![Close-packed structure](http://s1.studyres.com/store/data/008100705_1-9459ac5a7df5ccc3b850dab7e61d0cd1-300x300.png)
Close-packed structure
... such as atoms and ions, represented as hard spheres. Close-packed structure, a structure in which there is least unfilled space. The coordination number (CN) of a sphere in a close-packed arrangement (the ‘number of nearest neighbours’) is 12, the greatest number that ...
... such as atoms and ions, represented as hard spheres. Close-packed structure, a structure in which there is least unfilled space. The coordination number (CN) of a sphere in a close-packed arrangement (the ‘number of nearest neighbours’) is 12, the greatest number that ...
Novel Potentiators Augment Efficacy of Translational
... • Primary cells: Human bronchial epithelial cells derived from lung explants carrying a nonsense alleles G542X in trans with F508del CFTR (G542X/ΔF508) were seeded on to permeable supports, grown in differentiating media for at least 6-8 weeks until terminally differentiated. Conductance (transepith ...
... • Primary cells: Human bronchial epithelial cells derived from lung explants carrying a nonsense alleles G542X in trans with F508del CFTR (G542X/ΔF508) were seeded on to permeable supports, grown in differentiating media for at least 6-8 weeks until terminally differentiated. Conductance (transepith ...
Analysis of tissue flow patterns during primitive streak formation in
... DiI-labelled small groups of cells at multiple locations in a single embryo. We allowed these embryos to develop in EC culture and followed the movement of the labelled cells by time-lapse observation over the 10– 15 h period of streak development. We collected both brightfield and fluorescence imag ...
... DiI-labelled small groups of cells at multiple locations in a single embryo. We allowed these embryos to develop in EC culture and followed the movement of the labelled cells by time-lapse observation over the 10– 15 h period of streak development. We collected both brightfield and fluorescence imag ...
Boundary formation in the hindbrain
... (Fig. 3). Selective cell mixing was also seen when cells from different rhombomeres were dissociated, mixed and then allowed to re-aggregate [20] (Fig. 3). It is an oversimplification to suggest that all odd-numbered rhombomeres share a particular adhesive property and all even-numbered rhombomeres ...
... (Fig. 3). Selective cell mixing was also seen when cells from different rhombomeres were dissociated, mixed and then allowed to re-aggregate [20] (Fig. 3). It is an oversimplification to suggest that all odd-numbered rhombomeres share a particular adhesive property and all even-numbered rhombomeres ...
A Simple 1-D Physical Model for the Crawling Nematode Sperm Cell
... Adhesion of MSP filaments to the cell membrane, and adhesion of the cell membrane to the surface seem to have an electrostatic character: Basic MSP fibers carry a net positive charge. They are attracted to the inner leaflet of the plasma membrane, which carries negatively charged lipids. The lipid m ...
... Adhesion of MSP filaments to the cell membrane, and adhesion of the cell membrane to the surface seem to have an electrostatic character: Basic MSP fibers carry a net positive charge. They are attracted to the inner leaflet of the plasma membrane, which carries negatively charged lipids. The lipid m ...
Cell Injury
... Generation of ROS • Oxidation - reduction reactions • Absorption of radiant energy • Rapid bursts of ROS produced in activated leukocytes during inflammation • Enzymatic metabolism of exogenous chemicals or drugs • Transition metals - iron and copper ...
... Generation of ROS • Oxidation - reduction reactions • Absorption of radiant energy • Rapid bursts of ROS produced in activated leukocytes during inflammation • Enzymatic metabolism of exogenous chemicals or drugs • Transition metals - iron and copper ...
Cdk1 regulates centrosome separation by restraining proteolysis of
... yet fail to assemble a spindle (Lim et al, 1996). Hence, failure to separate SPBs is specifically due to the inability to dephosphorylate Tyrosine 19. cdc28-as1 allele carries an F88G substitution that alters the ATP-binding pocket and confers sensitivity to a bulky ATP analog, 1NM-PP1 (Bishop et al, ...
... yet fail to assemble a spindle (Lim et al, 1996). Hence, failure to separate SPBs is specifically due to the inability to dephosphorylate Tyrosine 19. cdc28-as1 allele carries an F88G substitution that alters the ATP-binding pocket and confers sensitivity to a bulky ATP analog, 1NM-PP1 (Bishop et al, ...
7-2 Eukaryotic Cell Structure
... proteins into small molecules that can be used by the rest of the cell. Lysosomes also break down organelles that have outlived their usefulness. Slide 26 of 49 Copyright Pearson Prentice Hall ...
... proteins into small molecules that can be used by the rest of the cell. Lysosomes also break down organelles that have outlived their usefulness. Slide 26 of 49 Copyright Pearson Prentice Hall ...
lncreased Expression of Vacuolar Aquaporin and H+
... permeability of the lipid bilayer is more than sufficient for required fluxes. However, some specialized plant cells, such as stomata cells, the motor cells of the pulvini of Mimosa pudica, or of the stamens of Mahonia spp. change their volume very rapidly using water exchange with surrounding cells ...
... permeability of the lipid bilayer is more than sufficient for required fluxes. However, some specialized plant cells, such as stomata cells, the motor cells of the pulvini of Mimosa pudica, or of the stamens of Mahonia spp. change their volume very rapidly using water exchange with surrounding cells ...
Fluid-Phase Endocytosis in Plant Cells
... Baluška et al. (2002) revealed for the first time that FPE is intimately involved in physiological processes other than membrane recycling. Working with meristematic maize root cells, Baluška and Co-workers (2002) observed JIM5 reactive pectins accumulating in intracellular compartments and within c ...
... Baluška et al. (2002) revealed for the first time that FPE is intimately involved in physiological processes other than membrane recycling. Working with meristematic maize root cells, Baluška and Co-workers (2002) observed JIM5 reactive pectins accumulating in intracellular compartments and within c ...
Mammalian Cdc7–Dbf4 protein kinase complex is essential for
... Eukaryotic chromosomal replication is a tightly regulated process, which must be strictly coordinated with other cell-cycle events, such as cell division, to ensure that the daughter cells maintain the same ploidy as the parental cell. Replication of each segment of DNA occurs once and once only dur ...
... Eukaryotic chromosomal replication is a tightly regulated process, which must be strictly coordinated with other cell-cycle events, such as cell division, to ensure that the daughter cells maintain the same ploidy as the parental cell. Replication of each segment of DNA occurs once and once only dur ...
Comparison of Flow Cytometry, Fluorescence Microscopy and
... intensity and enables fast analysis of a large number of cells. The flow cytometer uses a computer-assisted discrimination of non-transfected and transfected cells by manual gating of fluorescence signal providing two information: emission histogram for each single cell and number of fluorescent cel ...
... intensity and enables fast analysis of a large number of cells. The flow cytometer uses a computer-assisted discrimination of non-transfected and transfected cells by manual gating of fluorescence signal providing two information: emission histogram for each single cell and number of fluorescent cel ...
7-2 Eukaryotic Cell Structure
... proteins into small molecules that can be used by the rest of the cell. Lysosomes also break down organelles that have outlived their usefulness. Slide 26 of 49 Copyright Pearson Prentice Hall ...
... proteins into small molecules that can be used by the rest of the cell. Lysosomes also break down organelles that have outlived their usefulness. Slide 26 of 49 Copyright Pearson Prentice Hall ...
Checkpoint Responses in Cancer Therapy
... is to enhance our understanding of the many cell-cycle checkpoint molecules that have already been identified as effective targets for anticancer drug development, and to explore the possibility of developing a new generation of anticancer drugs with improved therapeutic indices based on their abili ...
... is to enhance our understanding of the many cell-cycle checkpoint molecules that have already been identified as effective targets for anticancer drug development, and to explore the possibility of developing a new generation of anticancer drugs with improved therapeutic indices based on their abili ...
7-2 Eukaryotic Cell Structure
... proteins into small molecules that can be used by the rest of the cell. Lysosomes also break down organelles that have outlived their usefulness. Slide 26 of 49 Copyright Pearson Prentice Hall ...
... proteins into small molecules that can be used by the rest of the cell. Lysosomes also break down organelles that have outlived their usefulness. Slide 26 of 49 Copyright Pearson Prentice Hall ...
Differentially Expressed Fibroblast Growth Factors Regulate Skeletal
... with PBS and stained for 13-galactosidase (1 mg per ml 5-bromo-4-chloro3-indolyl-13-D-galacto pyranoside, 5 mM potassium ferricyanide, 5 mM potassium ferrocyanide and 2 mM MgC12 in PBS at 37°C for 16 h). The number of 13-galactosidase positive nuclei that fused into multinucleated (three or more nuc ...
... with PBS and stained for 13-galactosidase (1 mg per ml 5-bromo-4-chloro3-indolyl-13-D-galacto pyranoside, 5 mM potassium ferricyanide, 5 mM potassium ferrocyanide and 2 mM MgC12 in PBS at 37°C for 16 h). The number of 13-galactosidase positive nuclei that fused into multinucleated (three or more nuc ...
Opposite Effects of Tor1 and Tor2 on Nitrogen Starvation
... Department of Molecular Microbiology and Biotechnology, Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel Manuscript received July 31, 2006 Accepted for publication December 7, 2006 ABSTRACT The TOR protein kinases exhibit a conserved role in regulating cellular growth and prolif ...
... Department of Molecular Microbiology and Biotechnology, Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel Manuscript received July 31, 2006 Accepted for publication December 7, 2006 ABSTRACT The TOR protein kinases exhibit a conserved role in regulating cellular growth and prolif ...
EspF review - Newcastle University Staff Publishing Service
... cell. Taken together, the primary function of mitochondrial targeting and dysfunction by EspF may be a regulatory one with EspF-induced apoptosis, at least in EPEC-infected cells, possibly an undesirable in vitro observed outcome. NUCLEOLUS: A NEW TARGET FOR BACTERIAL EFFECTORS The nucleolus is a no ...
... cell. Taken together, the primary function of mitochondrial targeting and dysfunction by EspF may be a regulatory one with EspF-induced apoptosis, at least in EPEC-infected cells, possibly an undesirable in vitro observed outcome. NUCLEOLUS: A NEW TARGET FOR BACTERIAL EFFECTORS The nucleolus is a no ...
Primary Culture of Identified Neurons from the Visual Cortex of
... (B) and glial fibrillary acidic protein-like (C) immunoreactivity. A, Phasecontrast photomicrograph of cells from a 7-d-old animal in vitro for 26 d. B, Same field stained for neurofilament-like immunoreactivity, FITClabeled second antibody. C, Same field as A and B stained for glial fibrillary acid ...
... (B) and glial fibrillary acidic protein-like (C) immunoreactivity. A, Phasecontrast photomicrograph of cells from a 7-d-old animal in vitro for 26 d. B, Same field stained for neurofilament-like immunoreactivity, FITClabeled second antibody. C, Same field as A and B stained for glial fibrillary acid ...
Biodiversity
... 4. binary fission: type of asexual reproduction in which an organism replicates its DNA and divides in half, producing two identical daughter cells. 5. capsid: protein coat surrounding a virus. 6. coccus: spherical prokaryote. 7. conjugation: process in which paramecia and some prokaryotes exchange ...
... 4. binary fission: type of asexual reproduction in which an organism replicates its DNA and divides in half, producing two identical daughter cells. 5. capsid: protein coat surrounding a virus. 6. coccus: spherical prokaryote. 7. conjugation: process in which paramecia and some prokaryotes exchange ...
Cleavage Furrow Establishment—A Preliminary to Cylindrical
... similar fashion, as newt kidney cells continue to divide while the mitotic apparatus and associated cytoplasm are pushed back and forth through the equatorial plane (Rappaport and Rappaport, 1968). These experiments, and others, performed on cleaving cells indicate that the furrowing process in anim ...
... similar fashion, as newt kidney cells continue to divide while the mitotic apparatus and associated cytoplasm are pushed back and forth through the equatorial plane (Rappaport and Rappaport, 1968). These experiments, and others, performed on cleaving cells indicate that the furrowing process in anim ...
Turgor Pressure
... osmotic pressure. A number of factors can reduce turgor pressure below what is predicted by its osmotic pressure. These include the presence of solutes in the cell wall; some plants are able to regulate the amount of these to control turgor pressure. Turgor pressure is also reduced by transpiration, ...
... osmotic pressure. A number of factors can reduce turgor pressure below what is predicted by its osmotic pressure. These include the presence of solutes in the cell wall; some plants are able to regulate the amount of these to control turgor pressure. Turgor pressure is also reduced by transpiration, ...
Herpesvirus Glycoproteins Undergo Multiple Antigenic Changes
... endosomes they must at least in part be post-fusion. Between cell binding and capsid release MuHV-4 virions lose gH/gL epitopes, while gB switches from BN-1A7+MG-1A12- to BN-1A7-MG1A12+. To define better the relationship between these antigenic switches, we undertook a kinetic analysis of virion ent ...
... endosomes they must at least in part be post-fusion. Between cell binding and capsid release MuHV-4 virions lose gH/gL epitopes, while gB switches from BN-1A7+MG-1A12- to BN-1A7-MG1A12+. To define better the relationship between these antigenic switches, we undertook a kinetic analysis of virion ent ...
Molecular sieving properties of the cytoplasm of Escherichia coli and
... (Fig. 2B). These areas of the cytoplasm had a lower concentration of GFP, which co-localized with a region stained with the DNA-binding fluorophore Draq-5. In contrast to the non-stressed cells, GFP seemed partially excluded from the regions stained by Draq-5 (Fig. 2B, compare subpanels 1–3 vs. 5–7) ...
... (Fig. 2B). These areas of the cytoplasm had a lower concentration of GFP, which co-localized with a region stained with the DNA-binding fluorophore Draq-5. In contrast to the non-stressed cells, GFP seemed partially excluded from the regions stained by Draq-5 (Fig. 2B, compare subpanels 1–3 vs. 5–7) ...
Cell culture
![](https://commons.wikimedia.org/wiki/Special:FilePath/Cell_Culture_in_a_tiny_Petri_dish.jpg?width=300)
Cell culture is the process by which cells are grown under controlled conditions, generally outside of their natural environment. In practice, the term ""cell culture"" now refers to the culturing of cells derived from multicellular eukaryotes, especially animal cells, in contrast with other types of culture that also grow cells, such as plant tissue culture, fungal culture, and microbiological culture (of microbes). The historical development and methods of cell culture are closely interrelated to those of tissue culture and organ culture. Viral culture is also related, with cells as hosts for the viruses. The laboratory technique of maintaining live cell lines (a population of cells descended from a single cell and containing the same genetic makeup) separated from their original tissue source became more robust in the middle 20th century.