The Bacterial Nucleoid
... This article deals with some aspects of the structure of the nucleoid in Escherichia coli. It is based on a contribution to the symposium on ‘Relations between Structure and Function in the Prokaryotic Cell’ at the Annual Meeting of the Society for General Microbiology in April 1978, but was not pub ...
... This article deals with some aspects of the structure of the nucleoid in Escherichia coli. It is based on a contribution to the symposium on ‘Relations between Structure and Function in the Prokaryotic Cell’ at the Annual Meeting of the Society for General Microbiology in April 1978, but was not pub ...
Learn More - Montgomery County Community College
... biogeography, fossil record, molecular biology (e.g., amino acid and nucleotide sequencing, ubiquity of genetic code and fundamental biochemical pathways) embryology and development. F. Discuss the controversies surrounding evolution. CHEMISTRY Atomic and Molecular Structure A. Describe the nature o ...
... biogeography, fossil record, molecular biology (e.g., amino acid and nucleotide sequencing, ubiquity of genetic code and fundamental biochemical pathways) embryology and development. F. Discuss the controversies surrounding evolution. CHEMISTRY Atomic and Molecular Structure A. Describe the nature o ...
Plant mitogen-activated protein kinase signaling cascades
... Known eukaryotic MAPKs can be divided into three main subfamilies on the basis of their structural characteristics, which often correlate with their functions in distinct signal transduction pathways [7]. However, all plant MAPK genes described so far belong to a single group, the so-called extracel ...
... Known eukaryotic MAPKs can be divided into three main subfamilies on the basis of their structural characteristics, which often correlate with their functions in distinct signal transduction pathways [7]. However, all plant MAPK genes described so far belong to a single group, the so-called extracel ...
A prophage-encoded actin-like protein required for efficient viral
... In host cells, viral replication is localized at specific subcellular sites. Viruses that infect eukaryotic and prokaryotic cells often use host-derived cytoskeletal structures, such as the actin skeleton, for intracellular positioning. Here, we describe that a prophage, CGP3, integrated into the ge ...
... In host cells, viral replication is localized at specific subcellular sites. Viruses that infect eukaryotic and prokaryotic cells often use host-derived cytoskeletal structures, such as the actin skeleton, for intracellular positioning. Here, we describe that a prophage, CGP3, integrated into the ge ...
Diatom cell division in an environmental context
... invoked (reviewed in [12]), and in addition several studies have revealed the role of allelopathic signals in population control. As a case in point, toxigenic effects of diatom-derived oxylipins have been documented on grazers, phytoplankton and other microbes [42]. Some of these molecules are al ...
... invoked (reviewed in [12]), and in addition several studies have revealed the role of allelopathic signals in population control. As a case in point, toxigenic effects of diatom-derived oxylipins have been documented on grazers, phytoplankton and other microbes [42]. Some of these molecules are al ...
GNOM-LIKE1/ERMO1 and SEC24a/ERMO2 Are
... construct was transiently expressed in 6- to 8-d-old seedlings of each T-DNA line. All of these lines developed spherical bodies similar to those in ermo1-1 (Figures 5B to 5E). In addition, the F1 seedlings generated by crossing ermo1-1 with either ermo1-3 or ermo1-4 also developed spherical bodies ...
... construct was transiently expressed in 6- to 8-d-old seedlings of each T-DNA line. All of these lines developed spherical bodies similar to those in ermo1-1 (Figures 5B to 5E). In addition, the F1 seedlings generated by crossing ermo1-1 with either ermo1-3 or ermo1-4 also developed spherical bodies ...
Symbiotic nitrogen fixation in legume nodules - HAL
... exchanged between the plant and bacteria to the differentiation and operation of root nodules, the plant organ in which nitrogen fixation takes place. The initial sensing of the two organisms by each other starts with the release of root exudates by the plant that include flavonoids and nutrients suc ...
... exchanged between the plant and bacteria to the differentiation and operation of root nodules, the plant organ in which nitrogen fixation takes place. The initial sensing of the two organisms by each other starts with the release of root exudates by the plant that include flavonoids and nutrients suc ...
REVIEW - The Journal of Cell Biology
... outer surface (stroma side) of the thylakoids. Whether there are any cytoplasmically synthesized peripheral proteins which finally become localized on the inner surface (thylakoid space) of the thylakoids is not known. The localization of CP II has been investigated in at least two different plant s ...
... outer surface (stroma side) of the thylakoids. Whether there are any cytoplasmically synthesized peripheral proteins which finally become localized on the inner surface (thylakoid space) of the thylakoids is not known. The localization of CP II has been investigated in at least two different plant s ...
14-3-3 associates with cell surface aminopeptidase N in the
... responsible for degradation of ECM and are involved in a variety of biological processes, such as tissue repair and remodeling, embryonic development, bone growth/resorption and tumor metastasis (Butler and Overall, 2009b; Nagase et al., 2006; Rodriguez et al., 2010). The synthesis of MMPs by stroma ...
... responsible for degradation of ECM and are involved in a variety of biological processes, such as tissue repair and remodeling, embryonic development, bone growth/resorption and tumor metastasis (Butler and Overall, 2009b; Nagase et al., 2006; Rodriguez et al., 2010). The synthesis of MMPs by stroma ...
Document
... A fiber bundle is really a number of many myofibrils Each myofibril is a linear array of sarcomeres, which is the basic unit of a myofibril Each sarcomere is capped on its ends by a transverse tubule The surfaces of the sarcomeres are covered by this reticulum containing calcium o And calciu ...
... A fiber bundle is really a number of many myofibrils Each myofibril is a linear array of sarcomeres, which is the basic unit of a myofibril Each sarcomere is capped on its ends by a transverse tubule The surfaces of the sarcomeres are covered by this reticulum containing calcium o And calciu ...
Impact of the cell lifecycle on bacteriophage T4 infection
... cell age was normalized to account for small cycle-tocycle variability during SCF operation (see Supporting Information, Fig. S1). Cell density has also been normalized to facilitate comparison between experiments. (For each experiment the cell density was divided by the final cell concentration.) T ...
... cell age was normalized to account for small cycle-tocycle variability during SCF operation (see Supporting Information, Fig. S1). Cell density has also been normalized to facilitate comparison between experiments. (For each experiment the cell density was divided by the final cell concentration.) T ...
Thesis - KI Open Archive
... linked to prolonged bacterial persistence at the tissue site. It was therefore of interest to investigate how the bacteria could survive within professional phagocytes that have evolved for the specific purpose of degrading invading microbes. Hence, the overall aim of the thesis was to decipher stre ...
... linked to prolonged bacterial persistence at the tissue site. It was therefore of interest to investigate how the bacteria could survive within professional phagocytes that have evolved for the specific purpose of degrading invading microbes. Hence, the overall aim of the thesis was to decipher stre ...
Use of Recombinant Mucin Glycoprotein to Assess the
... altered transcription of genes encoding for mucin [4,5] or alteration in glycosylation of mucins [5,6]. Studies have also shown that bacterial gene expression can be altered upon exposure to mucin [7,8]. Despite its obvious importance our knowledge of how bacteria interact with mucins has lagged beh ...
... altered transcription of genes encoding for mucin [4,5] or alteration in glycosylation of mucins [5,6]. Studies have also shown that bacterial gene expression can be altered upon exposure to mucin [7,8]. Despite its obvious importance our knowledge of how bacteria interact with mucins has lagged beh ...
Auxin Action in a Cell
... essary for the auxin-dependent binding of Aux/IAA proteins, we expect that decreased membranes in the cellfree extract would cause a significant reduction in SCFTIR1-Aux/IAA interaction. However, as shown in Figure 2C, high-speed centrifugation had no effect on the level of activity, indicating that ...
... essary for the auxin-dependent binding of Aux/IAA proteins, we expect that decreased membranes in the cellfree extract would cause a significant reduction in SCFTIR1-Aux/IAA interaction. However, as shown in Figure 2C, high-speed centrifugation had no effect on the level of activity, indicating that ...
Programmed cell death during plant growth and development
... are cell suicide programs initiated by stress (e.g., hypoxiainduced aerenchyma formation) and those that depend on communication between neighboring cells, as observed for incompatible pollen tubes, the suspensor and synergids in some species. Although certain elements of apoptosis are detectable du ...
... are cell suicide programs initiated by stress (e.g., hypoxiainduced aerenchyma formation) and those that depend on communication between neighboring cells, as observed for incompatible pollen tubes, the suspensor and synergids in some species. Although certain elements of apoptosis are detectable du ...
Functions of AP1 (Fos/Jun) in bone development
... complex are differentially expressed during osteoblast maturation in vitro5 with all Fos and Jun proteins initially being highly expressed. Subsequently, during the period of extracellular matrix production and mineralisation, their levels decline, and Fra-2 and JunD become the major components of t ...
... complex are differentially expressed during osteoblast maturation in vitro5 with all Fos and Jun proteins initially being highly expressed. Subsequently, during the period of extracellular matrix production and mineralisation, their levels decline, and Fra-2 and JunD become the major components of t ...
Coca Cola
... Nucleotide turnover in cytoskeletal subunits Actin subunits bind ATP Tubulin heterodimers bind GTP The subunit changes its conformation upon nucleotide hydrolysis Subunit bound to a nucleoside triphosphate Nucleotide hydrolysis ...
... Nucleotide turnover in cytoskeletal subunits Actin subunits bind ATP Tubulin heterodimers bind GTP The subunit changes its conformation upon nucleotide hydrolysis Subunit bound to a nucleoside triphosphate Nucleotide hydrolysis ...
The role of calcium and other ions in sorting and delivery in the late
... even though EGTA has no effect. In addition to BAPTA, ionomycin, a Ca2+ ionophore, and Ca2+ -ATPase inhibitors all blocked homotypic vacuole fusion. It was also possible to deplete luminal Ca2+ stores by treatment with BAPTA in the presence of ionomycin and show that such Ca2+ -depleted vacuoles wer ...
... even though EGTA has no effect. In addition to BAPTA, ionomycin, a Ca2+ ionophore, and Ca2+ -ATPase inhibitors all blocked homotypic vacuole fusion. It was also possible to deplete luminal Ca2+ stores by treatment with BAPTA in the presence of ionomycin and show that such Ca2+ -depleted vacuoles wer ...
Desferrioxamine-mediated Iron Uptake in Saccharomyces cerevisiae. Evidence for two pathways of iron uptake.
... Reduction followed by transport of elemental iron is only one of the strategies that organisms use to accumulate iron. Most bacteria and fungi synthesize and secrete siderophores, low molecular weight compounds that specifically bind ferric iron. Siderophores bind ferric iron with high affinity, and ...
... Reduction followed by transport of elemental iron is only one of the strategies that organisms use to accumulate iron. Most bacteria and fungi synthesize and secrete siderophores, low molecular weight compounds that specifically bind ferric iron. Siderophores bind ferric iron with high affinity, and ...
Abstracts - Institute of Plant Sciences Paris
... Alternative splicing (AS) is widespread in plants, affecting more than 60 % of all introncontaining genes in Arabidopsis thaliana, and has been linked to fundamental aspects of plant development. The AS outcome depends on the action of splicing factors, only few of which have been examined in plants ...
... Alternative splicing (AS) is widespread in plants, affecting more than 60 % of all introncontaining genes in Arabidopsis thaliana, and has been linked to fundamental aspects of plant development. The AS outcome depends on the action of splicing factors, only few of which have been examined in plants ...
Cytoplasmic streaming enables the distribution of molecules
... physiological consequences of streaming fall naturally into the two categories of intra- and intercellular roles. These potential roles are easily seen using as a model the alga, Chara corallina, which has historically been among the organisms of choice for studies of cytoplasmic streaming due to it ...
... physiological consequences of streaming fall naturally into the two categories of intra- and intercellular roles. These potential roles are easily seen using as a model the alga, Chara corallina, which has historically been among the organisms of choice for studies of cytoplasmic streaming due to it ...
Cytoplasmic streaming enables the distribution of molecules
... physiological consequences of streaming fall naturally into the two categories of intra- and intercellular roles. These potential roles are easily seen using as a model the alga, Chara corallina, which has historically been among the organisms of choice for studies of cytoplasmic streaming due to it ...
... physiological consequences of streaming fall naturally into the two categories of intra- and intercellular roles. These potential roles are easily seen using as a model the alga, Chara corallina, which has historically been among the organisms of choice for studies of cytoplasmic streaming due to it ...
Thermostability of the human respiratory syncytial virus fusion
... for membrane fusion resides in the F protein. We reported previously that purified HRSV F protein formed rosettes of rods with two different shapes, cones and lollipops (Calder et al., 2000). The rosettes were formed by aggregation of individual rods through their transmembrane regions. A membrane-a ...
... for membrane fusion resides in the F protein. We reported previously that purified HRSV F protein formed rosettes of rods with two different shapes, cones and lollipops (Calder et al., 2000). The rosettes were formed by aggregation of individual rods through their transmembrane regions. A membrane-a ...
Cell Metabolism
... decreases HNF4 transcriptional activity, suggesting that this interaction is essential for receptor function (Wisely et al., 2002; Aggelidou et al., 2004). Both active and inactive LBD conformations of HNF4a have bound LCFAs, implying that another mechanism is required for HNF4 transcriptional activ ...
... decreases HNF4 transcriptional activity, suggesting that this interaction is essential for receptor function (Wisely et al., 2002; Aggelidou et al., 2004). Both active and inactive LBD conformations of HNF4a have bound LCFAs, implying that another mechanism is required for HNF4 transcriptional activ ...
Signal transduction
Signal transduction occurs when an extracellular signaling molecule activates a specific receptor located on the cell surface or inside the cell. In turn, this receptor triggers a biochemical chain of events inside the cell, creating a response. Depending on the cell, the response alters the cell's metabolism, shape, gene expression, or ability to divide. The signal can be amplified at any step. Thus, one signaling molecule can cause many responses.