Receptors and immune sensors: the complex entry path of human
... consequences of its activation by HCMV. This virus is known to induce cell functions associated with progression through the cell cycle and to co-opt several pathways in an ostensible need to optimize the environment for viral replication events. Wang et al. reported that EGFR was cleared from the c ...
... consequences of its activation by HCMV. This virus is known to induce cell functions associated with progression through the cell cycle and to co-opt several pathways in an ostensible need to optimize the environment for viral replication events. Wang et al. reported that EGFR was cleared from the c ...
groupfeb08 - University of Pennsylvania
... Binding of carriers increases about 4 fold upon infusion of heparinase. Glycocalyx may shield beads from binding to ICAMs ...
... Binding of carriers increases about 4 fold upon infusion of heparinase. Glycocalyx may shield beads from binding to ICAMs ...
From spores to antibiotics via the cell cycle
... spoIIIE, turned out to encode proteins with crucial roles in cell cycle control and chromosome segregation that are conserved in almost all bacteria, not just spore formers, so we had uncovered important leads into this fundamental area of biology. Our first major contribution emerged as soon as we ...
... spoIIIE, turned out to encode proteins with crucial roles in cell cycle control and chromosome segregation that are conserved in almost all bacteria, not just spore formers, so we had uncovered important leads into this fundamental area of biology. Our first major contribution emerged as soon as we ...
Slide 1
... Apoptosis also occurs in the mature organism in cells that are infected, damaged, or at the end of their functional lives ...
... Apoptosis also occurs in the mature organism in cells that are infected, damaged, or at the end of their functional lives ...
Hitching a ride on vesicles: Cauliflower mosaic virus movement
... Hitching a ride on vesicles: Cauliflower mosaic virus movement protein trafficking in the endomembrane system ...
... Hitching a ride on vesicles: Cauliflower mosaic virus movement protein trafficking in the endomembrane system ...
F-Actin-Dependent Endocytosis of Cell Wall
... of some, but not all, cells. Here, we have analyzed assembly and distribution of BFA compartments in development- and tissue-specific contexts of growing maize (Zea mays) root apices. Surprisingly, these unique compartments formed only in meristematic cells of the root body. On the other hand, BFA c ...
... of some, but not all, cells. Here, we have analyzed assembly and distribution of BFA compartments in development- and tissue-specific contexts of growing maize (Zea mays) root apices. Surprisingly, these unique compartments formed only in meristematic cells of the root body. On the other hand, BFA c ...
Targets of Oncogenes and Tumor Suppressors: Key for
... Now about one hundred potential oncogenes (cellular and viral) and twenty tumor suppressors have been recognized. Genetic events leading to activation of protooncogenes or inactivation of tumor suppressors have also been described [1-6]. The mechanism of the effect of viral oncogenes includes activa ...
... Now about one hundred potential oncogenes (cellular and viral) and twenty tumor suppressors have been recognized. Genetic events leading to activation of protooncogenes or inactivation of tumor suppressors have also been described [1-6]. The mechanism of the effect of viral oncogenes includes activa ...
Dynamics of PhiX174 protein E-mediated lysis of
... have recently shown by electron microscopy that E-lysed cells show discrete holes in their cell envelopes (Witte et al. 1990a). Here we extend the electron microscopic studies and show a preferential location of the lysis tunnel in potential division zones of the cells. Questions which remain to be ...
... have recently shown by electron microscopy that E-lysed cells show discrete holes in their cell envelopes (Witte et al. 1990a). Here we extend the electron microscopic studies and show a preferential location of the lysis tunnel in potential division zones of the cells. Questions which remain to be ...
SASEC2015 Third Southern African Solar Energy Conference 11 – 13 May 2015
... absolute value of current and thus reflect the curve in the first quadrant [5]. In the I-V curve the power output of the cell is at a maximum when the product of current and voltage is at a maximum. The IMAX and VMAX are the current and voltage points that correspond to the maximum power point, PMAX ...
... absolute value of current and thus reflect the curve in the first quadrant [5]. In the I-V curve the power output of the cell is at a maximum when the product of current and voltage is at a maximum. The IMAX and VMAX are the current and voltage points that correspond to the maximum power point, PMAX ...
9700/04 - StudyGuide.PK
... (a) Describe the importance of ATP in cells, giving two examples of processes in which it is used. ...
... (a) Describe the importance of ATP in cells, giving two examples of processes in which it is used. ...
Surface probe measurements of the elasticity of sectioned tissue
... of PLL-fluorescein within the (PLL/HA) films (18). To covalently crosslink carboxylate and primary amine groups within the film, 400 mM 1-ethyl-3-(3-dimethylamino-propyl) carbodiimide (EDC) and 100 mM Nhydrosulfo-succinimide (Sulfo-NHS) were mixed (v/v) in 0.15 M NaCl solution (pH 5) (20). The (PLL/ ...
... of PLL-fluorescein within the (PLL/HA) films (18). To covalently crosslink carboxylate and primary amine groups within the film, 400 mM 1-ethyl-3-(3-dimethylamino-propyl) carbodiimide (EDC) and 100 mM Nhydrosulfo-succinimide (Sulfo-NHS) were mixed (v/v) in 0.15 M NaCl solution (pH 5) (20). The (PLL/ ...
Probing cytoplasmic viscosity in the confined geometry of
... but this approach requires being able to image and track single fluorescently labeled targets in three dimensions, over the time scales relevant to the objects’ motion [25]. FCS is an attractive alternative [17, 26], which does not use information at the single-particle level, however, it does requi ...
... but this approach requires being able to image and track single fluorescently labeled targets in three dimensions, over the time scales relevant to the objects’ motion [25]. FCS is an attractive alternative [17, 26], which does not use information at the single-particle level, however, it does requi ...
The Putative Arabidopsis Arp2/3 Complex
... The evolutionarily conserved Arp2/3 complex has been shown to activate actin nucleation and branching in several eukaryotes, but its biological functions are not well understood in multicellular organisms. The model plant Arabidopsis provides many advantages for genetic dissection of the function of ...
... The evolutionarily conserved Arp2/3 complex has been shown to activate actin nucleation and branching in several eukaryotes, but its biological functions are not well understood in multicellular organisms. The model plant Arabidopsis provides many advantages for genetic dissection of the function of ...
Relative Requirements for Magnesium of Protein and Chlorophyll
... Kinetics of Growth and Formation of Chi and protein. When photoheterotrophic Euglena are grown with different amounts of Mg initially present in the medium, both the rate of growth and total yield, as measured by apparent optical density, are affected (Fig. IA). Provided that exponentially growing c ...
... Kinetics of Growth and Formation of Chi and protein. When photoheterotrophic Euglena are grown with different amounts of Mg initially present in the medium, both the rate of growth and total yield, as measured by apparent optical density, are affected (Fig. IA). Provided that exponentially growing c ...
A-new-precipitation-technique-provides-evidence-for-the
... silicone seal ensured a flow only through open xylem vessels of the root. The other end of the root segment, which had already been connected to the glass capillary, remained open as an outlet. The syringe was placed 0.7 m above the root (gravitational force of 0.007 MPa) and xylem vessels perfused ...
... silicone seal ensured a flow only through open xylem vessels of the root. The other end of the root segment, which had already been connected to the glass capillary, remained open as an outlet. The syringe was placed 0.7 m above the root (gravitational force of 0.007 MPa) and xylem vessels perfused ...
Chapter 5
... embedded in the plasma membrane bilayer with actin filaments in the cell’s cytoskeleton. Membranes use networks of other proteins to control the lateral movements of some key proteins within the bilayer, anchoring them to specific sites. 4. Cell-surface markers. Membrane sections are assembled in t ...
... embedded in the plasma membrane bilayer with actin filaments in the cell’s cytoskeleton. Membranes use networks of other proteins to control the lateral movements of some key proteins within the bilayer, anchoring them to specific sites. 4. Cell-surface markers. Membrane sections are assembled in t ...
Boundary formation in the hindbrain
... respectively, but are themselves incapable of transducing signals back into their own cell (resulting in uni-directional signaling). Soluble, monomeric forms of ephrin-B ligands block bi-directional signaling because they bind, but do not cluster and activate, Eph receptors [d], and they competitive ...
... respectively, but are themselves incapable of transducing signals back into their own cell (resulting in uni-directional signaling). Soluble, monomeric forms of ephrin-B ligands block bi-directional signaling because they bind, but do not cluster and activate, Eph receptors [d], and they competitive ...
Diffusion and Osmosis Investigations
... The simplest form of movement is diffusion, in which solutes move from an area of high concentration to an area of low concentration; diffusion is directly related to molecular kinetic energy. Diffusion does not require energy input by cells. The movement of a solute from an area of low concentratio ...
... The simplest form of movement is diffusion, in which solutes move from an area of high concentration to an area of low concentration; diffusion is directly related to molecular kinetic energy. Diffusion does not require energy input by cells. The movement of a solute from an area of low concentratio ...
PDF
... and de novo polarization of central cells; indeed, existing models favor this strategy [see figure 7E in Saotome et al. (Saotome et al., 2004) and figure 1A in Kim et al. (Kim et al., 2007)]. These models are supported by ultrastructural studies that link the initiation of epithelial remodeling to t ...
... and de novo polarization of central cells; indeed, existing models favor this strategy [see figure 7E in Saotome et al. (Saotome et al., 2004) and figure 1A in Kim et al. (Kim et al., 2007)]. These models are supported by ultrastructural studies that link the initiation of epithelial remodeling to t ...
Presynaptic mechanisms: neurotransmitter release, synaptic vesicle
... Clostridial neurotoxins (e.g. tetanus toxin) inactive NT release – they act as specific proteases that cleave individual SNARE proteins at the synapse. Artificial lipid vesicles containing appropriate SNARE proteins can fuse in vitro. ...
... Clostridial neurotoxins (e.g. tetanus toxin) inactive NT release – they act as specific proteases that cleave individual SNARE proteins at the synapse. Artificial lipid vesicles containing appropriate SNARE proteins can fuse in vitro. ...
Cell Wall Amine Oxidases: New Players in Root Xylem
... the production of 3-aminopropanal and H2O2 (Figure 1) [19,44–47]. Furthermore, different from other TC- and BC-PAOs so far characterized, AtPAO5, which catalyzes the back-conversion of N1-acetyl-Spm, T-Spm and Spm to Spd, has been shown to have a 180-fold higher activity as a dehydrogenase than as a ...
... the production of 3-aminopropanal and H2O2 (Figure 1) [19,44–47]. Furthermore, different from other TC- and BC-PAOs so far characterized, AtPAO5, which catalyzes the back-conversion of N1-acetyl-Spm, T-Spm and Spm to Spd, has been shown to have a 180-fold higher activity as a dehydrogenase than as a ...
The AMF-R tubule is a smooth ilimaquinone
... with rough ER cisternae and IQ selectively targets smooth and not rough ER. AMF-R tubules can be distinguished from the intermediate compartment labeled for ERGIC-53 by confocal microscopy and thus constitute a distinct IQsensitive subdomain of the smooth ER. ...
... with rough ER cisternae and IQ selectively targets smooth and not rough ER. AMF-R tubules can be distinguished from the intermediate compartment labeled for ERGIC-53 by confocal microscopy and thus constitute a distinct IQsensitive subdomain of the smooth ER. ...
The Living World
... Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display ...
... Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display ...
Gumbo JR and Cloete TE
... cells leading to photo-inhibition. There were ultra-structural changes that occurred in bacteria treated M. aeruginosa cells. SEM images showed swollen M. aeruginosa cells due to cell membrane damage and increased osmotic pressure. The production of intracellular stress related structures by M. aeru ...
... cells leading to photo-inhibition. There were ultra-structural changes that occurred in bacteria treated M. aeruginosa cells. SEM images showed swollen M. aeruginosa cells due to cell membrane damage and increased osmotic pressure. The production of intracellular stress related structures by M. aeru ...
PhD értekezés tézisei
... technique was used. DSC is not structure examination method, therefore the results of DSC can give only information about the thermodynamic behaviour of the actomyosin complex, thus from the thermograms we can draw the conclusions only carefully, however the DSC is a very good complementary of the E ...
... technique was used. DSC is not structure examination method, therefore the results of DSC can give only information about the thermodynamic behaviour of the actomyosin complex, thus from the thermograms we can draw the conclusions only carefully, however the DSC is a very good complementary of the E ...
Cytokinesis
Cytokinesis (cyto- + kinesis) is the process during cell division in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. It usually initiates during the early stages of mitosis, and sometimes meiosis, splitting a mitotic cell in two, to ensure that chromosome number is maintained from one generation to the next. After cytokinesis two (daughter) cells will be formed that are exact copies of the (parent) original cell. After cytokinesis, each daughter cell is in the interphase portion of the cell cycle. In animal cells, one notable exception to the normal process of cytokinesis is oogenesis (the creation of an ovum in the ovarian follicle of the ovary), where the ovum takes almost all the cytoplasm and organelles, leaving very little for the resulting polar bodies, which then die. Another form of mitosis without cytokinesis occurs in the liver, yielding multinucleate cells. In plant cells, a dividing structure known as the cell plate forms within the centre of the cytoplasm and a new cell wall forms between the two daughter cells.Cytokinesis is distinguished from the prokaryotic process of binary fission.