Ribosome biogenesis and cell growth: mTOR coordinates
... the activity but also the intracellular localization of TIFIA. Once inactivated by rapamycin treatment, a significant part of TIF-IA translocates from the nucleus into the cytoplasm. mTOR-sensitive sequestration of TIF-IA in the cytoplasm is reminiscent of studies in yeast which have shown that the T ...
... the activity but also the intracellular localization of TIFIA. Once inactivated by rapamycin treatment, a significant part of TIF-IA translocates from the nucleus into the cytoplasm. mTOR-sensitive sequestration of TIF-IA in the cytoplasm is reminiscent of studies in yeast which have shown that the T ...
CENP-E Is a Plus End–Directed Kinetochore Motor Required for
... of chromatin. Bipolarity is achieved by the action of multivalent minus end–directed microtubule motor complexes, including NuMA, cytoplasmic dynein, and dynactin in frogs (Heald et al., 1996, 1997; Merdes et al., 1996) and the kinesin-like motor Ncd in Drosophila (Matthies et al., 1996). These moto ...
... of chromatin. Bipolarity is achieved by the action of multivalent minus end–directed microtubule motor complexes, including NuMA, cytoplasmic dynein, and dynactin in frogs (Heald et al., 1996, 1997; Merdes et al., 1996) and the kinesin-like motor Ncd in Drosophila (Matthies et al., 1996). These moto ...
Physico-chemical characteristics of cell walls from Arabidopsis
... Although not synchronized, the growth of suspensioncultured Arabidopsis cells (Fig. 1) showed three reproducible phases, namely a cell division phase (days 0–6), a cell expansion phase (days 6–12) and a stationary phase (after day 12). During the cell division phase, the cell number increased about ...
... Although not synchronized, the growth of suspensioncultured Arabidopsis cells (Fig. 1) showed three reproducible phases, namely a cell division phase (days 0–6), a cell expansion phase (days 6–12) and a stationary phase (after day 12). During the cell division phase, the cell number increased about ...
Roles of the mammalian target of rapamycin
... Newly synthesized proteins will contain ‘tagged’ versions of lysine and arginine. After cell lysis and tryptic digestion of proteins, peptides are analysed by MS, where the ‘light’ and ‘heavy’ versions of each peptide can be resolved, identified and quantified. The proportion of any given peptide pr ...
... Newly synthesized proteins will contain ‘tagged’ versions of lysine and arginine. After cell lysis and tryptic digestion of proteins, peptides are analysed by MS, where the ‘light’ and ‘heavy’ versions of each peptide can be resolved, identified and quantified. The proportion of any given peptide pr ...
Molecular cloning, sequence analysis, and function of the intestinal
... cDNA ends (RACE) primers (Table 1) were then designed based on the contiged sequence. The 5´ and 3´ ends were obtained using the SMART RACE Technique, as previously described (Rajalingam et al., 2001). The resulting 5´ and 3´ end sequences were jointed with the previous partial sequences to construc ...
... cDNA ends (RACE) primers (Table 1) were then designed based on the contiged sequence. The 5´ and 3´ ends were obtained using the SMART RACE Technique, as previously described (Rajalingam et al., 2001). The resulting 5´ and 3´ end sequences were jointed with the previous partial sequences to construc ...
Changes in Cell Morphology and the Cellular Localization of Protein
... 2000). The SRPK class of kinases specifically phosphorylates SR proteins, which are splicing factors essential for transcription-coupled splicing of pre-mRNA (Misteli and Spector, 1999). Among the characteristics shared by SR proteins are domains of alternating serine and arginine amino acid residue ...
... 2000). The SRPK class of kinases specifically phosphorylates SR proteins, which are splicing factors essential for transcription-coupled splicing of pre-mRNA (Misteli and Spector, 1999). Among the characteristics shared by SR proteins are domains of alternating serine and arginine amino acid residue ...
Coupling cellular oscillators—circadian and cell division cycles in cyanobacteria Bernardo F Pando
... dark cycles. The question of how the cell division machinery is affected by this player was still open. Following up on this work, Mackey et al. [24] reported a screen based on the yeast two-hybrid assay, with which they identified the gene CdpA that interacts with CikA and has an effect on the elo ...
... dark cycles. The question of how the cell division machinery is affected by this player was still open. Following up on this work, Mackey et al. [24] reported a screen based on the yeast two-hybrid assay, with which they identified the gene CdpA that interacts with CikA and has an effect on the elo ...
Polarity Control of Spindle Positioning in the C. elegans Embryo
... balance between symmetric and asymmetric division of stem cells and tissuespecific progenitor cells. How cell polarity information is translated into proper spindle positioning has been a subject of intense study over the past 15 years. Information from a variety of systems has resulted in a general ...
... balance between symmetric and asymmetric division of stem cells and tissuespecific progenitor cells. How cell polarity information is translated into proper spindle positioning has been a subject of intense study over the past 15 years. Information from a variety of systems has resulted in a general ...
Regulation of Microtubule Stability and Mitotic
... or control pAd-GFP at MOI of 50 for 8 h in 300 l of complete medium. For determination of apoptosis, transduced HeLa cells were incubated with increasing concentrations of Taxol (2–10 M), harvested after 48 h, and analyzed for DNA content by propidium iodide staining and flow cytometry (8). For mi ...
... or control pAd-GFP at MOI of 50 for 8 h in 300 l of complete medium. For determination of apoptosis, transduced HeLa cells were incubated with increasing concentrations of Taxol (2–10 M), harvested after 48 h, and analyzed for DNA content by propidium iodide staining and flow cytometry (8). For mi ...
Weekly Lesson Plans Teacher: Alicia Penfield Class: AP Biology
... The students will… The students will… Explain metabolism and the Explain why photosynthesis role of matter and energy in is an anabolic reaction, and this process. its overall purpose. Distinguish exergonic and Summarize each stage of endergonic reactions, and photosynthesis, including the g ...
... The students will… The students will… Explain metabolism and the Explain why photosynthesis role of matter and energy in is an anabolic reaction, and this process. its overall purpose. Distinguish exergonic and Summarize each stage of endergonic reactions, and photosynthesis, including the g ...
The Euglena - Hamilton Local Schools
... that detects light, it can be seen near the reservoir. This helps the euglena find bright areas to gather sunlight to make their food. Color and label the eyespot red. Euglena can also gain nutrients by absorbing them across their cell membrane; hence, they become heterotrophic when light is not ava ...
... that detects light, it can be seen near the reservoir. This helps the euglena find bright areas to gather sunlight to make their food. Color and label the eyespot red. Euglena can also gain nutrients by absorbing them across their cell membrane; hence, they become heterotrophic when light is not ava ...
H3K4me3 demethylation by the histone
... H3 lysine 36 mono-methylation (H3K36me1), induced by the Set2 methyltransferase, is required for the recruitment of the Cdc45/GINS holo-helicase component Cdc45 (25). In eukaryotes, PR-Set7 adds one methyl group to H4K20, favoring the assembly of the core helicase (26,27). The methylation of the lys ...
... H3 lysine 36 mono-methylation (H3K36me1), induced by the Set2 methyltransferase, is required for the recruitment of the Cdc45/GINS holo-helicase component Cdc45 (25). In eukaryotes, PR-Set7 adds one methyl group to H4K20, favoring the assembly of the core helicase (26,27). The methylation of the lys ...
Hormonal control of cell division and elongation
... elements (AuxREs) were found in the promoter regions of these cyclins (Hu et al., 2003; Roudier et al., 2003); however, the functional relevance of such AuxREs has not yet been investigated. Himanen et al. (2002) showed that the transcript levels of the CDK inhibitors, KIP-RELATED PROTEIN 1 (KRP1) a ...
... elements (AuxREs) were found in the promoter regions of these cyclins (Hu et al., 2003; Roudier et al., 2003); however, the functional relevance of such AuxREs has not yet been investigated. Himanen et al. (2002) showed that the transcript levels of the CDK inhibitors, KIP-RELATED PROTEIN 1 (KRP1) a ...
Self-Replication Mechanism by Means of Self
... cells express a different functionality depending on, for instance, their place in the organism (An example of differentiation based on unique identifiers is described in [5]). When all cells have been created and differentiated, the artificial organism is ready to operate, and can be considered as ...
... cells express a different functionality depending on, for instance, their place in the organism (An example of differentiation based on unique identifiers is described in [5]). When all cells have been created and differentiated, the artificial organism is ready to operate, and can be considered as ...
DNA Damage Response in Plants: Conserved and Variable
... responses. The most important effector in animals is the p53 transcription, which functions as a tumor suppressor [61]. p53 plays a central role in the decision of a cell to either undergo cell-cycle arrest and DNA repair or apoptosis after DNA damage in animals [62]. The amount and transcriptional ...
... responses. The most important effector in animals is the p53 transcription, which functions as a tumor suppressor [61]. p53 plays a central role in the decision of a cell to either undergo cell-cycle arrest and DNA repair or apoptosis after DNA damage in animals [62]. The amount and transcriptional ...
Antiproliferative and apoptotic effects of O
... cells in the G1 and G2 phases of the cell cycle whereas DFO arrested cells in G1 and during progression through S phase. These data suggest that the partial inhibition of DNA replication observed after exposure to DFO may be due to a lower efficiency of metal chelation and/or that it does not inhibi ...
... cells in the G1 and G2 phases of the cell cycle whereas DFO arrested cells in G1 and during progression through S phase. These data suggest that the partial inhibition of DNA replication observed after exposure to DFO may be due to a lower efficiency of metal chelation and/or that it does not inhibi ...
PPT - 서울대 Biointelligence lab
... number of possible signals. It is less clear how a temporal code could be ‘read’ by downstream neurons. 1. Temporal integration code: a neuron’s firing rate at any particular moment reflects the summed firing rates of its presynaptic inputs. 2. Coincide detection mode: a neuron fires action po ...
... number of possible signals. It is less clear how a temporal code could be ‘read’ by downstream neurons. 1. Temporal integration code: a neuron’s firing rate at any particular moment reflects the summed firing rates of its presynaptic inputs. 2. Coincide detection mode: a neuron fires action po ...
Functions of the Cdc14-Family Phosphatase Clp1p in the Cell Cycle
... cytokinesis checkpoint and the function of Clp1p. While others found that Cdc14- family phosphatases , including Clp1p, have similar catalytic functions , we show that their ...
... cytokinesis checkpoint and the function of Clp1p. While others found that Cdc14- family phosphatases , including Clp1p, have similar catalytic functions , we show that their ...
File
... with actin stress fibers. Myosin II molecular motors generate cellular tension, thus detaching the cell from a substrate. Protrusive forces cause cell spreading maximizing contact of cell membrane with substrate. Through the regulation of contractile and protrusive forces, a cell achieves a balance ...
... with actin stress fibers. Myosin II molecular motors generate cellular tension, thus detaching the cell from a substrate. Protrusive forces cause cell spreading maximizing contact of cell membrane with substrate. Through the regulation of contractile and protrusive forces, a cell achieves a balance ...
Pseudolaric Acid B Induced Cell Cycle Arrest, Au
... apoptosis in HeLa cells, and PKC inhibitor staurosporine partly blocks this effect [4], therefore we investigated whether PKC was involved in autophagy and cell cycle arrest induced by PAB. Staurosporine, which was the inhibitor of conventional and novel PKC isoform, was a natural product originally ...
... apoptosis in HeLa cells, and PKC inhibitor staurosporine partly blocks this effect [4], therefore we investigated whether PKC was involved in autophagy and cell cycle arrest induced by PAB. Staurosporine, which was the inhibitor of conventional and novel PKC isoform, was a natural product originally ...
PBIO*3110 – Crop Physiology Lecture #8 Leaf Photosynthesis II
... Feedback Inhibition of Photosynthesis – Chloroplast Starch Accumulation Following the reduction phase of the Calvin cycle, the phosphoglyceraldehyde or dihydroxyacetonephosphate (or, more generally, the triose phosphate (TP)) produced is either recycled for the regeneration of RuBP or leaves the ...
... Feedback Inhibition of Photosynthesis – Chloroplast Starch Accumulation Following the reduction phase of the Calvin cycle, the phosphoglyceraldehyde or dihydroxyacetonephosphate (or, more generally, the triose phosphate (TP)) produced is either recycled for the regeneration of RuBP or leaves the ...
Quantitative phase microscopy – a new tool for investigating
... prism below the condenser, another prism above the objective, and an analyzer above the upper prism.10 The prisms allow for splitting of the incident light in the optical path before reaching the specimen and re-combination of the split beams beyond the specimen. As a result the paths of the paralle ...
... prism below the condenser, another prism above the objective, and an analyzer above the upper prism.10 The prisms allow for splitting of the incident light in the optical path before reaching the specimen and re-combination of the split beams beyond the specimen. As a result the paths of the paralle ...
Deflagellation and Flagellar Regeneration in Chlamydomonas
... new flagella of the same length, about 10-12 µm. In addition, if one flagellum of the cell is amputated, the intact flagellum will disassemble as the new flagellum assembles, until the two flagella are the same length. Then both flagella will grow to their original length at approximately the same r ...
... new flagella of the same length, about 10-12 µm. In addition, if one flagellum of the cell is amputated, the intact flagellum will disassemble as the new flagellum assembles, until the two flagella are the same length. Then both flagella will grow to their original length at approximately the same r ...
The Euglena
... called the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod li ...
... called the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod li ...
Cell Wall
... and provides these cells with structural support and protection, in addition to acting as a filtering mechanism. A major function of the cell wall is to act as a pressure vessel, preventing over-expansion when water enters the cell. Cell walls are found in plants, bacteria, fungi, algae, and some ar ...
... and provides these cells with structural support and protection, in addition to acting as a filtering mechanism. A major function of the cell wall is to act as a pressure vessel, preventing over-expansion when water enters the cell. Cell walls are found in plants, bacteria, fungi, algae, and some ar ...
Biochemical switches in the cell cycle
A series of biochemical switches control transitions between and within the various phases of the cell cycle. The cell cycle is a series of complex, ordered, sequential events that control how a single cell divides into two cells, and involves several different phases. The phases include the G1 and G2 phases, DNA replication or S phase, and the actual process of cell division, mitosis or M phase. During the M phase, the chromosomes separate and cytokinesis occurs.The switches maintain the orderly progression of the cell cycle and act as checkpoints to ensure that each phase has been properly completed before progression to the next phase. For example, Cdk, or cyclin dependent kinase, is a major control switch for the cell cycle and it allows the cell to move from G1 to S or G2 to M by adding phosphate to protein substrates. Such multi-component (involving multiple inter-linked proteins) switches have been shown to generate decisive, robust (and potentially irreversible) transitions and trigger stable oscillations. As a result, they are a subject of active research that tries to understand how such complex properties are wired into biological control systems.