In addition, a strong ionic detergent such as SDS is a required component of the sample buffer. SDS provides two functions: It denatures secondary, tertiary, and quaternary structures by binding to hydrophobic protein regions, and its binding confers a net negative charge on ...
... structure on migration. In addition, a strong ionic detergent such as SDS is a required component of the sample buffer. SDS provides two functions: It denatures secondary, tertiary, and quaternary structures by binding to hydrophobic protein regions, and its binding confers a net negative charge on ...
Differential localization of LTA synthesis proteins and their
... self-interaction was detected and DltD was found to interact with the core LTA synthesis proteins (Fig. 1A and B). LTA depletion in S. aureus results in aberrant positioning of the septa, cell enlargement and eventual cell lysis, indicating a role for this polymer in both cell growth and cell divisi ...
... self-interaction was detected and DltD was found to interact with the core LTA synthesis proteins (Fig. 1A and B). LTA depletion in S. aureus results in aberrant positioning of the septa, cell enlargement and eventual cell lysis, indicating a role for this polymer in both cell growth and cell divisi ...
PDF
... were compared with WT levels. From these experiments, we observed that the 2-OST protein levels in the 2-OST morphants were approximately half the levels observed in uninjected controls or in embryos injected with control morpholino. To determine whether morpholino knockdown of 2-OST results in a re ...
... were compared with WT levels. From these experiments, we observed that the 2-OST protein levels in the 2-OST morphants were approximately half the levels observed in uninjected controls or in embryos injected with control morpholino. To determine whether morpholino knockdown of 2-OST results in a re ...
Food Chemistry
... foods is partly dependent on chemical reactions occurring during processing and storage. If proteins are overheated, the amino acid structure changes. As a result, the protein is not easily digested or absorbed. Savoie, Charbonneau, and Parent (1989) reported that overheating of non-fat dried milk, ...
... foods is partly dependent on chemical reactions occurring during processing and storage. If proteins are overheated, the amino acid structure changes. As a result, the protein is not easily digested or absorbed. Savoie, Charbonneau, and Parent (1989) reported that overheating of non-fat dried milk, ...
Deciphering unusual uncultured magnetotactic multicellular
... M. multicellularis has been obtained using cultureindependent techniques (Keim et al., 2007), its physiology and genetic composition is largely unknown, mostly because of the inability to grow this microorganism in axenic culture. Phylogenetic analyses of MMPs, based on 16S rRNA genes sequences, hav ...
... M. multicellularis has been obtained using cultureindependent techniques (Keim et al., 2007), its physiology and genetic composition is largely unknown, mostly because of the inability to grow this microorganism in axenic culture. Phylogenetic analyses of MMPs, based on 16S rRNA genes sequences, hav ...
Non-genetic heterogeneity of cells in development: more than just
... is most aptly accounted for by what is termed ‘pitchfork bifurcation’. This is a general phenomenon that arises in some gene-regulatory circuits with feedback loops and forces cells to make a choice between two alternative stable states as their current state is destabilized (Huang et al., 2007). Th ...
... is most aptly accounted for by what is termed ‘pitchfork bifurcation’. This is a general phenomenon that arises in some gene-regulatory circuits with feedback loops and forces cells to make a choice between two alternative stable states as their current state is destabilized (Huang et al., 2007). Th ...
Microbial Immune Suppression Mediated by Direct Engagement of Inhibitory Fc Receptor
... genes). Fc␥RI, Fc␥RIIA, and Fc␥RIII are activating receptors associated with ITAM (15), whereas Fc␥RIIB is an inhibitory receptor that has an ITIM in its cytoplasmic tail (16). Many immunosuppressive signals described for Fc␥RIIB such as inhibition of phagocytosis of IgG-coated particles (17), calci ...
... genes). Fc␥RI, Fc␥RIIA, and Fc␥RIII are activating receptors associated with ITAM (15), whereas Fc␥RIIB is an inhibitory receptor that has an ITIM in its cytoplasmic tail (16). Many immunosuppressive signals described for Fc␥RIIB such as inhibition of phagocytosis of IgG-coated particles (17), calci ...
Microscopy of myelination - Formatex Research Center
... Experiments using knockout mice have shown the actin cytoskeleton to play a crucial role in process outgrowth. A single oligodendrocyte may myelinate as many as 40 axon segments [26]. Oligodendrocytes are believed to generate an excess of processes at first, with only those in contact with an axon b ...
... Experiments using knockout mice have shown the actin cytoskeleton to play a crucial role in process outgrowth. A single oligodendrocyte may myelinate as many as 40 axon segments [26]. Oligodendrocytes are believed to generate an excess of processes at first, with only those in contact with an axon b ...
Microbiology
... Some bacteria of the genus Apspirillzlm have plantgrowth-promoting potential (Dobereiner & Pedrosa, 1987; Okon, 1985). Important steps to establish this rhizocoenosis are the adsorption of bacteria to the root surface and the colonization of the root. It is known that different protein or carbohydra ...
... Some bacteria of the genus Apspirillzlm have plantgrowth-promoting potential (Dobereiner & Pedrosa, 1987; Okon, 1985). Important steps to establish this rhizocoenosis are the adsorption of bacteria to the root surface and the colonization of the root. It is known that different protein or carbohydra ...
Activation of Heat-Shock Factor by Stretch-Activated
... inserted into the left ventricle (LV) and through the apex for thebesian drainage. We placed a fluid-filled latex balloon into the LV via the left atrium and connected it to a transducer to monitor pressures. Initial LV end-diastolic pressure (LVEDP) was adjusted to 10 mm Hg by adjustment of balloon ...
... inserted into the left ventricle (LV) and through the apex for thebesian drainage. We placed a fluid-filled latex balloon into the LV via the left atrium and connected it to a transducer to monitor pressures. Initial LV end-diastolic pressure (LVEDP) was adjusted to 10 mm Hg by adjustment of balloon ...
Nuclear mitotic apparatus protein (NuMA): spindle association
... To find out whether any particular isoform shows a subcellular localization identical to that reported for the original NuMA, we have now expressed these three different isoforms of NuMA in cultured cells. Expression of the largest isoform (NuMA-l) showed a cell-cycle-dependent distribution indistin ...
... To find out whether any particular isoform shows a subcellular localization identical to that reported for the original NuMA, we have now expressed these three different isoforms of NuMA in cultured cells. Expression of the largest isoform (NuMA-l) showed a cell-cycle-dependent distribution indistin ...
a few sensory concepts, 100416
... Stimulus = an event that evokes a specific reaction in an organ or tissue. Receptive field = a region of space in which the presence of a stimulus will alter the firing of the sensory receptor or neuron. Transduce = convert a physical quantity into another physical quantity such as mechanical vibrat ...
... Stimulus = an event that evokes a specific reaction in an organ or tissue. Receptive field = a region of space in which the presence of a stimulus will alter the firing of the sensory receptor or neuron. Transduce = convert a physical quantity into another physical quantity such as mechanical vibrat ...
The Impact of Non-Enzymatic Reactions and Enzyme Promiscuity on
... or toxic chemicals, or biotic interactions with other species. These stress situations can manifest as an acute pulse, or be sustained over time, and can affect cellular functioning and ultimately impair cell growth, replicative capabilities, and/or promote aging. Stress-induced damage to biological ...
... or toxic chemicals, or biotic interactions with other species. These stress situations can manifest as an acute pulse, or be sustained over time, and can affect cellular functioning and ultimately impair cell growth, replicative capabilities, and/or promote aging. Stress-induced damage to biological ...
Signal transduction
Signal transduction occurs when an extracellular signaling molecule activates a specific receptor located on the cell surface or inside the cell. In turn, this receptor triggers a biochemical chain of events inside the cell, creating a response. Depending on the cell, the response alters the cell's metabolism, shape, gene expression, or ability to divide. The signal can be amplified at any step. Thus, one signaling molecule can cause many responses.