Endocrine System
... Steroid hormones are made of cholesterol, a type of lipid. Steroid hormones enter the cell by diffusing through the cell membrane. They are able to enter this way since they are made of cholesterol. ...
... Steroid hormones are made of cholesterol, a type of lipid. Steroid hormones enter the cell by diffusing through the cell membrane. They are able to enter this way since they are made of cholesterol. ...
Oxidation of Hg(0) - Department of Marine and Coastal Sciences
... frequently physically confined and gas exchange with surroundings is limited. Thus, Hg(0) can potentially interact with metabolically diverse microorganisms including nitrate-reducing, iron-reducing and fermentative bacteria. Because many anaerobes lack catalase enzymes, the mechanism of Hg(0) oxidat ...
... frequently physically confined and gas exchange with surroundings is limited. Thus, Hg(0) can potentially interact with metabolically diverse microorganisms including nitrate-reducing, iron-reducing and fermentative bacteria. Because many anaerobes lack catalase enzymes, the mechanism of Hg(0) oxidat ...
Control of Mitotic Events by Nap1 and the Gin4 Kinase
... Immunoaffinity beads for the precipitation of Gin4 are made by crosslinking anti-Gin4 antibody to protein A beads as previously described, using 1 mg of affinity-purified antibody for each microliter of protein A beads (Kellogg et al., 1995b). 1.5-liter cultures of strains DK186 and RA4 are grown to ...
... Immunoaffinity beads for the precipitation of Gin4 are made by crosslinking anti-Gin4 antibody to protein A beads as previously described, using 1 mg of affinity-purified antibody for each microliter of protein A beads (Kellogg et al., 1995b). 1.5-liter cultures of strains DK186 and RA4 are grown to ...
The Role of the Leukemia Inhibitory Factor (LIF)
... of transcription factors like OCT3/4 [36,37] and Nanog [38,39]. Furthermore, ESCs express elevated levels of alkaline phosphatase and have high telomerase activity [40]. It is a combinatorial activity of different signaling pathways that orchestrates the maintenance of ESCs in a pluripotent state. F ...
... of transcription factors like OCT3/4 [36,37] and Nanog [38,39]. Furthermore, ESCs express elevated levels of alkaline phosphatase and have high telomerase activity [40]. It is a combinatorial activity of different signaling pathways that orchestrates the maintenance of ESCs in a pluripotent state. F ...
Biological and Biochemical Foundations of Living Systems
... sequence information between biopolymers in living organisms. By storing and transferring biological information, DNA and RNA enable living organisms to reproduce their complex components from one generation to the next. The nucleotide monomers of these biopolymers, being joined by phosphodiester li ...
... sequence information between biopolymers in living organisms. By storing and transferring biological information, DNA and RNA enable living organisms to reproduce their complex components from one generation to the next. The nucleotide monomers of these biopolymers, being joined by phosphodiester li ...
the process of selection of erythromycin
... the cell being referred to, in the text and on figures, by a number (14a, 14b, . . .). Light arrows indicate that a cell has been removed and placed back in normal medium to study the extent of its genetic purification. ...
... the cell being referred to, in the text and on figures, by a number (14a, 14b, . . .). Light arrows indicate that a cell has been removed and placed back in normal medium to study the extent of its genetic purification. ...
Cellular Computing
... Implement the nonlinearity by dimerization of proteins and with cooperative binding at DNA binding sites ...
... Implement the nonlinearity by dimerization of proteins and with cooperative binding at DNA binding sites ...
Required Early Complement Activation in Contact
... added due to their inhibitory effect on chemotaxis. 50 ml of J774A.1 cells was added to the upper wells, allowing cells to migrate through a polyvinylpyrrolidone-free polycarbonate filter with 5 mm pores at 378C for 4 h in a humidified air atmosphere, containing 5% CO2. The J774A.1 cells attached fi ...
... added due to their inhibitory effect on chemotaxis. 50 ml of J774A.1 cells was added to the upper wells, allowing cells to migrate through a polyvinylpyrrolidone-free polycarbonate filter with 5 mm pores at 378C for 4 h in a humidified air atmosphere, containing 5% CO2. The J774A.1 cells attached fi ...
In Search of Mitochondrial Mechanisms: Interfield
... and had succeeded in localizing respiration as an intracellular process.6 However, there was disagreement about the extent to which such processes could be understood in terms of ordinary chemical reactions stimulated by catalysts. Many scientists took the issue as settled when Eduard Buchner announ ...
... and had succeeded in localizing respiration as an intracellular process.6 However, there was disagreement about the extent to which such processes could be understood in terms of ordinary chemical reactions stimulated by catalysts. Many scientists took the issue as settled when Eduard Buchner announ ...
Listeria In Vivo Dynamic Imaging of the Effector Immune Response to Infection
... sections from CD11c-EYFP mice show that YFP+ cells are present in the RP and these cells are heterogeneous for surface staining of CD11c, MHC class II, F4/80 and CD11b (Figure S1 in Text S1). In the subcapsular RP, YFP+ cells stained strongly for F4/80, a marker for RP macrophages but also expressed ...
... sections from CD11c-EYFP mice show that YFP+ cells are present in the RP and these cells are heterogeneous for surface staining of CD11c, MHC class II, F4/80 and CD11b (Figure S1 in Text S1). In the subcapsular RP, YFP+ cells stained strongly for F4/80, a marker for RP macrophages but also expressed ...
Guidelines for Building Self-Organizing Maps
... • Based on unsupervised learning • Classification and Data Reduction (Dimensionality) • GIScience, Data Mining, Biology, Computer Science, ... ...
... • Based on unsupervised learning • Classification and Data Reduction (Dimensionality) • GIScience, Data Mining, Biology, Computer Science, ... ...
Towards a unifying model for the metaphase
... coordinate coupling between the sequence of events, ensuring dependence of the initiation of each upon successful completion of others. This paper will mainly focus upon the possible checkpoint which controls a brief but essential step, dissociation of the sister chromatids into two identical chromo ...
... coordinate coupling between the sequence of events, ensuring dependence of the initiation of each upon successful completion of others. This paper will mainly focus upon the possible checkpoint which controls a brief but essential step, dissociation of the sister chromatids into two identical chromo ...
Cytokinesis in Tobacco BY-2 and Root Tip Cells: A New Model of
... cell wall between daughter cells. This process is accomplished by the formation of the phragmoplast that not only builds the new plate but spatially orients it within the cell relative to the whole plant or organ axis. The phragmoplast of higher plant cells has been described as consisting of three ...
... cell wall between daughter cells. This process is accomplished by the formation of the phragmoplast that not only builds the new plate but spatially orients it within the cell relative to the whole plant or organ axis. The phragmoplast of higher plant cells has been described as consisting of three ...
An FGF4-FRS2[alpha]-Cdx2 Axis in Trophoblast Stem Cells Induces
... Shp2-binding sites in FRS2a have a primary role in the activation of ERK whereas the Grb2-binding sites have a primary role in the activation of PI-3 kinases and a secondary role in the activation of ERK [16]. Frs2a begins to be expressed in the early stages of development. Compared with its weak ex ...
... Shp2-binding sites in FRS2a have a primary role in the activation of ERK whereas the Grb2-binding sites have a primary role in the activation of PI-3 kinases and a secondary role in the activation of ERK [16]. Frs2a begins to be expressed in the early stages of development. Compared with its weak ex ...
Membrane Transport
... • Exocytosis - Movement out of cell Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings ...
... • Exocytosis - Movement out of cell Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings ...
Cell shape changes indicate a role for extrinsic tensile forces in
... along the AP axis in the ectoderm of wild-type and AP-patterning mutant embryos (Fig. 2e–f´´). Cell intercalation rates were mostly uniform along this axis in wild-type embryos (Fig. 2e). In kni hb embryos, which lack AP patterning in the trunk, cell intercalation was abolished throughout the field ...
... along the AP axis in the ectoderm of wild-type and AP-patterning mutant embryos (Fig. 2e–f´´). Cell intercalation rates were mostly uniform along this axis in wild-type embryos (Fig. 2e). In kni hb embryos, which lack AP patterning in the trunk, cell intercalation was abolished throughout the field ...
growth regulators
... isolation of an active auxin occurred in 1931 by two Dutch biochemists. They isolated a compound called "auxin A" from 33 gallons of human urine. The first generally accepted report of IAA in a higher plant was published by A.J. Haagen-Smit and coworkers in 1946. The discovery of 2,4-D, and related ...
... isolation of an active auxin occurred in 1931 by two Dutch biochemists. They isolated a compound called "auxin A" from 33 gallons of human urine. The first generally accepted report of IAA in a higher plant was published by A.J. Haagen-Smit and coworkers in 1946. The discovery of 2,4-D, and related ...
Suppression by Filarial Parasites Not IL
... profound proliferative suppression was still observed. This demonstrated that suppression was an active process and not due to an absence of costimulatory molecules or reduced numbers of effective APC. Moreover, while suppression could be transferred with supernatants from cultured PEC, this was not ...
... profound proliferative suppression was still observed. This demonstrated that suppression was an active process and not due to an absence of costimulatory molecules or reduced numbers of effective APC. Moreover, while suppression could be transferred with supernatants from cultured PEC, this was not ...
Redistribution and differential extraction of soluble proteins in
... Assuming that the primary and secondary antibodies are completely specific and that they faithfully display the distribution of the antigen of interest after fixation/ extraction, there may be two important interrelated sources of error in localizing soluble or partially soluble proteins. First, per ...
... Assuming that the primary and secondary antibodies are completely specific and that they faithfully display the distribution of the antigen of interest after fixation/ extraction, there may be two important interrelated sources of error in localizing soluble or partially soluble proteins. First, per ...
Embryonic stem cells assume a primitive neural stem cell fate in the
... instructive or inhibitory signals and what cellular configuration/ fate will result. The standard methodology for the in vitro differentiation of ES cells typically involves the formation of embryoid bodies (EBs; Desbaillets et al., 2000), which are formed by aggregation of ES cells in the presence ...
... instructive or inhibitory signals and what cellular configuration/ fate will result. The standard methodology for the in vitro differentiation of ES cells typically involves the formation of embryoid bodies (EBs; Desbaillets et al., 2000), which are formed by aggregation of ES cells in the presence ...
Tissues # 2 - Nutley Public Schools
... Reticular Connective Tissue • Resembles areolar but fibers are reticular fibers • Fibroblasts called reticular cells • Supports free blood cells in lymph nodes, the spleen, and bone marrow ...
... Reticular Connective Tissue • Resembles areolar but fibers are reticular fibers • Fibroblasts called reticular cells • Supports free blood cells in lymph nodes, the spleen, and bone marrow ...
Cell culture
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.