Prentice Hall Biology
... The cell cycle is regulated by a specific protein. The amount of this protein in the cell rises and falls in time with the cell cycle. Scientists called this protein cyclin because it seemed to regulate the cell cycle. Cyclins regulate the timing of the cell cycle in eukaryotic cells. ...
... The cell cycle is regulated by a specific protein. The amount of this protein in the cell rises and falls in time with the cell cycle. Scientists called this protein cyclin because it seemed to regulate the cell cycle. Cyclins regulate the timing of the cell cycle in eukaryotic cells. ...
Plant Cell Growth and Elongation
... dimensions) or by elongation (expansion constrained to one dimension). Variety in cell shape may result if either of these two processes occur only at specific regions of the cell surface. A few plant cells, such as root hairs and pollen tubes, grow by tip growth, in which the mechanisms of wall loos ...
... dimensions) or by elongation (expansion constrained to one dimension). Variety in cell shape may result if either of these two processes occur only at specific regions of the cell surface. A few plant cells, such as root hairs and pollen tubes, grow by tip growth, in which the mechanisms of wall loos ...
- ORCA - Cardiff University
... by decades of research on nerve growth factor (NGF) in the peripheral nervous system (PNS). Recent discoveries now help to understand why only some developing neurons selectively depend on NGF. They also indicate that the survival of most neurons in the central nervous system (CNS) is not simply reg ...
... by decades of research on nerve growth factor (NGF) in the peripheral nervous system (PNS). Recent discoveries now help to understand why only some developing neurons selectively depend on NGF. They also indicate that the survival of most neurons in the central nervous system (CNS) is not simply reg ...
Exosome-Depleted FBS Using Beckman Coulter Centrifugation:
... Chad Schwartz, Ph. D. Beckman Coulter Life Sciences, Indianapolis, IN 46268 Exosomes are small microvesicles, derived from the late endosome, most often described in the literature to be less than 120 nm, released by all cell types, and proven to be involved in cancer metastasis1-3. Exosome characte ...
... Chad Schwartz, Ph. D. Beckman Coulter Life Sciences, Indianapolis, IN 46268 Exosomes are small microvesicles, derived from the late endosome, most often described in the literature to be less than 120 nm, released by all cell types, and proven to be involved in cancer metastasis1-3. Exosome characte ...
Truncated products of the vestigial proliferation gene
... The Vg product plays a key role in cell proliferation of the wing disc integrating developmental cues by its two enhancers, the `boundary' and the `quadrant' enhancers. Ectopic expression of vg in all imaginal discs leads to ectopic proliferation of wing tissue.8 All vg mutants characterized so far ...
... The Vg product plays a key role in cell proliferation of the wing disc integrating developmental cues by its two enhancers, the `boundary' and the `quadrant' enhancers. Ectopic expression of vg in all imaginal discs leads to ectopic proliferation of wing tissue.8 All vg mutants characterized so far ...
AMBER PARTICLES AS LIVING PLANT CELL MARKERS IN FLOW
... The tested plant cells reacted quite similarly to the amber components. The presence of amber components (alcohol soluble amber fraction and sodium succinate) in cultivation media mostly had no influence on cellular fluorescence. This indicates that the increase of cell fluorescence is not directly ...
... The tested plant cells reacted quite similarly to the amber components. The presence of amber components (alcohol soluble amber fraction and sodium succinate) in cultivation media mostly had no influence on cellular fluorescence. This indicates that the increase of cell fluorescence is not directly ...
Regulation of the endothelial cell cycle by the ubiquitin
... from E2 to the target protein. Substrates can be modified with a single Ub or with Ub chains, but only poly-ubiquitination addresses proteins for degradation by the 26S-proteasome. In fact, monoubiquitination rather modulates growth factor endocytosis, PCNA activity during DNA-repair, and is involve ...
... from E2 to the target protein. Substrates can be modified with a single Ub or with Ub chains, but only poly-ubiquitination addresses proteins for degradation by the 26S-proteasome. In fact, monoubiquitination rather modulates growth factor endocytosis, PCNA activity during DNA-repair, and is involve ...
Myc Requires Distinct E2F Activities to Induce S Phase
... since E2F4 is not normally induced by Myc expression. As shown in Figure 2, the E2F4⫺/⫺ cells responded equally well to Myc expression as did wild-type cells. Western blot assays demonstrated equivalent production of Myc protein from the recombinant adenovirus in each of the cell types (data not sho ...
... since E2F4 is not normally induced by Myc expression. As shown in Figure 2, the E2F4⫺/⫺ cells responded equally well to Myc expression as did wild-type cells. Western blot assays demonstrated equivalent production of Myc protein from the recombinant adenovirus in each of the cell types (data not sho ...
Mechanisms and cellular roles of local protein synthesis in mammalian cells
... processes can be found in similar formations after microinjection, and general RNA staining dyes also show punctate staining [42,43]. Based on all of these observations, RNPs have been proposed to transport within entities that have been called RNA granules [40]. The heterogeneous nature of these RN ...
... processes can be found in similar formations after microinjection, and general RNA staining dyes also show punctate staining [42,43]. Based on all of these observations, RNPs have been proposed to transport within entities that have been called RNA granules [40]. The heterogeneous nature of these RN ...
Cell growth and differentiation in Arabidopsis
... trafficking during rapid cell growth. A role for actin in the movement of endosomal compartments in the root tip was found recently (Voigt et al., 2005). The root tip contains an enrichment of endosomal vesicles, and it was observed that the motility of these vesicles was dependent upon an intact ac ...
... trafficking during rapid cell growth. A role for actin in the movement of endosomal compartments in the root tip was found recently (Voigt et al., 2005). The root tip contains an enrichment of endosomal vesicles, and it was observed that the motility of these vesicles was dependent upon an intact ac ...
Mouse embryonic stem cells can differentiate via multiple
... stereotyped sets of downstream cell types, and that these downstream cell types fail to form if an intermediate that is upstream in their lineage is ablated1,2. Furthermore, embryos in general do not produce a mature cell type through multiple differentiation paths. ...
... stereotyped sets of downstream cell types, and that these downstream cell types fail to form if an intermediate that is upstream in their lineage is ablated1,2. Furthermore, embryos in general do not produce a mature cell type through multiple differentiation paths. ...
Full Text - Plant and Cell Physiology
... histone H3 tail at specific residues was checked by immunoblotting using specific antibodies. As shown in our previous study (Kurihara et al. 2011), GST–AtHaspin phosphorylated histone at Thr3 and Thr11, while GST–AtHaspin-KD showed no kinase activity. 5-ITu inhibited H3T3ph in a concentrationdepend ...
... histone H3 tail at specific residues was checked by immunoblotting using specific antibodies. As shown in our previous study (Kurihara et al. 2011), GST–AtHaspin phosphorylated histone at Thr3 and Thr11, while GST–AtHaspin-KD showed no kinase activity. 5-ITu inhibited H3T3ph in a concentrationdepend ...
STRUCTURE-FUNCTION RELATIONSHIPS IN
... is prominent . Although such droplets may be of moderate size, they are generally small and occur in groups . Groups of small droplets are most frequently located adjacent to larger droplets or to the large, central droplet . Only amorphous ground substance separates the members of these groups . Ab ...
... is prominent . Although such droplets may be of moderate size, they are generally small and occur in groups . Groups of small droplets are most frequently located adjacent to larger droplets or to the large, central droplet . Only amorphous ground substance separates the members of these groups . Ab ...
Phosphorylation of Beclin 1 by DAP
... critical site is in fact a target of tight regulation by phosphorylation, causing a severe clash in the interaction with Bcl-XL. We next examined whether phosphorylation on T119 also affects the interaction of Beclin 1 with Bcl-2. We first compared in silico the amino acids in Bcl-XL that form the b ...
... critical site is in fact a target of tight regulation by phosphorylation, causing a severe clash in the interaction with Bcl-XL. We next examined whether phosphorylation on T119 also affects the interaction of Beclin 1 with Bcl-2. We first compared in silico the amino acids in Bcl-XL that form the b ...
Tracheary Element Differentiation
... to identify genes that may be involved in SCW formation in the xylem (see below) (15, 28). Other investigators have applied weight and auxin to increase secondary growth in the stem and compared tissues undergoing primary growth with those undergoing secondary growth as a means of identifying genes ...
... to identify genes that may be involved in SCW formation in the xylem (see below) (15, 28). Other investigators have applied weight and auxin to increase secondary growth in the stem and compared tissues undergoing primary growth with those undergoing secondary growth as a means of identifying genes ...
... the neural and immunological synapses is in the basic “wiring” of the systems. The central nervous system (CNS) is to a great extent hardwired and retains precise connectivity patterns throughout adult life, with neurons projecting long axonal processes that form synapses on complex dendritic trees ...
poster/abstract PDF
... PSCA has been shown to rescue choroid neurons from apoptosis by selectively blocking α7 nAChRs from being activated by nicotine. Studies have shown that α-bungarotoxin-like molecules can alter calcium permeability in nAChRs and receptor kinetics in nAChRs. This suggests a neuromodulatory role for PS ...
... PSCA has been shown to rescue choroid neurons from apoptosis by selectively blocking α7 nAChRs from being activated by nicotine. Studies have shown that α-bungarotoxin-like molecules can alter calcium permeability in nAChRs and receptor kinetics in nAChRs. This suggests a neuromodulatory role for PS ...
THE PLAY ABOUT A PLANT CELL, AN ANIMAL CELL, AND A
... Oxy: Umph….What was that? Cell Membrane: Those were the mitochondria. Oxy: The way they’re moving around here, they must have lots of energy. Mitochondria: (speaking very quickly and loudly with lots of excitement while bouncing and moving around – THE ENTIRE TIME) Mitochondria #1: Yes, you’re right ...
... Oxy: Umph….What was that? Cell Membrane: Those were the mitochondria. Oxy: The way they’re moving around here, they must have lots of energy. Mitochondria: (speaking very quickly and loudly with lots of excitement while bouncing and moving around – THE ENTIRE TIME) Mitochondria #1: Yes, you’re right ...
word - My eCoach
... repeating sequenceof cellular growth and division during the life of an organism. Mitosis is one of the phasesin the cell cycle. Mitosis is the process by which the material in a cell's nucleus is divided during cell reproduction. In this lab, you will build a model that will help you understand the ...
... repeating sequenceof cellular growth and division during the life of an organism. Mitosis is one of the phasesin the cell cycle. Mitosis is the process by which the material in a cell's nucleus is divided during cell reproduction. In this lab, you will build a model that will help you understand the ...
Chapter 7: Life is Cellular
... not require use of the cell’s energy. Active transport does require the cell’s energy. Active transport is when cells move materials from one side of a membrane to the other side against the concentration difference. Types of active transport include endocytosis, phagocytosis, pinocytosis, and exocy ...
... not require use of the cell’s energy. Active transport does require the cell’s energy. Active transport is when cells move materials from one side of a membrane to the other side against the concentration difference. Types of active transport include endocytosis, phagocytosis, pinocytosis, and exocy ...
Termination of autophagy and reformation of lysosomes regulated
... protein TOR (target of rapamycin), a nutrient-responsive kinase, is inhibited, and this induces autophagy. In autophagy, doublemembrane autophagosomes envelop and sequester intracellular components and then fuse with lysosomes to form autolysosomes, which degrade their contents to regenerate nutrien ...
... protein TOR (target of rapamycin), a nutrient-responsive kinase, is inhibited, and this induces autophagy. In autophagy, doublemembrane autophagosomes envelop and sequester intracellular components and then fuse with lysosomes to form autolysosomes, which degrade their contents to regenerate nutrien ...
Advantages over Mechanical Dissociation of Cells
... Traditionally, the removal of cells cultured on tissue culture polystyrene (TCPS) requires harsh methods such as enzymatic digestion or mechanical manipulation, which affect the morphological appearance of the cells being harvested. For instance, cell removal by enzymatic digestion tends to yield di ...
... Traditionally, the removal of cells cultured on tissue culture polystyrene (TCPS) requires harsh methods such as enzymatic digestion or mechanical manipulation, which affect the morphological appearance of the cells being harvested. For instance, cell removal by enzymatic digestion tends to yield di ...
CAVATAS STUDY 5 years restenosis rate: 30% HR 0.43 (stent
... After vascular reconstruction, luminal narrowing is in part caused by intimal thickening, the consequence of endothelial injury and inflammation, smooth muscle cell hyperplasia, and extracellular matrix accumulation. It may be possible to induce these lesions to shrink. ...
... After vascular reconstruction, luminal narrowing is in part caused by intimal thickening, the consequence of endothelial injury and inflammation, smooth muscle cell hyperplasia, and extracellular matrix accumulation. It may be possible to induce these lesions to shrink. ...
Print this article
... Secondary metabolites produced by plants are low molecular weight compounds, which constitute the organism’s toolbox that enable adaptive responses to the environmental cues (Kennedy & Wightman, 2011). Plants coexist alongside a specific biota and have evolved with a range of secondary metabolites t ...
... Secondary metabolites produced by plants are low molecular weight compounds, which constitute the organism’s toolbox that enable adaptive responses to the environmental cues (Kennedy & Wightman, 2011). Plants coexist alongside a specific biota and have evolved with a range of secondary metabolites t ...
Evolution of Cell Division
... In another group of cells, generally mammalian cells [9, 18], growth and division are regulated through two independent mechanisms. In fact, activation through two unconnected, parallel signalling pathways makes growth and division correlated but not coupled to each other [18]. In these cells, maint ...
... In another group of cells, generally mammalian cells [9, 18], growth and division are regulated through two independent mechanisms. In fact, activation through two unconnected, parallel signalling pathways makes growth and division correlated but not coupled to each other [18]. In these cells, maint ...
Programmed cell death
Programmed cell-death (or PCD) is death of a cell in any form, mediated by an intracellular program. PCD is carried out in a regulated process, which usually confers advantage during an organism's life-cycle. For example, the differentiation of fingers and toes in a developing human embryo occurs because cells between the fingers apoptose; the result is that the digits are separate. PCD serves fundamental functions during both plant and metazoa (multicellular animals) tissue development.Apoptosis and autophagy are both forms of programmed cell death, but necrosis is a non-physiological process that occurs as a result of infection or injury.Necrosis is the death of a cell caused by external factors such as trauma or infection and occurs in several different forms. Recently a form of programmed necrosis, called necroptosis, has been recognized as an alternate form of programmed cell death. It is hypothesized that necroptosis can serve as a cell-death backup to apoptosis when the apoptosis signaling is blocked by endogenous or exogenous factors such as viruses or mutations.