The argos Gene Encodes a Diffusible Factor
... neural recruitment after the mystery cells are transformed. In a few cases we see as many as 20 cone cells in a single cluster. These may be the products of the ommatidial fusions that are occasionally seen (approximately 5-10 per retina; Figure 21) and which appear to be caused by primary pigment c ...
... neural recruitment after the mystery cells are transformed. In a few cases we see as many as 20 cone cells in a single cluster. These may be the products of the ommatidial fusions that are occasionally seen (approximately 5-10 per retina; Figure 21) and which appear to be caused by primary pigment c ...
Atomic Force Microscopy in Cancer Cell Research
... however also true for any AFM scan of surface. The deformation has to be taken into account while processing the data. Fortunately cells have enough flat areas. Therefore knowledge of this topography can be used simply as a filtering rule, which allows one to choose only those force curves that are re ...
... however also true for any AFM scan of surface. The deformation has to be taken into account while processing the data. Fortunately cells have enough flat areas. Therefore knowledge of this topography can be used simply as a filtering rule, which allows one to choose only those force curves that are re ...
Identification of the factors that interact with NCBP, an 80 kDa
... Izaurralde et al. (16). They have shown that NCBP/CBP80 is stably complexed with CBP20, a 20 kDa protein, and that the protein complex is involved in pre-mRNA splicing (16). They have also shown by UV-induced crosslinking experiments that CBP20, but not CBP80, is efficiently crosslinked to (or near) ...
... Izaurralde et al. (16). They have shown that NCBP/CBP80 is stably complexed with CBP20, a 20 kDa protein, and that the protein complex is involved in pre-mRNA splicing (16). They have also shown by UV-induced crosslinking experiments that CBP20, but not CBP80, is efficiently crosslinked to (or near) ...
Human Systems and Homeostasis
... into only one type of cell. For instance, a stem cell might become a cardiac muscle cell or a spinal neuron. These committed cells still retain all of the genetic information needed to build an entire organism. However, during determination, they lose their ability to express some of this informatio ...
... into only one type of cell. For instance, a stem cell might become a cardiac muscle cell or a spinal neuron. These committed cells still retain all of the genetic information needed to build an entire organism. However, during determination, they lose their ability to express some of this informatio ...
Cnidarians (Phylum Cnidaria)
... cnidarians include both polyp and medusa stages (jellyfish, for example). Others spend their entire lives as one of the two. ...
... cnidarians include both polyp and medusa stages (jellyfish, for example). Others spend their entire lives as one of the two. ...
AP Biology Unit 2 Exam Study Guide 1. Explain the requirements for
... 22. Explain the process that was used to identify the structures within the cell membrane and its significance. 23. Use the Laws of Thermodynamics to explain the flow of energy through a food web. 24. Explain the role of the substances which make up the structure of plant cells. 25. Explain how and ...
... 22. Explain the process that was used to identify the structures within the cell membrane and its significance. 23. Use the Laws of Thermodynamics to explain the flow of energy through a food web. 24. Explain the role of the substances which make up the structure of plant cells. 25. Explain how and ...
PDF - Eleanor Maine Research Lab
... The C. elegans germline provides an excellent model for analyzing the regulation of stem cell activity and the decision to differentiate and undergo meiotic development. The distal end of the adult hermaphrodite germline contains the proliferative zone, which includes a population of mitotically cyc ...
... The C. elegans germline provides an excellent model for analyzing the regulation of stem cell activity and the decision to differentiate and undergo meiotic development. The distal end of the adult hermaphrodite germline contains the proliferative zone, which includes a population of mitotically cyc ...
PersPeCTIves
... actin homologues that can form actin-like cell polarity. Actin (red) and its prokaryotic homologues have many intimate connections with membranes in eukaryotes (see figure; top panel) and prokaryotes (bottom panel). Membranes can filaments in vitro and in bacteria42,43. As in nucleate the assembly o ...
... actin homologues that can form actin-like cell polarity. Actin (red) and its prokaryotic homologues have many intimate connections with membranes in eukaryotes (see figure; top panel) and prokaryotes (bottom panel). Membranes can filaments in vitro and in bacteria42,43. As in nucleate the assembly o ...
Preliminary isolation report of aerobic magnetotactic
... meter, known as magnetosome. The main constituent of magnetosome is magnetite (Fe3O4) or greigite (Fe3S4) [2,3]. Moreover, intracellular formation of iron pyrite (FeS2) and weak magnetic crystals pyrrhotite (Fe7S8) were also reported in literature [4, 5]. Magnetic crystals formation within the cell ...
... meter, known as magnetosome. The main constituent of magnetosome is magnetite (Fe3O4) or greigite (Fe3S4) [2,3]. Moreover, intracellular formation of iron pyrite (FeS2) and weak magnetic crystals pyrrhotite (Fe7S8) were also reported in literature [4, 5]. Magnetic crystals formation within the cell ...
Asymmetric Cell Divisions: Zygotes of Fucoid Algae as a
... How does a single cell, the zygote, give rise to a complex organism with many different cell and tissue types? The answer to this question lies in the ability of cells in a growing embryo to acquire separate identities, a feat that is often accomplished by asymmetric cell divisions. By definition, as ...
... How does a single cell, the zygote, give rise to a complex organism with many different cell and tissue types? The answer to this question lies in the ability of cells in a growing embryo to acquire separate identities, a feat that is often accomplished by asymmetric cell divisions. By definition, as ...
biochem ch 37 [2-9
... Protein Digestion and Amino Acid Absorption Proteolytic enzymes (proteases) break down dietary proteins into their constituent AAs in stomach and intestine o Many synthesized as zymogens In stomach, pepsin begins digestion of proteins by hydrolyzing them to smaller polypeptides In small intest ...
... Protein Digestion and Amino Acid Absorption Proteolytic enzymes (proteases) break down dietary proteins into their constituent AAs in stomach and intestine o Many synthesized as zymogens In stomach, pepsin begins digestion of proteins by hydrolyzing them to smaller polypeptides In small intest ...
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... The elimination of senescent cells is an attractive avenue for developing new interventions to treat age-related pathologies, and several laboratories are searching for small molecules that might be of potential interest for future clinical studies (see (Dorr et al., 2013) for an example). In the sk ...
... The elimination of senescent cells is an attractive avenue for developing new interventions to treat age-related pathologies, and several laboratories are searching for small molecules that might be of potential interest for future clinical studies (see (Dorr et al., 2013) for an example). In the sk ...
lysosomes
... to the synovial tissue • This results in hypoxia and metabolic acidosis. • The reduction in pH results in the release of hydrolytic lysosomal enzymes from the synovial cells into the surrounding tissue • This initiates erosion of the articular cartilage. ...
... to the synovial tissue • This results in hypoxia and metabolic acidosis. • The reduction in pH results in the release of hydrolytic lysosomal enzymes from the synovial cells into the surrounding tissue • This initiates erosion of the articular cartilage. ...
CycD1, a Putative G1 Cyclin from Antirrhinum majus, Accelerates
... transgenic lines in BY-2 expressing GFP:CycD1. Several independent lines were produced, all of which showed the same pattern of nuclear localization as in Arabidopsis, albeit at a much lower level. We also observed some small fluorescent bodies surrounding the nuclei, but these were also found in co ...
... transgenic lines in BY-2 expressing GFP:CycD1. Several independent lines were produced, all of which showed the same pattern of nuclear localization as in Arabidopsis, albeit at a much lower level. We also observed some small fluorescent bodies surrounding the nuclei, but these were also found in co ...
Network structure determines patterns of network
... We create the initial networks prior to neurogenesis by placing 1000 excitatory neurons and either 200 (normal conditions) or 100 (reduced inhibition) inhibitory neurons at random on a two-dimensional square lattice with 40 lattice sites per side and periodic boundaries. A lattice site can hold at m ...
... We create the initial networks prior to neurogenesis by placing 1000 excitatory neurons and either 200 (normal conditions) or 100 (reduced inhibition) inhibitory neurons at random on a two-dimensional square lattice with 40 lattice sites per side and periodic boundaries. A lattice site can hold at m ...
Cell crawling mediates collective cell migration to
... process seem less clear because the driving mechanism could be www.pnas.org/cgi/doi/10.1073/pnas.1117814109 ...
... process seem less clear because the driving mechanism could be www.pnas.org/cgi/doi/10.1073/pnas.1117814109 ...
What kind of transport?
... – Peripheral proteins = not embedded within, attached loosely to the surface ...
... – Peripheral proteins = not embedded within, attached loosely to the surface ...
an overview on the antiviral activity of lactoferrin
... of the interaction of Lf with cell surface GAGs (17). Anti-HSV activity has been studied on many cell lines, both lacking and expressing different GAGs at the cell surface. The results have shown that the presence of HS at the cell surface is important for Lf to exert its antiviral activity (18). As ...
... of the interaction of Lf with cell surface GAGs (17). Anti-HSV activity has been studied on many cell lines, both lacking and expressing different GAGs at the cell surface. The results have shown that the presence of HS at the cell surface is important for Lf to exert its antiviral activity (18). As ...
feven tigistu-sahle – metabolism of polyunsaturated fatty
... (FA) and glycerophospholipid (GPL) profiles of hBMSCs were determined. During the cell passaging, arachidonic acid (20:4n-6) -containing species of phosphatidylcholine (PC) and phosphatidylethanolamine (PE) accumulated while the species containing monounsaturated fatty acids (MUFA) or n-3 polyunsatu ...
... (FA) and glycerophospholipid (GPL) profiles of hBMSCs were determined. During the cell passaging, arachidonic acid (20:4n-6) -containing species of phosphatidylcholine (PC) and phosphatidylethanolamine (PE) accumulated while the species containing monounsaturated fatty acids (MUFA) or n-3 polyunsatu ...
Aluminum stress and its role in the phospholipid signaling pathway
... the normal ionic strength and at a pH of 4.3. Under these conditions, the ability to grow in the presence of aluminum was diminished (Fig. 1) (43). Using this cell line as a model, we have focused on searching for the signaling pathway associated with growth inhibition that results from Al-mediated ...
... the normal ionic strength and at a pH of 4.3. Under these conditions, the ability to grow in the presence of aluminum was diminished (Fig. 1) (43). Using this cell line as a model, we have focused on searching for the signaling pathway associated with growth inhibition that results from Al-mediated ...
The Protoplast: Plasma Membrane, Nucleus, and Cytoplasmic
... remain interconnected by cytoplasmic strands known as plasmodesmata, which traverse the walls and unite the entire plant body into an organic whole. Appropriately, plants have been characterized as supracellular organisms (Lucas et al., 1993). In its modern form the cell theory states simply that: ( ...
... remain interconnected by cytoplasmic strands known as plasmodesmata, which traverse the walls and unite the entire plant body into an organic whole. Appropriately, plants have been characterized as supracellular organisms (Lucas et al., 1993). In its modern form the cell theory states simply that: ( ...
A Caveolin Dominant Negative Mutant Associates with Lipid Bodies
... protein was present at levels 3–4 times higher than endogenous levels (data not shown). In some experiments, before and/or after transfection cells were treated with 4.5 g/ml of U18666A (from a stock solution in water stored at ⫺20⬚C for less than 3 months). In some experiments, cells were preincub ...
... protein was present at levels 3–4 times higher than endogenous levels (data not shown). In some experiments, before and/or after transfection cells were treated with 4.5 g/ml of U18666A (from a stock solution in water stored at ⫺20⬚C for less than 3 months). In some experiments, cells were preincub ...
Poster
... main function of this protein is giving the "stop" signal to the process of cell reproduction. Unfortunately, this protein is not perfect and severe consequences, such as cancer, can arise when H-Ras GTPase malfunctions. H-Ras GTPase is a protein from the large family of enzymes that bind and split ...
... main function of this protein is giving the "stop" signal to the process of cell reproduction. Unfortunately, this protein is not perfect and severe consequences, such as cancer, can arise when H-Ras GTPase malfunctions. H-Ras GTPase is a protein from the large family of enzymes that bind and split ...
OPEN STOMATA1 opens the door to ABA signaling in Arabidopsis
... [7]. Whether these differences reflect true species difference in kinase function, or differences in the experimental approaches used in the two studies (i.e. null versus dominant negative mutants or the use of different ABA concentrations) remains to be determined. OST1 also bears homology to PKABA ...
... [7]. Whether these differences reflect true species difference in kinase function, or differences in the experimental approaches used in the two studies (i.e. null versus dominant negative mutants or the use of different ABA concentrations) remains to be determined. OST1 also bears homology to PKABA ...
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... as in the controls except that cell CD stained less intensely than cell AB during the stochastic phase, and it did not stain at all during the deterministic phase (Figure 3). It has been shown previously that, while large-scale zygotic transcription is not activated until approximately 27 hr AZD in ...
... as in the controls except that cell CD stained less intensely than cell AB during the stochastic phase, and it did not stain at all during the deterministic phase (Figure 3). It has been shown previously that, while large-scale zygotic transcription is not activated until approximately 27 hr AZD in ...