Toxoplasma gondii Intracellular Parasite Perforin Trigger Rapid
... Toxoplasma gondii is an obligate intracellular parasite of the phylum Apicomplexa. T. gondii is one of the most wide spread human parasites with an estimated 2 billion infected individuals. During the acute phase of infection, parasites rapidly disseminate to establish a life-long, often asymptomati ...
... Toxoplasma gondii is an obligate intracellular parasite of the phylum Apicomplexa. T. gondii is one of the most wide spread human parasites with an estimated 2 billion infected individuals. During the acute phase of infection, parasites rapidly disseminate to establish a life-long, often asymptomati ...
Subtype-specific regulation of equilibrative nucleoside transporters
... sites, has been identified, to date, in human cells [8]. Protein kinase CK2 is a serine/threonine protein kinase that is found in nearly all compartments of mammalian cells [11], and exists as a heterotetramer composed of two catalytic (α) subunits and two regulatory (β) subunits [12]. It appears to ...
... sites, has been identified, to date, in human cells [8]. Protein kinase CK2 is a serine/threonine protein kinase that is found in nearly all compartments of mammalian cells [11], and exists as a heterotetramer composed of two catalytic (α) subunits and two regulatory (β) subunits [12]. It appears to ...
ESCRT requirements for EIAV budding | SpringerLink
... (compare lane 3 to lanes 1 and 2), whereas TSG101 depletion actually increased virion release and infectivity modestly (lane 4, 8- and 2-fold increases, respectively). These results are consistent with previous reports that the EIAV p9Gag polypeptide contains a functional YPDL late domain that recru ...
... (compare lane 3 to lanes 1 and 2), whereas TSG101 depletion actually increased virion release and infectivity modestly (lane 4, 8- and 2-fold increases, respectively). These results are consistent with previous reports that the EIAV p9Gag polypeptide contains a functional YPDL late domain that recru ...
A Rab4-like GTPase in Dictyostelium discoideum
... (reviewed by Cardelli, 1993). Also, the organism when starved undergoes a relatively simple developmental cycle culminating in the formation of a fruiting body consisting of only a few cell types (Loomis, 1982). During development, changes occur in the expression of a number of genes encoding lysoso ...
... (reviewed by Cardelli, 1993). Also, the organism when starved undergoes a relatively simple developmental cycle culminating in the formation of a fruiting body consisting of only a few cell types (Loomis, 1982). During development, changes occur in the expression of a number of genes encoding lysoso ...
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... Section: Bacterial Cytoplasmic Membranes 5) The __________ body anchors the bacterial flagellum in the cell wall. Answer: basal Bloom's Rank: Knowledge Section: External Structures of Bacterial Cells 6) The reserve deposits of starch or other compounds found in many prokaryotic cells are called ____ ...
... Section: Bacterial Cytoplasmic Membranes 5) The __________ body anchors the bacterial flagellum in the cell wall. Answer: basal Bloom's Rank: Knowledge Section: External Structures of Bacterial Cells 6) The reserve deposits of starch or other compounds found in many prokaryotic cells are called ____ ...
SHAPE CONTROL IN THE HUMAN RED CELL
... accordance with the bilayer-couple hypothesis. A different mechanism for shape control, though still based on the bilayer-couple hypothesis, has been proposed by Seigneuret & Devaux (1984). Using spin-labelled phospholipids they observed that phosphatidylserine and phosphatidylethanolamine, but not ...
... accordance with the bilayer-couple hypothesis. A different mechanism for shape control, though still based on the bilayer-couple hypothesis, has been proposed by Seigneuret & Devaux (1984). Using spin-labelled phospholipids they observed that phosphatidylserine and phosphatidylethanolamine, but not ...
Stem Cells of the Adult Olfactory Epithelium
... a rare population in the OE is capable of producing large colonies of neurons in vitro, and may be a stem cell in the same sense as used to characterize the CNS cells that give rise to neurospheres in culture (42,43). In keeping with the terminology used to describe other self-renewing tissues (e.g. ...
... a rare population in the OE is capable of producing large colonies of neurons in vitro, and may be a stem cell in the same sense as used to characterize the CNS cells that give rise to neurospheres in culture (42,43). In keeping with the terminology used to describe other self-renewing tissues (e.g. ...
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... protrusive activity was measured from low-light recordings by counting new protrusions per unit time. A new protrusion is one forming in a new position, in a new direction, or renewed advance of a previously inactive protrusion. To describe the direction of protrusions, they were plotted as falling ...
... protrusive activity was measured from low-light recordings by counting new protrusions per unit time. A new protrusion is one forming in a new position, in a new direction, or renewed advance of a previously inactive protrusion. To describe the direction of protrusions, they were plotted as falling ...
Mechanisms of convergence and extension by cell intercalation
... These movements play major roles in gastrulation and body axis formation. During gastrulation, the forces of convergence form a hoop stress around the blastopore, which squeezes the blastopore shut in the normal anisotropic fashion, towards the ventral side of the embryo (Keller et al. 1992b). These ...
... These movements play major roles in gastrulation and body axis formation. During gastrulation, the forces of convergence form a hoop stress around the blastopore, which squeezes the blastopore shut in the normal anisotropic fashion, towards the ventral side of the embryo (Keller et al. 1992b). These ...
Multiple Exocytotic Markers Accumulate at the Sites of Perifungal
... In order to assist the reader in interpreting our images, two pictures of PPAs where the ER is labeled by GFP–HDEL (Genre et al. 2005, Genre et al. 2008) are presented in Supplementary Fig. 1. Beside being interpreted as a putative marker of exocytotic activity since it was first observed (Parniske ...
... In order to assist the reader in interpreting our images, two pictures of PPAs where the ER is labeled by GFP–HDEL (Genre et al. 2005, Genre et al. 2008) are presented in Supplementary Fig. 1. Beside being interpreted as a putative marker of exocytotic activity since it was first observed (Parniske ...
Chapter 10 Notes - Las Positas College
... Chapter 10: Skeletal Muscle Tissue To the Student Chapter 10 provides the opportunity to learn about muscle tissue. One of the four major types of body tissues, muscle tissue constitutes nearly half of the body’s mass. Because of contraction of muscle tissues, you move in countless ways, blood moves ...
... Chapter 10: Skeletal Muscle Tissue To the Student Chapter 10 provides the opportunity to learn about muscle tissue. One of the four major types of body tissues, muscle tissue constitutes nearly half of the body’s mass. Because of contraction of muscle tissues, you move in countless ways, blood moves ...
The structure of secondary cell wall polymers: how
... of biochemical and NMR data. The ManNAc-GlcNAc backbone disaccharide motif corresponds to that frequently observed in other cell wall polysaccharides, albeit with an inversion of the anomeric configuration of the D-GlcNAc residue at the reducing end (Fig. 2). It has been suggested that inversion of ...
... of biochemical and NMR data. The ManNAc-GlcNAc backbone disaccharide motif corresponds to that frequently observed in other cell wall polysaccharides, albeit with an inversion of the anomeric configuration of the D-GlcNAc residue at the reducing end (Fig. 2). It has been suggested that inversion of ...
Thesis - u
... companion cells to the sieve elements, they can also be part of large ribonucleoprotein phloem complexes. PP2s accumulate in the SE as protein bodies, partially associated to the filamentous phloem P-proteins [7]. We showed that PP2s bind to phloem sap proteins and are GlcNAc lectins [6]. In additio ...
... companion cells to the sieve elements, they can also be part of large ribonucleoprotein phloem complexes. PP2s accumulate in the SE as protein bodies, partially associated to the filamentous phloem P-proteins [7]. We showed that PP2s bind to phloem sap proteins and are GlcNAc lectins [6]. In additio ...
Mitotic Disrupter Herbicides
... Many herbicides affect the ability of a cell to enter mitosis by limiting something required for the mitotic process. For example, the inhibition of amino acid biosynthesis by sulfonylurea herbicides leads to a quick lowering of the number of cells entering mitosis (22). However, there are a number ...
... Many herbicides affect the ability of a cell to enter mitosis by limiting something required for the mitotic process. For example, the inhibition of amino acid biosynthesis by sulfonylurea herbicides leads to a quick lowering of the number of cells entering mitosis (22). However, there are a number ...
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... The application of reverse genetics to the protoplast-based cell wall regeneration system also provides an attractive approach for characterizing cell wall proteins. It is not easy, however, to establish a suspension culture cell line with specific genes knocked out. We therefore recently developed ...
... The application of reverse genetics to the protoplast-based cell wall regeneration system also provides an attractive approach for characterizing cell wall proteins. It is not easy, however, to establish a suspension culture cell line with specific genes knocked out. We therefore recently developed ...
From segment to somite: Segmentation to
... protein expression levels occur, with the peak in mRNA expression slightly preceding that of its protein product. For more details of the mathematical model, see Monk (2003). ...
... protein expression levels occur, with the peak in mRNA expression slightly preceding that of its protein product. For more details of the mathematical model, see Monk (2003). ...
The role of fibroblast growth factor in early Xenopus development
... Grunz and Tacke (1986) showed that the signals could pass through a nucleopore filter in the absense of cell processes, and Warner and Gurdon (1987) showed that the signals could pass from vegetal to animal cells even when gap junction communication had been blocked. These biological experiments gre ...
... Grunz and Tacke (1986) showed that the signals could pass through a nucleopore filter in the absense of cell processes, and Warner and Gurdon (1987) showed that the signals could pass from vegetal to animal cells even when gap junction communication had been blocked. These biological experiments gre ...
The retinal pigment epithelium: a versatile partner in vision
... place (Bernstein et al., 1987). Therefore, all-trans retinol, the product o f photoisom erization and reduction in the photore ceptor outer segment, m ust leave the photoreceptors, traverse the extracellular space between the photoreceptors and RPE and undergo reisom erization to ll- c /s retinal a ...
... place (Bernstein et al., 1987). Therefore, all-trans retinol, the product o f photoisom erization and reduction in the photore ceptor outer segment, m ust leave the photoreceptors, traverse the extracellular space between the photoreceptors and RPE and undergo reisom erization to ll- c /s retinal a ...
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 ...
Extracellular matrix
In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).