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the Cytoskeleton in Plant Development1
the Cytoskeleton in Plant Development1

... stimuli (refer to section III for details). The ensuing mitosis is heralded by a displacement of the nucleus to the cell centre, i.e., to the site where the prospective cell plate will be formed. Simultaneously, radial microtubules emanate from the nuclear surface and merge with the cortical cytoske ...
Book of Abstracts - Oxygen Club of California
Book of Abstracts - Oxygen Club of California

... BOOK OF ABSTRACTS ...
T cell co-stimulatory receptor CD28 is a primary target for
T cell co-stimulatory receptor CD28 is a primary target for

... on the LUV; (ii) the tyrosine kinases Lck, ZAP70 (a key cytosolic tyrosine kinase which binds to phosphorylated CD3 subunits to propagate the TCR signal (34)), and in some experiments the inhibitory kinase Csk (35); and (iii) downstream adapter and effector proteins LAT, Gads, SLP76 (36) and the reg ...
Monosaccharide transporters in plants: structure, function and
Monosaccharide transporters in plants: structure, function and

... Algae can switch between phototrophic and heterotrophic growth and utilize organic compounds, such as monosaccharides as additional or sole carbon sources. Higher plants represent complex mosaics of phototrophic and heterotrophic cells and tissues and depend on the activity of numerous transporters ...
Dendrites as separate compartment – local protein synthesis
Dendrites as separate compartment – local protein synthesis

... pyramidal and granular neurons. SPRCs are polyribosomes connected with endoplasmatic reticulum cisterns that are selectively and precisely localized beneath postsynaptic sites on dendrites of CNS neurons (Steward 1983, Steward and Fass 1983). In their article Steward and Levy reported: “polyribosome ...
REGULATION OF HORMONE SECRETION Hormones secretion is
REGULATION OF HORMONE SECRETION Hormones secretion is

... by the interstitial cells of leydig only when the testes are stimulated by LH from the pituitary gland, and the quantity of testosterone secreted varies approximately in proportion to the amount of LH available. Thus in males LH stimulate the development and functional activity of leydig cells (inte ...
PDF
PDF

... [16,17]. Another striking difference between diatoms and green algae/land plants is their different nuclear and mitochondrial backgrounds because they arose from different host cells. We annotated genes involved in carbon acquisition and metabolism in the genome of the diatom P. tricornutum and comp ...
Chapter 3—Cells
Chapter 3—Cells

... What is the main difference between a unicellular organism and a multicellular organism in the way life processes are carried out? ANS: Sample answer: A unicellular organism must perform all life functions by itself. A multicellular organism may have specialized cells that work together to carry out ...
NDC1 : A Nuclear Periphery Component Required for Yeast Spindle Pole Body Duplication.
NDC1 : A Nuclear Periphery Component Required for Yeast Spindle Pole Body Duplication.

... lacking any spindle microtubules, the defective SPB is segregated away from the functional SPB by a mechanism that remains unknown. The ndc/-1 (nuclear division cycle) mutation renders yeast cold-sensitive for growth and causes several defects that are similar to those observed in raps2 mutants, yet ...
Identification of a novel N-terminal hydrophobic sequence that
Identification of a novel N-terminal hydrophobic sequence that

... the bilayer and subsequently bud into the cytoplasm (van Meer, 2001). Virtually all eukaryotic and many bacterial cells can accumulate lipid droplets, which suggests that the adiposome machinery is common to all cells. All organelles contain core molecules that govern their biogenesis and function, ...
Taste Physiology - Viktor`s Notes for the Neurosurgery Resident
Taste Physiology - Viktor`s Notes for the Neurosurgery Resident

... but exact role remains unsettled.  all four modalities can be sensed on pharynx and epiglottis.  additional taste modality named UMAMI has been postulated to exist - taste of (monosodium) glutamate.  taste cells are not different histologically; each nerve fiber responds to more than one taste st ...
An FGF4-FRS2[alpha]-Cdx2 Axis in Trophoblast Stem Cells Induces
An FGF4-FRS2[alpha]-Cdx2 Axis in Trophoblast Stem Cells Induces

... Fgf4-null embryos likely results from the failure of proper differentiation and functions of extraembryonic cell types [11]. The phenotype of mice with a deletion of Exon 9 of Fgfr2 resembles that of Fgf4-null mice [3]. The membrane-linked docking protein FRS2a is a major mediator of FGF signaling [ ...
Materials and methods - HAL
Materials and methods - HAL

... myocytes triggers a transient calcium release from the SR intracellular store within seconds suggesting a very fast passage across the membrane [5]. The identification of MCa’s binding site on RyR and the cytoplasmic localization of this site indicate that MCa crosses the plasma membrane to reach th ...
Detecting RNA viruses in living mammalian cells by fluorescence microscopy Author's personal copy
Detecting RNA viruses in living mammalian cells by fluorescence microscopy Author's personal copy

... difficult to cultivate in the laboratory environment. Several direct examination techniques, such as immunofluorescence, ELISA, and electron microscopy, have also been used for viral particle detection, although they suffer from poor sensitivity and specificity, which makes it difficult to interpret ...
9/12
9/12

... Repellent ...
New roles for Nanos in neural cell fate determination revealed by
New roles for Nanos in neural cell fate determination revealed by

... on a daily basis, has a short and accessible embryonic development, and is amenable to gene expression analysis and manipulation. The cnidarian nervous system is of particular interest because it is continuously being renewed in the adult animals and because the molecular mechanisms that specify neu ...
In-Cell Solid-State NMR - Institut de Biologie Physico
In-Cell Solid-State NMR - Institut de Biologie Physico

... increased by only a factor of 2 (8), which should not be a major obstacle for solution-state NMR. Nevertheless, the molecular rotational correlation time can become prohibitively long for specific cellular or membrane interactions, in which case solid-state NMR and magic-angle spinning (MAS) may be ...
From DEPARTMENT OF MEDICAL
From DEPARTMENT OF MEDICAL

... The degeneration of midbrain dopaminergic (mDA) neurons accounts for some of the main motor symptoms of Parkinson’s disease (PD). Efforts during the last decades have focused on understanding how mDA neurons are generated and maintained with the hope of developing novel stem cell-based replacement t ...
Chapter 15:The Autonomic Nervous System and Visceral Reflexes
Chapter 15:The Autonomic Nervous System and Visceral Reflexes

... explain how they relate to autonomic effects. – Explain how the ANS controls many target organs through dual innervation. – Explain how control is exerted in the absence of dual innervation. ...
Structural bioinformatics Amino acids – the building blocks of proteins
Structural bioinformatics Amino acids – the building blocks of proteins

... Proteins, T.E. Creighton (Freeman, New York, 1997) ...
Epithelial to mesenchymal transition during gastrulation
Epithelial to mesenchymal transition during gastrulation

... into two general types: those cells with a two-dimensional organization with their neighbors (epithelial) and those with a three-dimensional organization (mesenchymal). The two-dimensional organization of an epithelium is relative, of course, as it can fold into topologically complex structures, and ...
Symbioses and Stress
Symbioses and Stress

... advantageous because rhizobia in a biofilm are protected from environmental insults as a consequence of their exopolymeric matrix and lowered metabolic rate. A recent study of the gram-negative, nonspore-producing Rhizobium NGR234 attached to dry sand showed a decline in viability after 9 weeks of d ...
Werkstuk Biologie The Tongue  <strong style="line
Werkstuk Biologie The Tongue
Document
Document

... Examples: Keratin is the protein of hair, horns, feathers, and other skin appendages. Insects and spiders use silk fibers to make their cocoons and webs, respectively. Collagen and elastin proteins provide a fibrous framework in animal connective tissues. ...
- Orange Coast College
- Orange Coast College

... Basal cells generate new receptor cells every 1-2 months. Supporting cells contain enzymes that oxidize hydrophobic volatile odorants. ...
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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.
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