Maternal Torso-Like Coordinates Tissue Folding During
... compare panels G and H with I; Costa et al. 1994). By contrast, in tslΔ embryos an additional large field of cells posterior to the pole cells was observed (Fig. 2I). We reasoned that these cells might be mesodermal tissue remaining at the embryo surface as a consequence of invagination failure. To ...
... compare panels G and H with I; Costa et al. 1994). By contrast, in tslΔ embryos an additional large field of cells posterior to the pole cells was observed (Fig. 2I). We reasoned that these cells might be mesodermal tissue remaining at the embryo surface as a consequence of invagination failure. To ...
Enzymes for Cell Dissociation and Lysis - Sigma
... histolyticum, or are recombinant versions where E. coli expresses a gene cloned from C. histolyticum. We provide a lot reservation service. You may purchase small quantities from one or more lots and reserve larger quantities until your evaluation is complete. The different collagenase products in t ...
... histolyticum, or are recombinant versions where E. coli expresses a gene cloned from C. histolyticum. We provide a lot reservation service. You may purchase small quantities from one or more lots and reserve larger quantities until your evaluation is complete. The different collagenase products in t ...
Increased Susceptibility of the Sickle Cell Membrane
... are subject to many changes due to the polymerization of hemoglobin S . Some of the membrane changes include: altered ion transport, altered cytoskeletal structure, phosphatidylserine transmembrane movement, and reduced enzyme function.‘ These changes appear to be associated with the formation of de ...
... are subject to many changes due to the polymerization of hemoglobin S . Some of the membrane changes include: altered ion transport, altered cytoskeletal structure, phosphatidylserine transmembrane movement, and reduced enzyme function.‘ These changes appear to be associated with the formation of de ...
Isolation of AtSUC2 promoter-GFP
... laser microdissection and pressure catapulting (LMPC) technique to the vascular-rich ¯ower stalk of Arabidopsis. Following the excision of about 150 individual phloem sectors (Figure 1a), mRNA was isolated and probed for the presence of transcripts for a phloem K channel, sucrose carrier and H pum ...
... laser microdissection and pressure catapulting (LMPC) technique to the vascular-rich ¯ower stalk of Arabidopsis. Following the excision of about 150 individual phloem sectors (Figure 1a), mRNA was isolated and probed for the presence of transcripts for a phloem K channel, sucrose carrier and H pum ...
An inductive interaction in 4-cell stage C. elegans embryos involves
... We examined the distribution of apx-1 RNA in embryos by in situ hybridization. apx-1 RNA is detected in newly fertilized eggs, consistent with previous genetic results demonstrating that apx-1 must be expressed maternally. Between the 1-cell and 8-cell stages, apx-1 RNA is present in all blastomeres ...
... We examined the distribution of apx-1 RNA in embryos by in situ hybridization. apx-1 RNA is detected in newly fertilized eggs, consistent with previous genetic results demonstrating that apx-1 must be expressed maternally. Between the 1-cell and 8-cell stages, apx-1 RNA is present in all blastomeres ...
Regulation of phospholipase D activity, membrane targeting and
... in a manner that could be protected by an excess of PtdIns(4,5)P2 but not by other phosphoinositides or other acidic lipids that do not activate the enzyme [16]. Taken together, these results strongly suggested that a binding interaction between the PLD enzymes and PtdIns(4,5)P2 is important for sti ...
... in a manner that could be protected by an excess of PtdIns(4,5)P2 but not by other phosphoinositides or other acidic lipids that do not activate the enzyme [16]. Taken together, these results strongly suggested that a binding interaction between the PLD enzymes and PtdIns(4,5)P2 is important for sti ...
A mutant Escherichia coli that attaches peptidoglycan to
... M-LPS (Figure 2B). Notably, the decrease in LPS* correlated with a significant reduction in vancomycin-resistance, providing evidence that LPS* molecules directly mediate the resistance (Figure 2C). Similarly, if O-antigen biosynthesis is restored by introducing a wild-type wbbL gene, we observe low ...
... M-LPS (Figure 2B). Notably, the decrease in LPS* correlated with a significant reduction in vancomycin-resistance, providing evidence that LPS* molecules directly mediate the resistance (Figure 2C). Similarly, if O-antigen biosynthesis is restored by introducing a wild-type wbbL gene, we observe low ...
Phagosome maturation in unicellular eukaryote Paramecium: the
... pathway to ingest bacteria and other food particles. Digestion process starts up upon fusion of phagosomes (i.e. digestive vacuoles at stage II; DV-II) with the primary lysosomes (Allen and Fok 2000) on which we focused our analysis looking for molecular machinery involved in phagolysosome formation ...
... pathway to ingest bacteria and other food particles. Digestion process starts up upon fusion of phagosomes (i.e. digestive vacuoles at stage II; DV-II) with the primary lysosomes (Allen and Fok 2000) on which we focused our analysis looking for molecular machinery involved in phagolysosome formation ...
Seasonal Changes of Plasma Membrane H
... higher plants (Serrano, 1989; Palmgren, 2001). The enzyme generates the proton-motive force that drives the uptake of nutrients such as sugars and ions across the plasma membrane of growing plant cells. Especially the uptake of potassium ions through specific transport proteins has been related to t ...
... higher plants (Serrano, 1989; Palmgren, 2001). The enzyme generates the proton-motive force that drives the uptake of nutrients such as sugars and ions across the plasma membrane of growing plant cells. Especially the uptake of potassium ions through specific transport proteins has been related to t ...
Comparative analysis of amphibian somite
... With recent advances in preparative techniques for scanning electron microscopy, it is now possible to observe the details of cellular morphology, arrangements, and contacts during the process of somite formation in various vertebrate embryos. In the chick embryo, for example, the surface mesoderm w ...
... With recent advances in preparative techniques for scanning electron microscopy, it is now possible to observe the details of cellular morphology, arrangements, and contacts during the process of somite formation in various vertebrate embryos. In the chick embryo, for example, the surface mesoderm w ...
Cardiac optogenetics - Biomedical Engineering
... microbial opsins, all of which use retinal as a chromophore (light-sensing element). Unlike BR, ChR2 is a classical ion channel (not an active pump) and upon opening it conducts cations along the electrochemical gradient. The chromophore, all-trans-retinal, is covalently bound to the ion channel, an ...
... microbial opsins, all of which use retinal as a chromophore (light-sensing element). Unlike BR, ChR2 is a classical ion channel (not an active pump) and upon opening it conducts cations along the electrochemical gradient. The chromophore, all-trans-retinal, is covalently bound to the ion channel, an ...
electrophysiological investigations of the heart of squill a mantis
... The number of impulses in the burst fired by the g.n.t. was related to the interval between the bursts. In any one heart the number was fairly constant over a short time (several minutes) but over a longer period the heart slowed and the number of impulses per burst increased. Fig. 6 illustrates thi ...
... The number of impulses in the burst fired by the g.n.t. was related to the interval between the bursts. In any one heart the number was fairly constant over a short time (several minutes) but over a longer period the heart slowed and the number of impulses per burst increased. Fig. 6 illustrates thi ...
Structural basis of ubiquitylation Andrew P VanDemark and
... terminus to substrate lysine residues, a process known as ubiquitylation, targets the substrate for a range of possible fates, the best known of which is degradation by the 26S proteasome, but which also include endocytosis, targeting to lysosomes, and modification of protein function [1]. These res ...
... terminus to substrate lysine residues, a process known as ubiquitylation, targets the substrate for a range of possible fates, the best known of which is degradation by the 26S proteasome, but which also include endocytosis, targeting to lysosomes, and modification of protein function [1]. These res ...
Dynamic Localization of Rop GTPases to the
... chambers are bigger than the others (Fig. 1G). Certain chambers remain connected to neighboring chambers. The fluorescence is not evenly distributed throughout the endomembrane system. Certain regions are much brighter than others. In most cases, small spheres or tubules have strong fluorescence, wh ...
... chambers are bigger than the others (Fig. 1G). Certain chambers remain connected to neighboring chambers. The fluorescence is not evenly distributed throughout the endomembrane system. Certain regions are much brighter than others. In most cases, small spheres or tubules have strong fluorescence, wh ...
Sequence elements of the fusion peptide of human respiratory
... the activity of other viral glycoproteins, at least in viruses with F as the only surface glycoprotein or in transfected cells expressing only F. The HRSV F protein is a type I glycoprotein that is synthesized as an inactive precursor (F0) of 574 amino acids. This precursor is cleaved by furin-like ...
... the activity of other viral glycoproteins, at least in viruses with F as the only surface glycoprotein or in transfected cells expressing only F. The HRSV F protein is a type I glycoprotein that is synthesized as an inactive precursor (F0) of 574 amino acids. This precursor is cleaved by furin-like ...
Tropomyosin 1: Multiple roles in the developing heart and in the
... Tropomyosin regulates contraction of the sarcomere, through direct interaction with actin and troponin T [17]. In the presence of elevated levels of intracellular calcium (Ca2+), Ca2+ binds to troponin C of the troponin complex inducing conformational changes that moves tropomyosin across the actin ...
... Tropomyosin regulates contraction of the sarcomere, through direct interaction with actin and troponin T [17]. In the presence of elevated levels of intracellular calcium (Ca2+), Ca2+ binds to troponin C of the troponin complex inducing conformational changes that moves tropomyosin across the actin ...
Nature Cell Biol. 6
... the epitope-tagged FKBP12 was functional for rapamycin and mTOR binding. In contrast, FKBP12 failed to co-precipitate mAVO3 from either rapamycin-treated or rapamycin-untreated cells. The failure of FKBP12 to co-precipitate mAVO3 was not because of a rapamycin-induced dissociation of mAVO3 from mTOR ...
... the epitope-tagged FKBP12 was functional for rapamycin and mTOR binding. In contrast, FKBP12 failed to co-precipitate mAVO3 from either rapamycin-treated or rapamycin-untreated cells. The failure of FKBP12 to co-precipitate mAVO3 was not because of a rapamycin-induced dissociation of mAVO3 from mTOR ...
PP Chapter 15 Text
... number of cell divisions, not a specific length of time. • Telomeres, lengths of DNA at the ends of chromosomes, get shorter with every cell division. • Eventually, the cell can no longer divide without losing critical genetic information. Copyright © 2007 Pearson Education, Inc., publishing as Pear ...
... number of cell divisions, not a specific length of time. • Telomeres, lengths of DNA at the ends of chromosomes, get shorter with every cell division. • Eventually, the cell can no longer divide without losing critical genetic information. Copyright © 2007 Pearson Education, Inc., publishing as Pear ...
Modeling the Mechanics of Cell Division: Influence of
... Cellular membrane constriction is one of these processes, observed almost universally during cell division. It happens similarly in all organisms through a mechanical pathway synchronized with the sequence of cytokinetic events in the cell interior. Arguably, such a mechanical process is mastered by ...
... Cellular membrane constriction is one of these processes, observed almost universally during cell division. It happens similarly in all organisms through a mechanical pathway synchronized with the sequence of cytokinetic events in the cell interior. Arguably, such a mechanical process is mastered by ...
Electrocardioqraphic criteria for predicting the site of coronary artery
... Pheromone-inducible plasmid transfer is an important mechanism for dissemination of antibiotic resistance and virulence factors in these organisms. Plasmid-free strains of Enterococcus faecalis secrete at least half a dozen peptide sex pheromone-probably many more-that induce a mating response by po ...
... Pheromone-inducible plasmid transfer is an important mechanism for dissemination of antibiotic resistance and virulence factors in these organisms. Plasmid-free strains of Enterococcus faecalis secrete at least half a dozen peptide sex pheromone-probably many more-that induce a mating response by po ...
Glycogen, Amylase and tx-Glucosidase as Possible Components in
... TVo^toc filaments (20-50 g wet weight) were washed once with 0.75 M potassium phosphate buffer p H 7.0, resuspended with the help of a glass potter in fresh phosphate buffer at a density of 0.5 g wet weight/ml and were passed twice through a French press. The homogenate was centrifuged at 48,000 g f ...
... TVo^toc filaments (20-50 g wet weight) were washed once with 0.75 M potassium phosphate buffer p H 7.0, resuspended with the help of a glass potter in fresh phosphate buffer at a density of 0.5 g wet weight/ml and were passed twice through a French press. The homogenate was centrifuged at 48,000 g f ...
Malpighian tubules and formation of uric acid
... the charge. These ions move across the cytoplasm of the cell, the so-called transcellular pathway. Note the potassium-chloride and sodium-chloride symporters, the proton-potassium and proton-sodium antiporters and the ion channels. The flux of ions across the epithelial cell also draws across water, ...
... the charge. These ions move across the cytoplasm of the cell, the so-called transcellular pathway. Note the potassium-chloride and sodium-chloride symporters, the proton-potassium and proton-sodium antiporters and the ion channels. The flux of ions across the epithelial cell also draws across water, ...
Biology I Framework Competencies
... c. Examine and evaluate the significance of natural events and human activities on major ecosystems (e.g., succession, population growth, technology, loss of genetic diversity, consumption of resources). (DOK 2) 4. Analyze and explain the structures and function of the levels of biological organiza ...
... c. Examine and evaluate the significance of natural events and human activities on major ecosystems (e.g., succession, population growth, technology, loss of genetic diversity, consumption of resources). (DOK 2) 4. Analyze and explain the structures and function of the levels of biological organiza ...
BIOLOGY I - one credit - COMPETENCIES AND OBJECTIVES
... 3. Investigate and evaluate the interaction between living organisms and their environment. a. Compare and contrast the characteristics of the world’s major biomes (e.g., deserts, tundra, taiga, grassland, temperate forest, tropical rainforest). (DOK 2) Plant and animal species Climate (temperat ...
... 3. Investigate and evaluate the interaction between living organisms and their environment. a. Compare and contrast the characteristics of the world’s major biomes (e.g., deserts, tundra, taiga, grassland, temperate forest, tropical rainforest). (DOK 2) Plant and animal species Climate (temperat ...
About 100 cases of small cell carcinoma
... • Another, less common, histologic variant is hyperplastic (type II) dysplasia.[34] • Finally, the exceedingly rare tubule neck (or globoid) dysplasia is believed to be a precursor of diffuse-type gastric ...
... • Another, less common, histologic variant is hyperplastic (type II) dysplasia.[34] • Finally, the exceedingly rare tubule neck (or globoid) dysplasia is believed to be a precursor of diffuse-type gastric ...
Cytokinesis
Cytokinesis (cyto- + kinesis) is the process during cell division in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. It usually initiates during the early stages of mitosis, and sometimes meiosis, splitting a mitotic cell in two, to ensure that chromosome number is maintained from one generation to the next. After cytokinesis two (daughter) cells will be formed that are exact copies of the (parent) original cell. After cytokinesis, each daughter cell is in the interphase portion of the cell cycle. In animal cells, one notable exception to the normal process of cytokinesis is oogenesis (the creation of an ovum in the ovarian follicle of the ovary), where the ovum takes almost all the cytoplasm and organelles, leaving very little for the resulting polar bodies, which then die. Another form of mitosis without cytokinesis occurs in the liver, yielding multinucleate cells. In plant cells, a dividing structure known as the cell plate forms within the centre of the cytoplasm and a new cell wall forms between the two daughter cells.Cytokinesis is distinguished from the prokaryotic process of binary fission.