Thesis - u
... Abstract: Phloem proteins 2 (PP2) are among the most abundant proteins in the phloem sieve elements. PP2s present lectin activity, ability to bind to proteins and RNAs, and they move from cell to cell. Moreover, several evidences suggest that PP2s behave like chaperones, acting on macromolecules tra ...
... Abstract: Phloem proteins 2 (PP2) are among the most abundant proteins in the phloem sieve elements. PP2s present lectin activity, ability to bind to proteins and RNAs, and they move from cell to cell. Moreover, several evidences suggest that PP2s behave like chaperones, acting on macromolecules tra ...
Inductive asymmetric cell division
... Role of WRM-1 in EMS Spindle Rotation: WRM-1 as a Masking Factor of Intrinsic Polarity What then is the biological significance of removing WRM-1 from the EMS posterior cortex? In wild-type embryos, astral microtubules emanating from one of the centrosomes appear to capture a region in the posterior ...
... Role of WRM-1 in EMS Spindle Rotation: WRM-1 as a Masking Factor of Intrinsic Polarity What then is the biological significance of removing WRM-1 from the EMS posterior cortex? In wild-type embryos, astral microtubules emanating from one of the centrosomes appear to capture a region in the posterior ...
Biology: Concepts and Connections, 6e (Campbell)
... B) have hydrophilic tails that face outward and are exposed to water. C) often have "kinks" in their tails caused by the presence of a double bond between carbons. D) remain fluid because they are tightly packed against one another. E) form impermeable layers for cells . Answer: C Topic: 5.1 Skill: ...
... B) have hydrophilic tails that face outward and are exposed to water. C) often have "kinks" in their tails caused by the presence of a double bond between carbons. D) remain fluid because they are tightly packed against one another. E) form impermeable layers for cells . Answer: C Topic: 5.1 Skill: ...
Biology: Concepts and Connections, 6e (Campbell)
... B) have hydrophilic tails that face outward and are exposed to water. C) often have "kinks" in their tails caused by the presence of a double bond between carbons. D) remain fluid because they are tightly packed against one another. E) form impermeable layers for cells . Answer: C Topic: 5.1 Skill: ...
... B) have hydrophilic tails that face outward and are exposed to water. C) often have "kinks" in their tails caused by the presence of a double bond between carbons. D) remain fluid because they are tightly packed against one another. E) form impermeable layers for cells . Answer: C Topic: 5.1 Skill: ...
Cells Mediate Adhesion to Fibronectin, Laminin, and Collagen
... Extracellular matrix receptors on vascular smooth muscle cells help in anchoring the cells during contraction and in promoting cellular migration after vessel injury. We found that rat aortic smooth muscle cells attach to surfaces coated with fibronectin, laminin, and collagen types I and IV. Cell a ...
... Extracellular matrix receptors on vascular smooth muscle cells help in anchoring the cells during contraction and in promoting cellular migration after vessel injury. We found that rat aortic smooth muscle cells attach to surfaces coated with fibronectin, laminin, and collagen types I and IV. Cell a ...
Cell Processes: Nernst Potential
... This equation was actually discovered half a century before the Goldman equation, by a Nobel prize winner named Walther Nernst -- hence, the Nernst equation. In the standard version of the equation "C" stands for "concentration". I included the second version just to make the relationship between th ...
... This equation was actually discovered half a century before the Goldman equation, by a Nobel prize winner named Walther Nernst -- hence, the Nernst equation. In the standard version of the equation "C" stands for "concentration". I included the second version just to make the relationship between th ...
KOBITO1 Encodes a Novel Plasma Membrane Protein Necessary
... Article, publication date, and citation information can be found at www.plantcell.org/cgi/doi/10.1105/tpc.002873. ...
... Article, publication date, and citation information can be found at www.plantcell.org/cgi/doi/10.1105/tpc.002873. ...
Dictyostelium lysosomal proteins with different sugar modifications
... on axenic medium, such cells have additional uncharacterized phosphoglycosylated proteins, which may include other CPs. To determine whether these proteins also have a lysosomal distribution, post-nuclear supernatants (PNS) were prepared from axenically grown cells and fractionated on a Percoll dens ...
... on axenic medium, such cells have additional uncharacterized phosphoglycosylated proteins, which may include other CPs. To determine whether these proteins also have a lysosomal distribution, post-nuclear supernatants (PNS) were prepared from axenically grown cells and fractionated on a Percoll dens ...
Targeting of P-Selectin to Two Regulated Secretory Organelles in
... organelles (RSOs) varies with cell type (35). Some proteins are found in the membranes of both organelles, reflecting the common requirements of exocytotic machinery (5, 36). This raises the question of how such a biorganellar distribution is attained. The itinerary of such proteins must be complex, ...
... organelles (RSOs) varies with cell type (35). Some proteins are found in the membranes of both organelles, reflecting the common requirements of exocytotic machinery (5, 36). This raises the question of how such a biorganellar distribution is attained. The itinerary of such proteins must be complex, ...
Visualizing microtubule dynamics and membrane - UvA-DARE
... EMM tomography revealed the existence of at least two different kinds of vesicles during celll plate formation which could suggest the involvement of multiple membrane sources andd trafficking pathways driving cell plate formation (Segui-Simarro et al., 2004). Inn addition to these observations, rec ...
... EMM tomography revealed the existence of at least two different kinds of vesicles during celll plate formation which could suggest the involvement of multiple membrane sources andd trafficking pathways driving cell plate formation (Segui-Simarro et al., 2004). Inn addition to these observations, rec ...
The Molecular Organization of Endothelial Cell to
... immunoglobulin superfamily (Newman et al., 1990; Simmons et al., 1990; and which is present also in platelets and leukocytes) and vascular endothelial cadherin (VE-cadherin, Brevario, E, L. Caveda, M. Corada, I. Martin-Padura, P. Navarro, J. Golay, M. Introna, M. G. Lampugnani, and E. Dejana, manusc ...
... immunoglobulin superfamily (Newman et al., 1990; Simmons et al., 1990; and which is present also in platelets and leukocytes) and vascular endothelial cadherin (VE-cadherin, Brevario, E, L. Caveda, M. Corada, I. Martin-Padura, P. Navarro, J. Golay, M. Introna, M. G. Lampugnani, and E. Dejana, manusc ...
Lipid transfer and metabolism across the endolysosomal
... yeast, lysosomes/vacuoles and mitochondria exchange lipids, by means of a MCS (vCLAMP) that can partly compensate for ERMES. In mammals, a lipid transfer role may be played by the MCSs between LROs (melanosomes) and mitochondria. (2) Lysosomes receive lipids from the ER via the secretory pathway, an ...
... yeast, lysosomes/vacuoles and mitochondria exchange lipids, by means of a MCS (vCLAMP) that can partly compensate for ERMES. In mammals, a lipid transfer role may be played by the MCSs between LROs (melanosomes) and mitochondria. (2) Lysosomes receive lipids from the ER via the secretory pathway, an ...
Chapter 1 - Utrecht University Repository
... An eukaryotic cell is separated from its extracellular environment by its plasma membrane and is compartmentalized into membrane-bound organelles. The integrity of these membranes is essential for cell life and differentiation. At the same time transport of solutes and macromolecules across and betw ...
... An eukaryotic cell is separated from its extracellular environment by its plasma membrane and is compartmentalized into membrane-bound organelles. The integrity of these membranes is essential for cell life and differentiation. At the same time transport of solutes and macromolecules across and betw ...
Worksheet
... After that, the mass of water in beaker 3 is measured to find out the amount of water lost due to evaporation (initial volume is 50 g). Meanwhile, the mass of water in beaker 2 is also measured and the change in mass of water is compared with that in beaker 3. Meanwhile, the mass of potato in beaker ...
... After that, the mass of water in beaker 3 is measured to find out the amount of water lost due to evaporation (initial volume is 50 g). Meanwhile, the mass of water in beaker 2 is also measured and the change in mass of water is compared with that in beaker 3. Meanwhile, the mass of potato in beaker ...
Lipid defense response of Chlorella as theoretical background in
... occur in organisms as a consequence of lipid deport, can be studied by modeling artificially modified Chlorella ontogenesis. After several divisions, Chlorella cells have fates or options in cell differentiation to form new cell populations. Two of them are very interesting for us (Figs. 1a-1d, and ...
... occur in organisms as a consequence of lipid deport, can be studied by modeling artificially modified Chlorella ontogenesis. After several divisions, Chlorella cells have fates or options in cell differentiation to form new cell populations. Two of them are very interesting for us (Figs. 1a-1d, and ...
In vitro control of neuronal polarity by
... absence of neurotrophicity of GAGs previously immobilized on the culture substratum. Although the mechanisms involved in GAGs neurotrophic effects and in the separate regulation of neuronal polarity by HS and DS were not elucidated, we found that, as opposed to HS, DS was able to enhance neuronal ad ...
... absence of neurotrophicity of GAGs previously immobilized on the culture substratum. Although the mechanisms involved in GAGs neurotrophic effects and in the separate regulation of neuronal polarity by HS and DS were not elucidated, we found that, as opposed to HS, DS was able to enhance neuronal ad ...
cell cycle pp
... In unicellular organisms, division of one cell reproduces the entire organism Cell division enables multicellular eukaryotes to develop from a single cell and, once fully grown, to renew, repair, or replace cells as needed Cell division is an integral part of the cell cycle, the life of a cel ...
... In unicellular organisms, division of one cell reproduces the entire organism Cell division enables multicellular eukaryotes to develop from a single cell and, once fully grown, to renew, repair, or replace cells as needed Cell division is an integral part of the cell cycle, the life of a cel ...
Non-equilibration of hydrostatic pressure in blebbing cells Guillaume T. Charras
... osmolytes were applied locally to cells by injecting medium containing inhibitor via a micropipette into a laminar fluid flow24,25. The treated region was visualized by adding a fluorescent tracer to the pipette medium, whereas blebbing was observed using differential interference contrast (DIC) mic ...
... osmolytes were applied locally to cells by injecting medium containing inhibitor via a micropipette into a laminar fluid flow24,25. The treated region was visualized by adding a fluorescent tracer to the pipette medium, whereas blebbing was observed using differential interference contrast (DIC) mic ...
A-new-precipitation-technique-provides-evidence-for-the
... negative fixed charge of the cell wall. Cell walls provide mechanical strength to the plant, as well as functioning as a porous network involved in a diverse range of passive transport processes (gas, water, nutrient ions, assimilates). The porous network consists of intermicrofibrillar and intermic ...
... negative fixed charge of the cell wall. Cell walls provide mechanical strength to the plant, as well as functioning as a porous network involved in a diverse range of passive transport processes (gas, water, nutrient ions, assimilates). The porous network consists of intermicrofibrillar and intermic ...
Effect of Water Stress on Cell Division and Cell
... 1991; Martinez et al., 1992; Hemerly et al., 1993; for review, see John, 1996). Furthermore, a role of mitotically active CDK in driving plant mitosis is directly shown by the stimulation of mitosis that is induced by injection of the mitotically active form of plant Cdc2 protein into stamen hairs o ...
... 1991; Martinez et al., 1992; Hemerly et al., 1993; for review, see John, 1996). Furthermore, a role of mitotically active CDK in driving plant mitosis is directly shown by the stimulation of mitosis that is induced by injection of the mitotically active form of plant Cdc2 protein into stamen hairs o ...
chlamydomonas gymnogama and - The Journal of Cell Biology
... nants. It is possible that partial lysis of cell walls tein similar chemically to that of cell walls reinoccurs before and during the wall-shedding proc- forces the idea that what are at present undetectaess, as partial lysis of cell walls has been observed ble or relatively subtle differences in ch ...
... nants. It is possible that partial lysis of cell walls tein similar chemically to that of cell walls reinoccurs before and during the wall-shedding proc- forces the idea that what are at present undetectaess, as partial lysis of cell walls has been observed ble or relatively subtle differences in ch ...
The co-ordination of cell division, differentiation and morphogenesis
... The first description of the cellular nature of biological material was made over 300 years ago by Robert Hooke. Although the concept that plant material consisted of discrete compartments became rapidly accepted, it was not until the middle of the 19th century that it became clear that animals too ...
... The first description of the cellular nature of biological material was made over 300 years ago by Robert Hooke. Although the concept that plant material consisted of discrete compartments became rapidly accepted, it was not until the middle of the 19th century that it became clear that animals too ...
Fischbarg 2010 review
... Aquaporins. Physiol Rev 90: 1271–1290, 2010; doi:10.1152/physrev.00025.2009.—The mechanism of epithelial fluid transport remains unsolved, which is partly due to inherent experimental difficulties. However, a preparation with which our laboratory works, the corneal endothelium, is a simple leaky sec ...
... Aquaporins. Physiol Rev 90: 1271–1290, 2010; doi:10.1152/physrev.00025.2009.—The mechanism of epithelial fluid transport remains unsolved, which is partly due to inherent experimental difficulties. However, a preparation with which our laboratory works, the corneal endothelium, is a simple leaky sec ...
Cell Death Suppressor, Arabidopsis BI
... maintained inhibitory function toward Bax-induced cell death in yeast, the AtBI-30 lacked the C-terminal coiled-coil structure and such function (Kawai-Yamada et al 2004) (Figure 1A). As shown in Figure 1B, AtBI-29 and 32 maintained the interaction with HvCaM3, while AtBI-30 did not. These results s ...
... maintained inhibitory function toward Bax-induced cell death in yeast, the AtBI-30 lacked the C-terminal coiled-coil structure and such function (Kawai-Yamada et al 2004) (Figure 1A). As shown in Figure 1B, AtBI-29 and 32 maintained the interaction with HvCaM3, while AtBI-30 did not. These results s ...
Cytosol
The cytosol or intracellular fluid (ICF) or cytoplasmic matrix is the liquid found inside cells. It is separated into compartments by membranes. For example, the mitochondrial matrix separates the mitochondrion into many compartments.In the eukaryotic cell, the cytosol is within the cell membrane and is part of the cytoplasm, which also comprises the mitochondria, plastids, and other organelles (but not their internal fluids and structures); the cell nucleus is separate. In prokaryotes, most of the chemical reactions of metabolism take place in the cytosol, while a few take place in membranes or in the periplasmic space. In eukaryotes, while many metabolic pathways still occur in the cytosol, others are contained within organelles.The cytosol is a complex mixture of substances dissolved in water. Although water forms the large majority of the cytosol, its structure and properties within cells is not well understood. The concentrations of ions such as sodium and potassium are different in the cytosol than in the extracellular fluid; these differences in ion levels are important in processes such as osmoregulation, cell signaling, and the generation of action potentials in excitable cells such as endocrine, nerve and muscle cells. The cytosol also contains large amounts of macromolecules, which can alter how molecules behave, through macromolecular crowding.Although it was once thought to be a simple solution of molecules, the cytosol has multiple levels of organization. These include concentration gradients of small molecules such as calcium, large complexes of enzymes that act together to carry out metabolic pathways, and protein complexes such as proteasomes and carboxysomes that enclose and separate parts of the cytosol.