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Adherence of Pathogenic Mycoplasmas to Host Cells
Adherence of Pathogenic Mycoplasmas to Host Cells

... several other mycoplasmas have developed a special organelle at the tip of the elongated flask-shaped cell on the surface of which there is a high concentration of adhesin molecules. These mycoplasmas attach to the eukaryotic cells via this tip structure (Razin and Jacobs, 1992; Krause, 1996, 1998). ...
The Cell Cycle of the Budding Yeast
The Cell Cycle of the Budding Yeast

... septum or cross wall in the mid-region of the cell, and results in the approximately equal distribution of cellular material between the two neonatal cells. In certain micro-organisms, notably the budding and prosthecate bacteria (Whittenbury & Dow, 1977) and budding yeasts, development during the c ...
Golgi Regeneration after Brefeldin A Treatment in
Golgi Regeneration after Brefeldin A Treatment in

... (Reinke et al., 2004) and mammalian cells (AltanBonnet et al., 2006) has firmly established that the postmitotic reconstruction of the Golgi apparatus is dependent upon the reactivation of ER export activity. Although the GTPases Sar1 and Arf1 locate to the ER and the Golgi apparatus, respectively, ...
Enzymatic Evidence for Differences in the
Enzymatic Evidence for Differences in the

... (C/c) and (E/e), which are usually expressed along with it, have been shown to be associated with polypeptides having apparent molecular weights (mol wts) in the range of 28,000 to 35,000 daltons.*-*These appear to be nonglyc~sylated~ integral membrane proteins recently shown to contain thiollinked ...
Microtubules and the Evolution of Mitosis
Microtubules and the Evolution of Mitosis

... It began with the striking news that FtsZ, a protein essential for the fission of bacterial cells, is the prokaryotic ancestor of tubulin (Löwe and Amos 1998). It was later shown that MreB, a bacterial protein with homology to actin, is required for the maintenance of cell polarity during asymmetric ...
Functional proteome analysis of wheat: systematic classification of
Functional proteome analysis of wheat: systematic classification of

... Crucial functions of the plant cell are to take action against environmental stresses for self-defense. Evaluation of two-dimensional electrophoresis gels revealed several proteins to be differentially expressed as a result of abiotic stress among cultivars. 217 protein spots of interest were, after ...
Methods S1.
Methods S1.

... evaporated, the semi-viscous tissue powder was transferred to an eppendorf tube containing 200 µL of 0.4 M HCIO4 and placed on ice for 10 minutes. After centrifugation (10.000 x g for 10 minutes at 4ºC), 150 µL of the supernatant was transferred to an empty Eppendorf tube and neutralized to pH 7.5-8 ...
Slide 2 - Fileburst
Slide 2 - Fileburst

... http://www.mrc-mbu.cam.ac.uk/category/slideshows/atpmovies ...
Generation and propagation of axon potentials
Generation and propagation of axon potentials

... Brain is comprised of networks of neurons connected and communicating via synapses ...
Lecture 02
Lecture 02

... Here: im is the total electric current flowing through the axonal membrane, g is the electric conductance, Na = sodium, K = potassium, L is all other ions (the so-called leakage current). E denotes the equilibrium potential for that ion. ...
Cells are Either Prokaryotic or Eukaryotic
Cells are Either Prokaryotic or Eukaryotic

... • Organelles are “tiny organs” within the cell that carry out specialized functions, such as energy transfer and materials recycling. ...
BIOCHEMISTRY AND MOLECULAR BIOLOGY
BIOCHEMISTRY AND MOLECULAR BIOLOGY

... 8. Simple, complex and isoprenoid lipids Classification and nomenclature of lipids Structural, functional and biological characteristics of simple lipids; acylglycerides and cerides Structural, functional and biological characteristics of complex lipids; sphingophospholipids, glyceroglycolipids and ...
The early days of plastid retrograde signaling with
The early days of plastid retrograde signaling with

... mechanism for the ODR–NDR coupling described above requires basically only one specific protein, Fbx3, to be established as an additional cytoplasmic component. Providing that the evolution of Fbx3 adequately explains the chloroplast-to-nucleus DNA replication coupling, this mechanism could have been ...
Signaling
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... surface receptors (GPCRs) and small intracellular mediators Signaling through enzyme-coupled cellsurface receptors ...
Seasonal regulation of a 24-kDa protein from red
Seasonal regulation of a 24-kDa protein from red

... change during CA in some species. Alterations in amounts of lignin and suberin (Griffith and Brown 1982), extracellular soluble and pectic polysaccharides, callose (Wallner et al. 1986) and cell-wall-associated proteins (e.g., Jian et al. 1987, Weiser et al. 1990, Kozbial et al. 1998) have been obse ...
The 2016 Nobel Prize in Physiology or Medicine
The 2016 Nobel Prize in Physiology or Medicine

... The Nobel Prize in Physiology or Medicine for 2016 was awarded to Yoshinori Ohsumi (Japan) for his work on autophagy. Autophagy, meaning ‘self-eating’, is the process where the cell content like large macromolecule complexes or organelles are fused with the lysosome for degradation and recycling. Wh ...
Presentation - people.vcu.edu
Presentation - people.vcu.edu

... particularly important because it directly associates itself with keratin. ...
The Plant Journal
The Plant Journal

... et al., 1998). ADL6 was shown to associate with the Golgi apparatus (Jin et al., 2001). The cellular compartment to which ADL3 associates is currently unknown. Apart from difference in subcellular localization, the cellular functions of dynamin-like proteins revealed so far are very different from t ...
Development of Peltate Glandular Trichomes of
Development of Peltate Glandular Trichomes of

... redox metabolism (Fig. 1), appear to occur in the cytosol (Wise and Croteau, 1999). With the pathway for the biosynthesis of peppermint monoterpenes and the subcellular locations of the various steps defined, more recent attention has turned to the regulation of metabolism of these constitutively pr ...
B1 - BBS Biology Revision
B1 - BBS Biology Revision

... evaluate the advantages and disadvantages of using enzymes in the home and in industry. You will need to know: a) Protein molecules are made up of long chains of amino acids. These long chains are folded to produce a specific shape that enables other molecules to fit into the protein. Proteins act a ...
Phagosome maturation in unicellular eukaryote Paramecium: the
Phagosome maturation in unicellular eukaryote Paramecium: the

... uring phagocytosis cells internalise large particles that are subsequently degraded in lysosomes that comprise the final stage of the endocytic pathways and intracellular traffic (Kornfeld and Mellman 1989; Gruenberg 2001; Luzio et al. 2003). Digestion capability of phagosomes is acquired in the pro ...
Biology I – 9 weeks review
Biology I – 9 weeks review

... What type of cells in the body does Meiosis take place in? _______________________ How many divisions does a cell go through in Meiosis? ____________________________ What is the process where homologous chromosomes trade parts? _______________________ How many cells are produced after Meiosis? _____ ...
Print - Journal of The Royal Society Interface
Print - Journal of The Royal Society Interface

Cis-elements of protein transport to the plant vacuoles
Cis-elements of protein transport to the plant vacuoles

... vacuoles through the secretory pathway. Three different types of vacuolar sorting signals have been identified, carried by N- or C-terminal propeptides or internal sequences. These signals are needed to target proteins to the different types of vacuoles that can coexist in a single plant cell. A con ...
The role of Cdc14 phosphatases in the control of cell division
The role of Cdc14 phosphatases in the control of cell division

... to perturbation and underscores the difficulty in teasing apart the respective roles of converging regulatory pathways on the process. In mammalian tissue culture cells, the Cdc14 phosphatase appears to play a more central role in cytokinesis. Cells overexpressing or depleted for Cdc14A, one of two ...
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Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
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