Ran on tracks – cytoplasmic roles for a nuclear regulator
... In contrast to the classical nuclear transport model, this mechanism might require local production of RanGTP in axonal cytoplasm, perhaps by an as-yet-unidentified axonal RanGEF (Fig. 2) (see also below). In vivo perturbation of the system by introducing a dominant-negative Ran mutant or by adding ...
... In contrast to the classical nuclear transport model, this mechanism might require local production of RanGTP in axonal cytoplasm, perhaps by an as-yet-unidentified axonal RanGEF (Fig. 2) (see also below). In vivo perturbation of the system by introducing a dominant-negative Ran mutant or by adding ...
Biofunctionalized nanoneedles for the direct and site
... viability, transfer efficiency, general applicability, and technical requirements [33]. In this review, we discuss a new type of nanotechnologybased methodology for the introduction of biomolecules into living cells and its potential implications in addressing biological questions. 2. General descrip ...
... viability, transfer efficiency, general applicability, and technical requirements [33]. In this review, we discuss a new type of nanotechnologybased methodology for the introduction of biomolecules into living cells and its potential implications in addressing biological questions. 2. General descrip ...
Slide 1
... differentiation in an intradermal tubular apocrine component of the syringocystadenoma papilliferumThe patient reported a tumoral lesion with a history of 1 month developing in a preexisting scalp lesion that had been present from birth. The patient had no previous personal and family history of mal ...
... differentiation in an intradermal tubular apocrine component of the syringocystadenoma papilliferumThe patient reported a tumoral lesion with a history of 1 month developing in a preexisting scalp lesion that had been present from birth. The patient had no previous personal and family history of mal ...
bacteria and viruses
... the smallest cells, it is unlikely that they were the first living organisms – Because viruses are dependent upon living organisms, it seems more likely that viruses developed after living cells – The first viruses may have evolved from the genetic material of living cells • Viruses have continued t ...
... the smallest cells, it is unlikely that they were the first living organisms – Because viruses are dependent upon living organisms, it seems more likely that viruses developed after living cells – The first viruses may have evolved from the genetic material of living cells • Viruses have continued t ...
Abstract of Nushrat
... activity was investigated by measuring the scavenging activity of the DPPH (1, 1 -diphenyl-2picrylhydrazyl) radical . Evaluation for in vitro toxicological screening was done against MI)CK (Madin-Darby Kanine Kidney) cells by using an established microtiter plate assay based on cellular staining wit ...
... activity was investigated by measuring the scavenging activity of the DPPH (1, 1 -diphenyl-2picrylhydrazyl) radical . Evaluation for in vitro toxicological screening was done against MI)CK (Madin-Darby Kanine Kidney) cells by using an established microtiter plate assay based on cellular staining wit ...
The mystery of aging and rejuvenation—a budding topic
... (a) Yeast cell division — budding. Before outgrowth of a bud/daughter from the mother cell, a landmark determining where budding will take place is laid down and actin cytoskeletal patches are recruited to this site. Subsequently, actin cables are nucleated at the bud tip and bud neck and serve as t ...
... (a) Yeast cell division — budding. Before outgrowth of a bud/daughter from the mother cell, a landmark determining where budding will take place is laid down and actin cytoskeletal patches are recruited to this site. Subsequently, actin cables are nucleated at the bud tip and bud neck and serve as t ...
Diffusion_and_Osmosis
... Discussion: After the potato was in the H20, the weight of the potato increased, suggesting that osmosis was carried out. The potato is trying to create and equilibrium in the cup and potato. In turn, after the potato was in the salt solution the potato demonstrated a decrease in weight, thereby all ...
... Discussion: After the potato was in the H20, the weight of the potato increased, suggesting that osmosis was carried out. The potato is trying to create and equilibrium in the cup and potato. In turn, after the potato was in the salt solution the potato demonstrated a decrease in weight, thereby all ...
Growth of curved and helical bacterial cells
... Fig. 1 Growth of bacterial cell walls (green surface) is influenced by cytoskeletal bundles such as crescentin (red bundle). Curved bacterial cells can have two different growth modes: (I) detachment of crescentin in C. crescentus cells,14,15 or the release of curved E. coli cells from circular micr ...
... Fig. 1 Growth of bacterial cell walls (green surface) is influenced by cytoskeletal bundles such as crescentin (red bundle). Curved bacterial cells can have two different growth modes: (I) detachment of crescentin in C. crescentus cells,14,15 or the release of curved E. coli cells from circular micr ...
MEIOSIS I - AState.edu
... • For a plant or animal to grow and maintain its tissues normally, it must be able to control the timing of cell division. • The sequential events of the cell cycle are directed by a cell cycle control system that consists of specialized proteins within the cell. These proteins • integrate informati ...
... • For a plant or animal to grow and maintain its tissues normally, it must be able to control the timing of cell division. • The sequential events of the cell cycle are directed by a cell cycle control system that consists of specialized proteins within the cell. These proteins • integrate informati ...
New method for the analysis of cell cycle
... method offers a unique possibility to analyze the cell cycle position and DNA ploidy of apoptotic cells. It has been shown that loss of phospholipid asymmetry leading to exposure of phosphatidylserine on the outside of the plasma membrane is an early event of apoptosis (31,32). The principle of stan ...
... method offers a unique possibility to analyze the cell cycle position and DNA ploidy of apoptotic cells. It has been shown that loss of phospholipid asymmetry leading to exposure of phosphatidylserine on the outside of the plasma membrane is an early event of apoptosis (31,32). The principle of stan ...
Regulation of germinal center responses, memory B cells and
... persistence and functionality of early memory B cells, arising prior to GC initiation, are now confirmed [48], the relevant molecular and cellular processes remain unclear. Despite this, much has recently been learned of memory B cell biology. Considerable importance was given to the existence of Ig ...
... persistence and functionality of early memory B cells, arising prior to GC initiation, are now confirmed [48], the relevant molecular and cellular processes remain unclear. Despite this, much has recently been learned of memory B cell biology. Considerable importance was given to the existence of Ig ...
Mechanical models of gastrulation
... observed with simple vesicular systems [3]. As already mentioned, in Drosophila the blastula wall is a onecell thick epithelium but we have seen that there is also the semi-hard shell which affects the epithelial layer. A multilayer shaping of the vesicular object is thus still relevant for the fur ...
... observed with simple vesicular systems [3]. As already mentioned, in Drosophila the blastula wall is a onecell thick epithelium but we have seen that there is also the semi-hard shell which affects the epithelial layer. A multilayer shaping of the vesicular object is thus still relevant for the fur ...
Lecture 3a - Membs and Transport
... z Glycoproteins z Glycolipids z Used for cell-cell recognition z Often, doctors can tell if certain cells are normal or abnormal by their glycoproteins and glycolipids ...
... z Glycoproteins z Glycolipids z Used for cell-cell recognition z Often, doctors can tell if certain cells are normal or abnormal by their glycoproteins and glycolipids ...
Stem Cells and Types of Stem Cells
... These stem cell populations exist in their host tissues for the lifetime of an organism and are referred to as tissue-resident stem cells (also called adult or somatic stem cells). Tissue-resident stem cells are considered multipotent (multi = many, potent = able to) because they can differentiate i ...
... These stem cell populations exist in their host tissues for the lifetime of an organism and are referred to as tissue-resident stem cells (also called adult or somatic stem cells). Tissue-resident stem cells are considered multipotent (multi = many, potent = able to) because they can differentiate i ...
Summary for first examination (March 8, 2011) The first and most
... some of the sugars are in the D-form and some in the L-form. b) that peptidoglycan has a peptide portion as well. c) some bacteria use DAP and some use Lysine in their peptide chain. d) the polysaccharide contains more than one kind of sugar. 48. The cells of multicellular animals such as humans don ...
... some of the sugars are in the D-form and some in the L-form. b) that peptidoglycan has a peptide portion as well. c) some bacteria use DAP and some use Lysine in their peptide chain. d) the polysaccharide contains more than one kind of sugar. 48. The cells of multicellular animals such as humans don ...
Three-Dimensional Organization of Drosophila melanogaster
... changes could account for the finding that chromosome configurations have only limited similarities between cells of the salivary gland (28). Different cells within the same gland are known to differ in the timing of glue granule formation (8) and in steady-state levels of RNA (47). The hypothesis o ...
... changes could account for the finding that chromosome configurations have only limited similarities between cells of the salivary gland (28). Different cells within the same gland are known to differ in the timing of glue granule formation (8) and in steady-state levels of RNA (47). The hypothesis o ...
Heather is going to be talking to you about simulations of the brain
... Heather is going to be talking to you about simulations of the brain and mind. In order for you to appreciate these models, you first must know some basics about how the brain works. I’m going to tell you about how cells in the brain can communicate with one another, so then you can begin to appreci ...
... Heather is going to be talking to you about simulations of the brain and mind. In order for you to appreciate these models, you first must know some basics about how the brain works. I’m going to tell you about how cells in the brain can communicate with one another, so then you can begin to appreci ...
IB Biology Study Guide
... clone is a group of genetically identical organisms or a group genetically identical cells derived from a single parent. Two types of cloning exist: cloning by embryo splitting, an earlier procedure, and cloning by nuclear transfer, used to clone the sheep Dolly. To clone the sheep Dolly, udder cell ...
... clone is a group of genetically identical organisms or a group genetically identical cells derived from a single parent. Two types of cloning exist: cloning by embryo splitting, an earlier procedure, and cloning by nuclear transfer, used to clone the sheep Dolly. To clone the sheep Dolly, udder cell ...
Poly (?-caprolactone)-Poly (ethylene glycol) Copolymer Coatings Developed by Low Pressure Inductively Excited PECVD for Tailored Cell Adhesion
... copolymer coatings were stable after 72 hours of washing with water. SEM-FEG, XPS, XRD and AFM were also carried out on the coatings. Human ovarian carcinoma cell line (NIH:OVCAR-3) were cultured in physiological conditions and were seeded in a microplate which was loaded with autoclaved coated glas ...
... copolymer coatings were stable after 72 hours of washing with water. SEM-FEG, XPS, XRD and AFM were also carried out on the coatings. Human ovarian carcinoma cell line (NIH:OVCAR-3) were cultured in physiological conditions and were seeded in a microplate which was loaded with autoclaved coated glas ...
Calmodulin-binding protein disrupts mitosis
... In order to generate pREP6X.SL6A, the SL6A cDNA was digested with SalI and BamHI and was re-cloned into the vector pREP6X (Forsburg, 1993), which contains the sup3-5 suppressor tRNA gene and hence allows complementation of the ade6-704 mutation. The plasmid pREP4-lacZ, containing the E. coli lacZ ge ...
... In order to generate pREP6X.SL6A, the SL6A cDNA was digested with SalI and BamHI and was re-cloned into the vector pREP6X (Forsburg, 1993), which contains the sup3-5 suppressor tRNA gene and hence allows complementation of the ade6-704 mutation. The plasmid pREP4-lacZ, containing the E. coli lacZ ge ...
Mitosis
Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.