Oxygen Limitation Suppresses Reactive Oxygen Species Formation
... increase in solubility in water and decreased ability to diffuse into the cell (14). It is probable that magnesium played a factor in the differences as M9 minimal medium contains more than 20 times the concentration of magnesium ions as LB. Our treatment condition had a Mg2+/norfloxacin ratio of 10 ...
... increase in solubility in water and decreased ability to diffuse into the cell (14). It is probable that magnesium played a factor in the differences as M9 minimal medium contains more than 20 times the concentration of magnesium ions as LB. Our treatment condition had a Mg2+/norfloxacin ratio of 10 ...
Chapter 1
... __ Vocabulary PuzzleMaker, Ch. 2, ca7.msscience.com (EL) __ Science Activities for Advanced Learners, p. 13 __ Language Arts Support for Science, Ch. 2 (EL) __ School to Home Connection Activities, Ch. 2 __ Virtual Lab __ Culturally Relevant Activities for Science __ StudentWorks Plus, Ch. 2, Less ...
... __ Vocabulary PuzzleMaker, Ch. 2, ca7.msscience.com (EL) __ Science Activities for Advanced Learners, p. 13 __ Language Arts Support for Science, Ch. 2 (EL) __ School to Home Connection Activities, Ch. 2 __ Virtual Lab __ Culturally Relevant Activities for Science __ StudentWorks Plus, Ch. 2, Less ...
Romeo And Juliet
... • In the orchard Juliet is waiting for the nurse to come back so she can hear the word on Romeo. • The nurse tells Juliet that Romeo will marry her at lord ...
... • In the orchard Juliet is waiting for the nurse to come back so she can hear the word on Romeo. • The nurse tells Juliet that Romeo will marry her at lord ...
Novel Regulators of Vascular Development in Arabidopsis
... Scheres et al., 1995). As described previously, the cytokinin signal is transduced via phosphotransfer from AHKs to ARABIDOPSIS HISTIDINE PHOSPHOTRANSFER PROTEIN (AHP). The quintuple AHP mutant ahp1 ahp2 ahp3 ahp4 ahp5 exhibits the extra protoxylem phenotype similar to that of ahk. (Hutchison et al. ...
... Scheres et al., 1995). As described previously, the cytokinin signal is transduced via phosphotransfer from AHKs to ARABIDOPSIS HISTIDINE PHOSPHOTRANSFER PROTEIN (AHP). The quintuple AHP mutant ahp1 ahp2 ahp3 ahp4 ahp5 exhibits the extra protoxylem phenotype similar to that of ahk. (Hutchison et al. ...
An Ancient Yeast for Young Geneticists: A Primer on the
... conserved from yeast to humans but absent from bacteria, such as organelle biogenesis and cytoskeletal organization, or to study mechanisms such as transcription, translation, and DNA replication, in which the eukaryotic components and processes are significantly different from those of their bacteri ...
... conserved from yeast to humans but absent from bacteria, such as organelle biogenesis and cytoskeletal organization, or to study mechanisms such as transcription, translation, and DNA replication, in which the eukaryotic components and processes are significantly different from those of their bacteri ...
Synapse-Specific, Long-Term Facilitation of Aplysia
... a comparable facilitation of the EPSP at both synapses (Figure 1C). In the animal, serotonergic interneurons form synapses onto the sensory cell presynaptic terminal, and the release of serotonin from these interneurons produces facilitation of the sensory-motor neuron synapse. To mimic this geometr ...
... a comparable facilitation of the EPSP at both synapses (Figure 1C). In the animal, serotonergic interneurons form synapses onto the sensory cell presynaptic terminal, and the release of serotonin from these interneurons produces facilitation of the sensory-motor neuron synapse. To mimic this geometr ...
Trainor - Master BMC
... that even when an organism ceases to function, developmental mechanisms still kick in to try and preserve cells, organelles, and other machinery despite the ultimate futility of doing so. Therefore, one could consider Developmental Biology to be a process that begins with a single cell and ends only ...
... that even when an organism ceases to function, developmental mechanisms still kick in to try and preserve cells, organelles, and other machinery despite the ultimate futility of doing so. Therefore, one could consider Developmental Biology to be a process that begins with a single cell and ends only ...
Mycobacterium tuberculosis adhesins: potential
... the most common form of bacterial adhesins. They are elongated, multi-subunit protein structures that are able to interact with glycoprotein and glycolipid receptors found on host cells (Esko & Sharon, 2009). To be functional, adhesins must be anchored onto or displayed on the bacterial cell surface ...
... the most common form of bacterial adhesins. They are elongated, multi-subunit protein structures that are able to interact with glycoprotein and glycolipid receptors found on host cells (Esko & Sharon, 2009). To be functional, adhesins must be anchored onto or displayed on the bacterial cell surface ...
Effect of the Viral Proteins on the Fluidity of the Membrane Lipids in
... core can be seen with electron microscopy to acquire a membrane only at the cell surface (Acheson & Tamm, 1967; Brown et al., 1972) and because the phospholipid composition of the virus more closely resembles that of the plasma membrane than that of the whole cell (Quigley et al., 1971; Hirschberg & ...
... core can be seen with electron microscopy to acquire a membrane only at the cell surface (Acheson & Tamm, 1967; Brown et al., 1972) and because the phospholipid composition of the virus more closely resembles that of the plasma membrane than that of the whole cell (Quigley et al., 1971; Hirschberg & ...
NUCLEAR PROTEINS II. Similarity of Nonhistone Proteins in
... NaCI washes of isolated mouse liver nuclei. These studies led to the following conclusions: (a) all the prominent NHP which remain bound to D N A are also present in somewhat similar proportions in the saline-EDTA, Tris, and 0.35 M NaCI washes of nuclei; (b) a protein comigrating with actin is promi ...
... NaCI washes of isolated mouse liver nuclei. These studies led to the following conclusions: (a) all the prominent NHP which remain bound to D N A are also present in somewhat similar proportions in the saline-EDTA, Tris, and 0.35 M NaCI washes of nuclei; (b) a protein comigrating with actin is promi ...
Apical ectodermal ridge morphogenesis in limb development is
... to AER malformations, as evidenced by morphology and Fgf8 expression 48 to 72 hours post-electroporation (Fig. 2; see Table S1 in the supplementary material). A high percentage of GFPpositive embryos (92% of cases at 48 hours, 100% at 72 hours) showed alterations in the AER. This included branched A ...
... to AER malformations, as evidenced by morphology and Fgf8 expression 48 to 72 hours post-electroporation (Fig. 2; see Table S1 in the supplementary material). A high percentage of GFPpositive embryos (92% of cases at 48 hours, 100% at 72 hours) showed alterations in the AER. This included branched A ...
Rat embryonic ectoderm as renal isograft - Development
... Pedersen, 1978; Libbus & Hsu, 1980; Uno, 1982). The transformation of epithelial cells into mesenchymal ones is a phenomenon of general importance in developmental biology. It can be induced in some embryonic epithelia by appropriate culture conditions (Hay, 1978; Greenberg & Hay, 1982). It is not y ...
... Pedersen, 1978; Libbus & Hsu, 1980; Uno, 1982). The transformation of epithelial cells into mesenchymal ones is a phenomenon of general importance in developmental biology. It can be induced in some embryonic epithelia by appropriate culture conditions (Hay, 1978; Greenberg & Hay, 1982). It is not y ...
Prediction of protease substrates using sequence
... SVMs are machine learning algorithms that can be used for classification. They create a kernel function hypersurface that maximally separates two sets of n-dimensional training set (i.e. classified) vectors, followed by predicting an unclassified vector as falling on one side or the other of the sep ...
... SVMs are machine learning algorithms that can be used for classification. They create a kernel function hypersurface that maximally separates two sets of n-dimensional training set (i.e. classified) vectors, followed by predicting an unclassified vector as falling on one side or the other of the sep ...
Postmortem Diagnosis of Anaphylaxis
... of histamine and a lack of specificity for mast cells, they have not been investigated systematically on postmortem material. Identification of neutral proteases as constituents of the mast cell granules (40,41), and the development of monoclonal antibodies against mast cell tryptase and chymase (42 ...
... of histamine and a lack of specificity for mast cells, they have not been investigated systematically on postmortem material. Identification of neutral proteases as constituents of the mast cell granules (40,41), and the development of monoclonal antibodies against mast cell tryptase and chymase (42 ...
Cell signalling - The Open University
... The fundamental principles of signalling can be illustrated by a simple example in the yeast S. cerevisiae (Figure 1). In order to sexually reproduce, a yeast cell needs to be able to make physical contact with another yeast cell. First, it has to ‘call’ to yeast cells of the opposite mating type. I ...
... The fundamental principles of signalling can be illustrated by a simple example in the yeast S. cerevisiae (Figure 1). In order to sexually reproduce, a yeast cell needs to be able to make physical contact with another yeast cell. First, it has to ‘call’ to yeast cells of the opposite mating type. I ...
Copyright Information of the Article Published Online
... The origin of mitochondria: The origin of mitochondria is more likely to be endosymbiotic. The endosymbiotic theory indicates that mitochondria were initially free-living prokaryotes that entered eukaryotic cells and became organelles. However, this theory has not always been accepted by the scienti ...
... The origin of mitochondria: The origin of mitochondria is more likely to be endosymbiotic. The endosymbiotic theory indicates that mitochondria were initially free-living prokaryotes that entered eukaryotic cells and became organelles. However, this theory has not always been accepted by the scienti ...
Planctomycetes – a phylum of emerging interest for
... membrane. Such tubule structures are interesting as possible analogs or precursors of cytoskeletal structures of eukaryotes such as microtubules, especially in the context of the discovery of tubulin homologs in Prosthecobacter dejongeii (Jenkins et al., 2002b) and actual tubules in the uncultured s ...
... membrane. Such tubule structures are interesting as possible analogs or precursors of cytoskeletal structures of eukaryotes such as microtubules, especially in the context of the discovery of tubulin homologs in Prosthecobacter dejongeii (Jenkins et al., 2002b) and actual tubules in the uncultured s ...
Evolutionary Novelties: How Fish Have Built a Heater Out of Muscle1
... The evolution of endothermic mechanisms in teleost fish utilizing skeletal muscle as the heat source provides insight into the role of aerobic muscle for heat generation. However, the ability of billfishes, tunas (and some sharks) to raise their brain and eye temperature is not due entirely to muscu ...
... The evolution of endothermic mechanisms in teleost fish utilizing skeletal muscle as the heat source provides insight into the role of aerobic muscle for heat generation. However, the ability of billfishes, tunas (and some sharks) to raise their brain and eye temperature is not due entirely to muscu ...
Document
... Sturgill TW, Cohen A, Diefenbacher M, Trautwein M, Martin DE, Hall MN. TOR1 and TOR2 have distinct locations in live cells. Eukaryot Cell. 2008 Oct;7(10):1819-30 Loewith R, Jacinto E, Wullschleger S, Lorberg A, Crespo JL, Bonenfant D, Oppliger W, Jenoe P, Hall MN. Two TOR complexes, only one of whic ...
... Sturgill TW, Cohen A, Diefenbacher M, Trautwein M, Martin DE, Hall MN. TOR1 and TOR2 have distinct locations in live cells. Eukaryot Cell. 2008 Oct;7(10):1819-30 Loewith R, Jacinto E, Wullschleger S, Lorberg A, Crespo JL, Bonenfant D, Oppliger W, Jenoe P, Hall MN. Two TOR complexes, only one of whic ...
FAK suppresses Rho activity to promote focal adhesion turnover
... the effector Rhotekin, we previously demonstrated complex regulation of Rho by both soluble mitogens and adhesion to the ECM protein fibronectin (FN) (Ren et al., 1999). In particular, we observed a rapid decrease of Rho activity when Swiss 3T3 cells were plated on fibronectin (FN), followed by retu ...
... the effector Rhotekin, we previously demonstrated complex regulation of Rho by both soluble mitogens and adhesion to the ECM protein fibronectin (FN) (Ren et al., 1999). In particular, we observed a rapid decrease of Rho activity when Swiss 3T3 cells were plated on fibronectin (FN), followed by retu ...
The role of Arabidopsis CRK5 protein kinase in the regulation of root
... seven closely related members of the CRK family, the CRK5 kinase (At3g50530) carries an Nterminal MGxC myristylation/palmitoylation motive, which is conserved in all plasma membrane-associated CRK proteins examined so far in other plant species. The N-terminal domain of CRK5 also harbours a nuclear ...
... seven closely related members of the CRK family, the CRK5 kinase (At3g50530) carries an Nterminal MGxC myristylation/palmitoylation motive, which is conserved in all plasma membrane-associated CRK proteins examined so far in other plant species. The N-terminal domain of CRK5 also harbours a nuclear ...
Influence of Notch on dorsoventral
... Activated Notch in dorsal cells acts together with the dorsal-specific gene ap (not shown) to promote expression of Ser. Ser is blocked (black T) from signaling (gray arrow) to other dorsal cells by Fng, and thus is limited to signaling back across the compartment boundary (thick black arrow) to ven ...
... Activated Notch in dorsal cells acts together with the dorsal-specific gene ap (not shown) to promote expression of Ser. Ser is blocked (black T) from signaling (gray arrow) to other dorsal cells by Fng, and thus is limited to signaling back across the compartment boundary (thick black arrow) to ven ...
Sulfated polysaccharides from marine sponges
... significantly higher concentrations to achieve the same effect as the homologous sulfated polysaccharide (Figure 5B). Clearly, the purified sulfated polysaccharide inhibits aggregation of marine sponge cells in a species-specific way. Heparin can mimic this action but it is less efficient than the h ...
... significantly higher concentrations to achieve the same effect as the homologous sulfated polysaccharide (Figure 5B). Clearly, the purified sulfated polysaccharide inhibits aggregation of marine sponge cells in a species-specific way. Heparin can mimic this action but it is less efficient than the h ...
Cell-cycle-regulated expression of STIL controls centriole number in
... To study the association of STIL with centrioles throughout the cell cycle, we stained asynchronously growing U2OS cells with antibodies against STIL, CP110 and Cep135. Cep135 served as a marker for centrioles and CP110 was used to time the emergence of newly forming centrioles during S phase (Chen ...
... To study the association of STIL with centrioles throughout the cell cycle, we stained asynchronously growing U2OS cells with antibodies against STIL, CP110 and Cep135. Cep135 served as a marker for centrioles and CP110 was used to time the emergence of newly forming centrioles during S phase (Chen ...
PDF - Wiley Online Library
... et al., 1981). Rz and Rz1 are a class II CM protein and an OM lipoprotein, respectively, forming a complex (spanin) that potentially spans the entire periplasm. The Rz and Rz1 spanin (see below) is thought to promote fusion of the CM and OM, thus eliminating the last barrier that prevents efficient ...
... et al., 1981). Rz and Rz1 are a class II CM protein and an OM lipoprotein, respectively, forming a complex (spanin) that potentially spans the entire periplasm. The Rz and Rz1 spanin (see below) is thought to promote fusion of the CM and OM, thus eliminating the last barrier that prevents efficient ...
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.