Uptake and presentation of hepatitis C virus–like
... Interestingly, DC-SIGN has been shown to play a role in infection of DCs by Ebola virus13 and dengue virus,14,15 another member of the Flaviviridae family. Furthermore, recent studies using recombinant HCV envelope glycoprotein 2 (E2) and HCV pseudotype particles (HCVpp’s) have provided evidence tha ...
... Interestingly, DC-SIGN has been shown to play a role in infection of DCs by Ebola virus13 and dengue virus,14,15 another member of the Flaviviridae family. Furthermore, recent studies using recombinant HCV envelope glycoprotein 2 (E2) and HCV pseudotype particles (HCVpp’s) have provided evidence tha ...
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... selective feeding that they are grazed to very low dens ~ t i e seven if grazing is weak. As bacterial cell size increases during the cell cycle, size-selective predators are expected to graze more intensively on bacteria shortly before or during cell division (Sherr et al. 1992), i.e. on the fastes ...
... selective feeding that they are grazed to very low dens ~ t i e seven if grazing is weak. As bacterial cell size increases during the cell cycle, size-selective predators are expected to graze more intensively on bacteria shortly before or during cell division (Sherr et al. 1992), i.e. on the fastes ...
UVB induced cell cycle checkpoints in an early stage
... entrance into S phase imposed by DNA damage, the replication of damaged DNA can either result in cell death or an accumulation of genetic changes leading ultimately to cancer (Hartwell and kastan 1994). In mammalian cells, progression through the cell cycle is regulated by the ordered formation, act ...
... entrance into S phase imposed by DNA damage, the replication of damaged DNA can either result in cell death or an accumulation of genetic changes leading ultimately to cancer (Hartwell and kastan 1994). In mammalian cells, progression through the cell cycle is regulated by the ordered formation, act ...
Suppression of Pyk2 Kinase and Cellular Activities by FIP200
... and Pyk2-induced apoptosis in intact cells, which correlated with its binding to Pyk2. Finally, activation of Pyk2 by several biological stimuli correlated with the dissociation of endogenous FIP200–Pyk2 complex, which provided further support for inhibition of Pyk2 by FIP200 in intact cells. Togeth ...
... and Pyk2-induced apoptosis in intact cells, which correlated with its binding to Pyk2. Finally, activation of Pyk2 by several biological stimuli correlated with the dissociation of endogenous FIP200–Pyk2 complex, which provided further support for inhibition of Pyk2 by FIP200 in intact cells. Togeth ...
Architectural remodeling of the tonoplast during fluid
... given their red betacyanin content (Fig. 2C and D). The vacuolederived vesicles not only varied in size and number between cells from different beet hypocotyl preparations, but also between cells from the same hypocotyl. Lack of synchrony is not unusual since not all cells participate equally in the ...
... given their red betacyanin content (Fig. 2C and D). The vacuolederived vesicles not only varied in size and number between cells from different beet hypocotyl preparations, but also between cells from the same hypocotyl. Lack of synchrony is not unusual since not all cells participate equally in the ...
Murine Siva-1 and Siva-2, alternate splice forms of the mouse Siva
... cell Ig synthesis, can also mediate cell death. Using the CD27 cytoplasmic tail as the bait in yeast two hybrid assay, we previously cloned human Siva, a pro-apoptotic molecule. Here we report the characterization of the mouse Siva gene as a 4 kb sequence containing 4 exons and 3 introns. RT ± PCR h ...
... cell Ig synthesis, can also mediate cell death. Using the CD27 cytoplasmic tail as the bait in yeast two hybrid assay, we previously cloned human Siva, a pro-apoptotic molecule. Here we report the characterization of the mouse Siva gene as a 4 kb sequence containing 4 exons and 3 introns. RT ± PCR h ...
FURTHER STUDIES ON THE THETA CELL OF THE MOUSE
... designated it "theta cell" following the terminology of Romeis (16). In light microscope studies (17), theta cells were characterized by an eccentrically located nucleus, a cap-like limb showing marked basophilia at the cell periphery, and an extensive supranuclear region suggestive of the Golgi zon ...
... designated it "theta cell" following the terminology of Romeis (16). In light microscope studies (17), theta cells were characterized by an eccentrically located nucleus, a cap-like limb showing marked basophilia at the cell periphery, and an extensive supranuclear region suggestive of the Golgi zon ...
The dendritic cell side of the immunological synapse
... receive signals themselves from T cells at the immunological synapse. Engagement of CD40L on the T cell with CD40 on the DC provides a pro-survival signal that protects the DC from undergoing apoptosis via the Akt1 pathway (8, 56). Moreover, the accumulation of tyrosine-phosphorylated proteins and o ...
... receive signals themselves from T cells at the immunological synapse. Engagement of CD40L on the T cell with CD40 on the DC provides a pro-survival signal that protects the DC from undergoing apoptosis via the Akt1 pathway (8, 56). Moreover, the accumulation of tyrosine-phosphorylated proteins and o ...
1. (a) cells if more than one box is ticked, award no mark 1 (b) tail 1
... it has no chloroplasts or no chlorophyll (ii) ...
... it has no chloroplasts or no chlorophyll (ii) ...
Refraction effect in an in-plane-switching blue
... To reduce operation voltage and hysteresis, both large Kerr constant BPLC materials [23– 26], and modified IPS structures, such as protrusion electrodes [21], wall-shaped electrodes [27], etched electrodes [28], and corrugated electrodes [29] have been proposed. With these combined effects, the on-s ...
... To reduce operation voltage and hysteresis, both large Kerr constant BPLC materials [23– 26], and modified IPS structures, such as protrusion electrodes [21], wall-shaped electrodes [27], etched electrodes [28], and corrugated electrodes [29] have been proposed. With these combined effects, the on-s ...
The allocation of early blastomeres to the ectoderm and endoderm
... embryos where spatial relationships between veg1 and veg2 are not disrupted, the inherent endoderm-forming ability of veg1 is prevented by suppressive signals from veg2 (Khaner and Wilt, 1991). Thus, the segregation of ectoderm from the prospective archenteron may be regulated by signaling across th ...
... embryos where spatial relationships between veg1 and veg2 are not disrupted, the inherent endoderm-forming ability of veg1 is prevented by suppressive signals from veg2 (Khaner and Wilt, 1991). Thus, the segregation of ectoderm from the prospective archenteron may be regulated by signaling across th ...
Distinct Actions and Cooperative Roles of ROCK
... We have shown that inactivation and reactivation of Rho are necessary for the TPA-induced disassembly and reassembly, respectively, of stress fibers and focal adhesions, and that activation of the Rab small G protein family, at least Rab5, is furthermore necessary for their reassembly (Imamura et al ...
... We have shown that inactivation and reactivation of Rho are necessary for the TPA-induced disassembly and reassembly, respectively, of stress fibers and focal adhesions, and that activation of the Rab small G protein family, at least Rab5, is furthermore necessary for their reassembly (Imamura et al ...
Dynamin as a mover and pincher during cell migration and invasion
... 2000) found Dyn2 to be situated at podosomes of transformed cells and osteoclasts. These matrix-degrading structures at the base of cells are formed from tubular invaginations of the plasma membrane and appear to require both actin and Dyn2, because expression of Dyn2 mutants in these cells disrupts ...
... 2000) found Dyn2 to be situated at podosomes of transformed cells and osteoclasts. These matrix-degrading structures at the base of cells are formed from tubular invaginations of the plasma membrane and appear to require both actin and Dyn2, because expression of Dyn2 mutants in these cells disrupts ...
Database Machine
... Success of SAN caches is built upon predictive analytics They work well, if a small percentage of disk accessed most often - The emphasis is on disk; not data Most database systems - Are way bigger than caches - Need to get the data to the memory to process --> I/O at the disk level is still h ...
... Success of SAN caches is built upon predictive analytics They work well, if a small percentage of disk accessed most often - The emphasis is on disk; not data Most database systems - Are way bigger than caches - Need to get the data to the memory to process --> I/O at the disk level is still h ...
Actin Cytoskeleton in Plants: From Transport Networks to Signaling
... for indirect immunofluorescence microscopy after highpressure freeze-substitution (Ding et al., 1992; Roy et al., 1997), formaldehyde fixation (Baluška et al., 1997a; Blancaflor and Hasenstein, 1997; Vitha et al., 1997; Wasteneys et al., 1997), immunogold transmission EM (Lancelle et al., 1987; Lan ...
... for indirect immunofluorescence microscopy after highpressure freeze-substitution (Ding et al., 1992; Roy et al., 1997), formaldehyde fixation (Baluška et al., 1997a; Blancaflor and Hasenstein, 1997; Vitha et al., 1997; Wasteneys et al., 1997), immunogold transmission EM (Lancelle et al., 1987; Lan ...
Science Jeopardy - Broward County Public Schools
... • ANSWER: Most organisms that have many different types of specialized cells are in this domain. • QUESTION: What are Eukarya? ...
... • ANSWER: Most organisms that have many different types of specialized cells are in this domain. • QUESTION: What are Eukarya? ...
1 Cell wall integrity controls root elongation via ACC Corresponding
... Aminoethoxyvinylglycine (AVG), or with silver ions (as silver thiosulfate) to block ethylene perception. While silver had no significant effect on cell length in control or isoxaben-treated roots, AVG fully restored elongation in the presence of isoxaben (Fig. 2A). Often roots treated with both isox ...
... Aminoethoxyvinylglycine (AVG), or with silver ions (as silver thiosulfate) to block ethylene perception. While silver had no significant effect on cell length in control or isoxaben-treated roots, AVG fully restored elongation in the presence of isoxaben (Fig. 2A). Often roots treated with both isox ...
05 Keim
... Itaipu Lagoon. EDX spectra showed mainly carbon (Fig. 2E), as expected for a lipid or PHA-containing inclusion. We could not distinguish between lipids and PHA in whole mounts viewed by TEM, since both inclusions appeared as round electron-lucent regions. In ultra-thin sections, the unsaturated lipi ...
... Itaipu Lagoon. EDX spectra showed mainly carbon (Fig. 2E), as expected for a lipid or PHA-containing inclusion. We could not distinguish between lipids and PHA in whole mounts viewed by TEM, since both inclusions appeared as round electron-lucent regions. In ultra-thin sections, the unsaturated lipi ...
Early Cell Cycle Entry and Cell Division Murine Neonatal
... RAG2⫺/⫺ hosts (Fig. 2, right column). Together, these results indicate that faster kinetics of proliferation is a universal phenomenon among neonatal T cell populations—it occurs both in vivo and in vitro, it occurs in several strains of mice, and it occurs whether stimulation is through the CD3/TCR ...
... RAG2⫺/⫺ hosts (Fig. 2, right column). Together, these results indicate that faster kinetics of proliferation is a universal phenomenon among neonatal T cell populations—it occurs both in vivo and in vitro, it occurs in several strains of mice, and it occurs whether stimulation is through the CD3/TCR ...
Stem Cell: Past, Present and Future- A Review
... Adult stem cells (ASC). Embryonic Stem Cells: These cells are also known as early stem cells. Embryonic stem cells are derived from embryos at a developmental stage before the time of implantation would normally occur in the uterus. This developmental stage is the blastocyst stage – 32 cell stage, f ...
... Adult stem cells (ASC). Embryonic Stem Cells: These cells are also known as early stem cells. Embryonic stem cells are derived from embryos at a developmental stage before the time of implantation would normally occur in the uterus. This developmental stage is the blastocyst stage – 32 cell stage, f ...
Viruses are not alive but affect living things.
... were made as comfortable as possible on beds outside. Since viruses such as influenza can spread quickly, the camp was isolated from the rest of the community. Plant viruses can stunt plant growth and kill plants. When plant viruses invade crop plants, they can cause much economic damage, decreasing ...
... were made as comfortable as possible on beds outside. Since viruses such as influenza can spread quickly, the camp was isolated from the rest of the community. Plant viruses can stunt plant growth and kill plants. When plant viruses invade crop plants, they can cause much economic damage, decreasing ...
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... similar and showed that many cells were organized into ductal structures containing lumina (Fig. 2). The sites of origin of the outgrowths appeared as an indistinctly outlined clump of cells in whole-mount preparations. Histological sections of these regions showed that some cells were organized aro ...
... similar and showed that many cells were organized into ductal structures containing lumina (Fig. 2). The sites of origin of the outgrowths appeared as an indistinctly outlined clump of cells in whole-mount preparations. Histological sections of these regions showed that some cells were organized aro ...
Mitosis
Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.