Tubular structures involved in movement of cowpea mosaic virus are
... were shown to possess tubular structures extending from their surface. The tubule wall was 3 to 4 nm thick and they were up to 20 gm in length, as shown by fluorescent light microscopy and negative staining electron microscopy. By analogy to infected plant cells, both the viral 58K/48K movement and ...
... were shown to possess tubular structures extending from their surface. The tubule wall was 3 to 4 nm thick and they were up to 20 gm in length, as shown by fluorescent light microscopy and negative staining electron microscopy. By analogy to infected plant cells, both the viral 58K/48K movement and ...
Purification and some characteristics of a calcium
... proteins contains Cys residues. The unique trimethyllysine residue present in calmodulin was not determined in the B. cereus spore calcium-binding protein. The spore calcium-bindingProtein has an average (H$ave) of O.90 kcid (3'77 kJ) per residue and a discriminant function (z) of 0 according to the ...
... proteins contains Cys residues. The unique trimethyllysine residue present in calmodulin was not determined in the B. cereus spore calcium-binding protein. The spore calcium-bindingProtein has an average (H$ave) of O.90 kcid (3'77 kJ) per residue and a discriminant function (z) of 0 according to the ...
Stamen Structure and Function
... Irish, 2003) and a subunit of the COP9 signalosome (a repressor of photomorphogenesis in plants) found to be upregulated in rice anthers at the panicle heading stage, suggesting a role in mediating light signals to coordinate flowering with anther dehiscence (Kerim et al., 2003). In situ hybridizati ...
... Irish, 2003) and a subunit of the COP9 signalosome (a repressor of photomorphogenesis in plants) found to be upregulated in rice anthers at the panicle heading stage, suggesting a role in mediating light signals to coordinate flowering with anther dehiscence (Kerim et al., 2003). In situ hybridizati ...
Population Biology of Lymphocytes
... Naive CD4+ T cells also require allele-specific MHC class II interactions to survive (13, 14). Monoclonal TCR-Tg CD4+ T cells, restricted to I-Ad, survive after transfer into IAd+ recipients, but disappear after transfer into I-Ad-Ab+ recipients. Persistence of nonTg CD4+ policlonal populations also ...
... Naive CD4+ T cells also require allele-specific MHC class II interactions to survive (13, 14). Monoclonal TCR-Tg CD4+ T cells, restricted to I-Ad, survive after transfer into IAd+ recipients, but disappear after transfer into I-Ad-Ab+ recipients. Persistence of nonTg CD4+ policlonal populations also ...
PDF
... For this study, we used the consensus site, R⫺3-R⫺2-x⫺1-S兾TB⫹1, that had been defined by previous work with PKA enzymes from a variety of sources, including yeast and humans (19–22). A search of the S. cerevisiae proteome found 553 occurrences of this consensus sequence in 491 proteins (Table 2, whi ...
... For this study, we used the consensus site, R⫺3-R⫺2-x⫺1-S兾TB⫹1, that had been defined by previous work with PKA enzymes from a variety of sources, including yeast and humans (19–22). A search of the S. cerevisiae proteome found 553 occurrences of this consensus sequence in 491 proteins (Table 2, whi ...
Characterization of Acetyl-CoA Carboxylases in the Basal
... ACC mRNA quantification was consistent with the global transcript patterns in dinoflagellates ACC mRNA quantification was consistent with the global transcript patterns in dinoflagellates over a diel light cycle. Previously, in A. carterae, global changes in mRNA abundance were observed over a die ...
... ACC mRNA quantification was consistent with the global transcript patterns in dinoflagellates ACC mRNA quantification was consistent with the global transcript patterns in dinoflagellates over a diel light cycle. Previously, in A. carterae, global changes in mRNA abundance were observed over a die ...
Lab #6: Neurophysiology Simulation
... negative, and the membrane potential moves back towards the resting potential. Once the membrane potential is repolarized below threshold, the voltage-gated K+ channels close. Although the resting potential has been restored, the concentration gradients for Na+ and K+ are now different from resting ...
... negative, and the membrane potential moves back towards the resting potential. Once the membrane potential is repolarized below threshold, the voltage-gated K+ channels close. Although the resting potential has been restored, the concentration gradients for Na+ and K+ are now different from resting ...
Activation of the Cell Wall Degrading Protease, Lysin, during Sexual
... fertilization is initiated when mating type plus (mt+) ~ and mating type minus (rot-) gametes adhere to each other via their flagella. This specific cell-cell recognition event induces a sexual signal that leads to several subsequent events including release of an enzyme, lysin, that causes wall she ...
... fertilization is initiated when mating type plus (mt+) ~ and mating type minus (rot-) gametes adhere to each other via their flagella. This specific cell-cell recognition event induces a sexual signal that leads to several subsequent events including release of an enzyme, lysin, that causes wall she ...
The bacterial divisome: ready for its close-up
... can pinpoint a close interaction in a live cell, and is sufficiently stable that even transient interactions can be marked. It can be used with standard microscope set-ups and requires no complex image processing. However, the disadvantage is that the reconstitution is relatively inefficient, so fal ...
... can pinpoint a close interaction in a live cell, and is sufficiently stable that even transient interactions can be marked. It can be used with standard microscope set-ups and requires no complex image processing. However, the disadvantage is that the reconstitution is relatively inefficient, so fal ...
Growth rate regulation of lac operon expression in Escherichia coli
... activation or repression of many promoters [10]. The intracellular cAMP concentrations or the ability of the cell to accumulate cAMP are di¡erent in di¡erent nutrient compositions [11]. Early studies showed that changes in the dilution rate do not vary the cAMP level in E. coli, but this may be due ...
... activation or repression of many promoters [10]. The intracellular cAMP concentrations or the ability of the cell to accumulate cAMP are di¡erent in di¡erent nutrient compositions [11]. Early studies showed that changes in the dilution rate do not vary the cAMP level in E. coli, but this may be due ...
Reciprocal Linkage between Self-organizing Processes is Sufficient
... for obtaining and transforming substrates to support continual maintenance of internal structural integrity as well as for copying and transcribing the molecular information. 3. Containment. Organisms are enclosed in structures (e.g., cell membranes and protein capsules) that maintain component prox ...
... for obtaining and transforming substrates to support continual maintenance of internal structural integrity as well as for copying and transcribing the molecular information. 3. Containment. Organisms are enclosed in structures (e.g., cell membranes and protein capsules) that maintain component prox ...
Full-Text PDF
... (bacteriostatic drugs). Even though bacterial and human cells share a lot of the same characteristics, there are differences that make antibiotics selectively toxic and they can deliver damage to the pathogen without causing harm to host cells, namely human cells. DNA, RNA, cell walls or the protein ...
... (bacteriostatic drugs). Even though bacterial and human cells share a lot of the same characteristics, there are differences that make antibiotics selectively toxic and they can deliver damage to the pathogen without causing harm to host cells, namely human cells. DNA, RNA, cell walls or the protein ...
Pituitary hormones_E
... Regulation of cell function: Ca2+ acting as a third messenger in some situations ...
... Regulation of cell function: Ca2+ acting as a third messenger in some situations ...
Degradation of the plant cell wall by nematodes
... Cellulose microfibrils are embedded in a matrix of complex polysaccharides, which are divided into two classes: pectins and hemicellulose. Hemicelluloses are cellulose binding polysaccharides that form a strong but resilient network together with the cellulose. More specifically, they are defined as ...
... Cellulose microfibrils are embedded in a matrix of complex polysaccharides, which are divided into two classes: pectins and hemicellulose. Hemicelluloses are cellulose binding polysaccharides that form a strong but resilient network together with the cellulose. More specifically, they are defined as ...
NEUROGENESIS Y PLASTICIDAD DEL HIPOCAMPO ADULTO
... Parallel channeling of information arriving to the dentate gyrus: highly active cohorts of young non-specific GCs and highly input-specific mature GCs ...
... Parallel channeling of information arriving to the dentate gyrus: highly active cohorts of young non-specific GCs and highly input-specific mature GCs ...
- Cary Institute of Ecosystem Studies
... enzymes making them, it is necessary to consider the types of physicochemical properties that substances possess that could act as a focus for selection. Like human characters, chemical characters have many facets to their personality and more than one facet may play a part in selection. However, th ...
... enzymes making them, it is necessary to consider the types of physicochemical properties that substances possess that could act as a focus for selection. Like human characters, chemical characters have many facets to their personality and more than one facet may play a part in selection. However, th ...
Chapter 5 Lodish 6E
... Analyze the Data: Using RNAi RNA interference (RNAi) is a process of post-transcriptional gene silencing mediated by short double-stranded RNA molecules called siRNA (small interfering RNAs). In mammalian cells, transfection of 21–22 nucleotide siRNAs leads to degradation of mRNA molecules that cont ...
... Analyze the Data: Using RNAi RNA interference (RNAi) is a process of post-transcriptional gene silencing mediated by short double-stranded RNA molecules called siRNA (small interfering RNAs). In mammalian cells, transfection of 21–22 nucleotide siRNAs leads to degradation of mRNA molecules that cont ...
Stress-induced electrolyte leakage: the role of K+
... Electrolyte leakage accompanies plant response to stresses, such as salinity, pathogen attack, drought, heavy metals, hyperthermia, and hypothermia; however, the mechanism and physiological role of this phenomenon have only recently been clarified. Accumulating evidence shows that electrolyte leakag ...
... Electrolyte leakage accompanies plant response to stresses, such as salinity, pathogen attack, drought, heavy metals, hyperthermia, and hypothermia; however, the mechanism and physiological role of this phenomenon have only recently been clarified. Accumulating evidence shows that electrolyte leakag ...
v11a32-hawse pgmkr
... between matched lens epithelial and cortical fiber cells. We demonstrate that 2,463 genes exhibit altered expression levels of 2 fold or greater between lens epithelial cells relative to cortical fibers. Of these, 222 genes are upregulated and 135 genes are downregulated in the lens epithelium at th ...
... between matched lens epithelial and cortical fiber cells. We demonstrate that 2,463 genes exhibit altered expression levels of 2 fold or greater between lens epithelial cells relative to cortical fibers. Of these, 222 genes are upregulated and 135 genes are downregulated in the lens epithelium at th ...
Expression of 35S::Pto Globally Activates
... The clones were characterized by “reverse northern” analysis (see “Materials and Methods”). Southern blots containing PCR products of the cDNA clones were probed with radiolabeled cDNA probes made from RNA extracted from non-transgenic tomato leaves or the 35S::Pto tomato leaves. Of 77 clones tested ...
... The clones were characterized by “reverse northern” analysis (see “Materials and Methods”). Southern blots containing PCR products of the cDNA clones were probed with radiolabeled cDNA probes made from RNA extracted from non-transgenic tomato leaves or the 35S::Pto tomato leaves. Of 77 clones tested ...
Membrane voltage initiates Ca2 waves and potentiates Ca2
... Hyperpolarization. Vicia guard cells, like Characean algae and possibly many higher-plant cells (17, 21), commonly show two states of membrane voltage. In 10 mM [K1]o (EK . 270 mV), transitions between these two states often lead to voltage changes in excess of 150 mV and can give rise to voltage os ...
... Hyperpolarization. Vicia guard cells, like Characean algae and possibly many higher-plant cells (17, 21), commonly show two states of membrane voltage. In 10 mM [K1]o (EK . 270 mV), transitions between these two states often lead to voltage changes in excess of 150 mV and can give rise to voltage os ...
Ornithodoros savignyi CHAPTER 2 SIGNALING PATHWAYS REGULATING PROTEIN SECRETION FROM
... receptors, resulting in an increased maximum response. Because spiperone has no intrinsic activity, its receptor has no direct link to the fluid secretory mechanism. ...
... receptors, resulting in an increased maximum response. Because spiperone has no intrinsic activity, its receptor has no direct link to the fluid secretory mechanism. ...
A Discussion of the Mechanism of Action of Steroid Hormones*
... number of primary sites of synthesis of such steroids have been identified as well as the chemi cal agents which they produce. That other steroid hormones will be found which are selectively pro duced in cells not nearly so susceptible to removal from the host seems highly probable, although it does ...
... number of primary sites of synthesis of such steroids have been identified as well as the chemi cal agents which they produce. That other steroid hormones will be found which are selectively pro duced in cells not nearly so susceptible to removal from the host seems highly probable, although it does ...
Stages of Translation (Biol 200 Sp2015): KEY Initiation
... Cell 3: About a third of all new proteins in a mutated cell are not doing their jobs correctly. When you compared to proteins in a healthy cell, these proteins appear much larger overall. Some tRNA has changed it’s anticodon to recognize one of the three STOP codons, so this is erroneously continuin ...
... Cell 3: About a third of all new proteins in a mutated cell are not doing their jobs correctly. When you compared to proteins in a healthy cell, these proteins appear much larger overall. Some tRNA has changed it’s anticodon to recognize one of the three STOP codons, so this is erroneously continuin ...
Tubulin folding is altered by mutations in a putative GTP binding motif
... sequence analysis of the final construct. To generate equivalent constructs under the control of the SP6 promoter, the 1.3 kb HindIIIEcoRV fragments with either single or double amino acids changes were substituted for wild-type or β1K147 tubulin sequences contained in the SP6-plasmid pSP64. To crea ...
... sequence analysis of the final construct. To generate equivalent constructs under the control of the SP6 promoter, the 1.3 kb HindIIIEcoRV fragments with either single or double amino acids changes were substituted for wild-type or β1K147 tubulin sequences contained in the SP6-plasmid pSP64. To crea ...
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.