
	Where results make sense

Topic: Endocytosis

Related Topics

Dendritic cell

Pinocytosis

Cell (biology)

Biological membrane

Class II histocompatibility molecule

Cytotoxic T cell

Cell membrane

Plasma membrane

Vesicle

Phagocytosis

Cluster of differentiation

Macrophage

Antigen

White blood cell

Organelle

	Endocytosis - Specialized phagocytic cells engulf large particles
		During endocytosis, the plasma membrane of the cell forms a pocket around the material to be internalized.
		There are two main types of endocytosis that are distinguished by the size of the vesicle formed and the cellular machinery involved.
		Receptor-mediated endocytosis was discovered by Michael Brown and Joseph Goldstein, who were investigating the internalization of cholesterol by cells from the bloodstream.
	www.biologyreference.com /Dn-Ep/Endocytosis.html (1061 words)

	Endocytosis - Wikipedia, the free encyclopedia
		Endocytosis is a process whereby cells absorb material (molecules such as proteins) from outside by engulfing it with their cell membrane.
		It is used by all cells of the body because most substances important to them are polar and consist of big molecules, and thus cannot pass through the hydrophobic plasma membrane.
		Endocytosis is the opposite of exocytosis, and always involves the formation of a vesicle from part of the cell membrane.
	en.wikipedia.org /wiki/Endocytosis (347 words)

	Endocytosis and Exocytosis
		The student will be able to describe endocytosis, including phagocytosis and pinocytosis, and contrast it with exocytosis.
		ENDO = IN Endocytosis is a process for moving items that are outside of the cell into the cytoplasm of the cell.
		Both endocytosis and exocytosis vary from the other forms of membrane transport, because materials do not cross through the lipid bilayer.
	www.coolschool.ca /lor/BI12/unit4/U04L05.htm (377 words)

	Endocytosis
		Receptor-mediated endocytosis is many thousand times more efficient than simple pinocytosis in enabling the cell to acquire the macromolecules it needs.
		The portion of the plasma membrane with bound LDL is internalized by endocytosis.
		This is the organism that led to the discovery that genes are DNA.
	users.rcn.com /jkimball.ma.ultranet/BiologyPages/E/Endocytosis.html (1114 words)

	Endocytosis Summary
		With receptor-mediated endocytosis the substances which are to be transported into the cell first must bind to specific sites or receptor proteins on the outside of the cell.
		In this process, which is almost the opposite of endocytosis, the vacuole or vesicle joins the cell membrane and releases substances to the outside of the cell.
		Endocytosis is a process whereby cells absorb material (molecules such as proteins) from outside by engulfing it with their cell membrane.
	www.bookrags.com /Endocytosis (737 words)

	davis lab > projects > vesicle recycling
		For example, proteins that are required for vesicle endocytosis such as clathrin are also essential for cell viability, preventing a standard genetic analysis.
		Other proteins participate in both exocytosis and endocytosis, and standard genetic approaches are unable to dissociate the exocytic from endocytic functions for these molecules.
		Upon vesicle reformation, the GFP remains fluorescent and is subsequently quenched during the reacidification associated with the loading of neurotransmitter into the synaptic vesicle.
	www.ucsf.edu /davislab/projects/endocytosis.htm (760 words)

	endocytosis - Encyclopedia.com
		endocytosis, in biology, process by which substances are taken into the cell.
		When the cell membrane comes into contact with a suitable food, a portion of the cell cytoplasm surges forward to meet and surround the material and a depression forms within the cell wall.
		There are two types of endocytosis: pinocytosis, the engulfing and digestion of dissolved substances, and phagocytosis, the engulfing and digestion of microscopically visible particles.
	www.encyclopedia.com /doc/1E1-endocyto.html (671 words)

	BioMed Central \| Full text \| A critical role for endocytosis in Wnt signaling
		MDC is believed to inhibit clathrin-mediated endocytosis by stabilizing nascent clathrin-coated vesicles and preventing uncoating [10], presumably reducing the availability of free clathrin to assemble at the plasma membrane.
		The few studies examining the potential endocytosis and trafficking of Wnt proteins have considered this as a mechanism for the formation of the Wnt morphogen gradient in the embryo or the termination of the pathway [5,6].
		In an elegant study in the Drosophila embryo, a horseradish peroxidase-conjugated Wg was shown to be degraded by receptive cells in a manner sensitive to chloroquine and dependent upon deep orange, suggesting that the ligand is trafficked to the lysosomes [5].
	www.biomedcentral.com /1471-2121/7/28 (4595 words)

	Receptor-Mediated Endocytosis and the Sorting of Internalized Proteins (Site not responding. Last check: 2007-10-22)
		In receptor-mediated endocytosis, a specific receptor on the cell surface binds tightly to the extracellular macromolecule (the ligand) that it recognizes; the plasma-membrane region containing the receptor-ligand complex then undergoes endocytosis, becoming a transport vesicle.
		After endocytosis, the LDL particles are transported to lysosomes where lysosomal hydrolases degrade the apo-B protein to amino acids and cleave the cholesterol esters to cholesterol and fatty acids.
		This process of transcellular transport, which combines endocytosis and exocytosis, also can be employed to import an extracellular ligand from one side of a cell, transport it across the cytoplasm, and secrete it from the plasma membrane at the opposite side.
	www.ncbi.nlm.nih.gov /books/bv.fcgi?call=bv.View..ShowSection&rid=mcb.section.4862 (2897 words)

	Highbeam Encyclopedia - Search Results for endocytosis
		endocytosis The mechanism by which a cell engulfs large material by the invagination of the cell membrane to form a vesicle or vacuole.
		phagocytosis A form of endocytosis in which a cell membrane invaginates and encloses externally derived, solid material within a vacuole, without disrupting the continuity of the cell surface.
		pinocytosis A form of endocytosis in which the material enclosed is a liquid and there is no fusion with a lysosome.
	www.encyclopedia.com /SearchResults.aspx?Q=endocytosis (569 words)

	Cluster of Differentiation Antigen 4 () Endocytosis and Adaptor Complex Binding Require Activation of the Endocytosis ...
		Open symbols indicate the constitutive endocytosis of constructs in the absence of PMA, and solid symbols indicate endocytosis in the presence of 100 ng/ml PMA.
		Endocytosis of K418 CD4 S to E substitutions (Figure 1) was measured as described in Figure 2A.
		Phorbol esters and SDF-1 induce rapid endocytosis and down-modulation of the chemokine receptor CXCR4.
	www.molbiolcell.org /cgi/content/full/10/3/677 (7343 words)

	Tyrosine Phosphorylation Regulates Rapid Endocytosis in Adrenal Chromaffin Cells -- Nucifora and Fox 19 (22): 9739 -- ...
		of endocytosis is lethal in the Drosophila mutant shibire as a
		Exocytosis and rapid endocytosis were monitored using the capacitance technique on whole-cell patch-clamped bovine adrenal chromaffin cells.
		Kuromi H, Yoshihara M, Kidokoro Y (1997) An inhibitory role of calcineurin in endocytosis of synaptic vesicles at nerve terminals of Drosophila larvae.
	www.jneurosci.org /cgi/content/full/19/22/9739 (5154 words)

	The process of endocytosis (Site not responding. Last check: 2007-10-22)
		Endocytosis provides a route of entry into the cell, for substances that benefit the cell, like nutrients, and for agents that do harm, like viruses, bacterial endotoxins, and some bacterial cells themselves.
		For this, we are using a model system, studying the endocytosis of a G protein-coupled receptor in the yeast Saccharomyces cerevisiae.
		When transplanted to a protein that is normally stable at the cell surface, this signal directs the ubiquitination and endocytosis of this protein as well.
	www.med.wayne.edu /surgery/faculty/davis.htm (750 words)

	Caveolae/raft-dependent endocytosis -- Nabi and Le 161 (4): 673 -- The Journal of Cell Biology
		Caveolin-1 is a negative regulator of caveolae-mediated endocytosis to the endoplasmic reticulum.
		Caveolar endocytosis of simian virus 40 is followed by brefeldin A-sensitive transport to the endoplasmic reticulum, where the virus disassembles.
		Endocytosis from coated pits of Shiga toxin: a glycolipid-binding protein from Shigella dysenteriae 1.
	www.jcb.org /cgi/content/full/161/4/673 (4455 words)

	Endocytosis in identified rat corticotrophs -- Lee and Tse 533 (2): 389 -- The Journal of Physiology Online
		The time constant of 'slow' endocytosis was 7.0 ± 0.8 s (mean of 6 exo/endocytotic events from 3 cells) and the average efficiency of endocytosis was 0.97 ± 0.08.
		The average time constant of 'slow' endocytosis after at least 5 min of dialysis with cyclosporin A was 6.2 ± 0.6 s and the average efficiency of endocytosis was 1.1 ± 0.1 (mean of 8 exo/endocytotic events from 5 cells).
		The average time constant of 'slow' endocytosis in these cells was 6.1 ± 0.7 s and the efficiency of endocytosis was 1.0 ± 0.1 (mean of 7 events from 4 cells).
	jp.physoc.org /cgi/content/full/533/2/389 (9933 words)

	Endocytosis Resumes during Late Mitosis and Is Required for Cytokinesis -- Schweitzer et al. 280 (50): 41628 -- Journal ...
		Endocytosis Resumes during Late Mitosis and Is Required for Cytokinesis -- Schweitzer et al.
		During anaphase and early telophase, internalized ligand is observed in the polar regions of the dividing cell but not in the region of the cleavage furrow.
		New endocytosis at the ingressed cleavage furrow may help to complete the final stages of cytokinesis and to balance membrane addition and retrieval in the midbody region.
	www.jbc.org /cgi/content/full/280/50/41628 (4665 words)

	Is fluid-phase endocytosis conserved in hepatocytes of species acclimated and adapted to different temperatures? -- ...
		Endocytosis was sensitive to both acute and acclimatory changes in temperature (Fig.
		Endocytosis was sensitive to acute changes in temperature in hepatocytes from both trout and tilapia, although to different
		Fluid endocytosis in isolated rat parenchymal and non-parenchymal liver cells.
	ajpregu.physiology.org /cgi/content/full/278/2/R529 (4470 words)

	Receptor Mediated Endocytosis
		Receptor mediated endocytosis is a process by which cells internalize molecules or viruses.
		Thus, this rapid uptake coupled with the absence of label in the presence of competing ligand is a sign that this is receptor mediated.
		Finally, temperature is important to the overall patching and capping process discussed during the lecture on membranes.
	www.cytochemistry.net /Cell-biology/recend.htm (1978 words)

	endocytosis (Site not responding. Last check: 2007-10-22)
		A cell engulfs a foreign substance through endocytosis, a form of active transport.
		During endocytosis, the cell membrane puckers up, forms a pouch around materials outside the cell, and pinches off to become a vesicle.
		Nichols B. Caveosomes and endocytosis of lipid rafts.
	www.humpath.com /article.php3?id_article=813 (160 words)

	OUP: Endocytosis: Marsh
		Endocytosis is a key feature of virtually all eukaryotic cells.
		Roles for endocytosis in immune responses, transcellular transport, signal transduction, neural function and a variety of pathological conditions are now well established.
		In this volume, experts in their respective fields discuss the molecular mechanisms that underlie endocytosis and the fate of endocytic vesicles in cells.
	www.oup.co.uk /isbn/0-19-963851-9 (282 words)

	Calcium influx selects the fast mode of endocytosis in the synaptic terminal of retinal bipolar cells -- Neves et al., ...
		Calcium buffers caused a proportion of synaptic vesicles to be retrieved by slow endocytosis.
		Larger Ca currents (red traces) were associated with a larger proportion of fast endocytosis (85% and 63% in response to currents of 450 and 560 pA, respectively).
		The time course of endocytosis is also compared with the fall in [Ca ], estimated from the Ca -activated tail current using a conversion factor of 9 pA/µM (blue trace).
	www.pnas.org /cgi/content/full/261311698v1 (4683 words)

	Endocytosis of the Nipah Virus Glycoproteins -- Vogt et al. 79 (6): 3865 -- The Journal of Virology
		Endocytosis of the Nipah Virus Glycoproteins -- Vogt et al.
		Endocytosis of singly expressed or coexpressed NiV F and G proteins.
		Endocytosis and recycling of varicella-zoster virus Fc receptor glycoprotein gE: internalization mediated by a YXXL motif in the cytoplasmic tail.
	jvi.asm.org /cgi/content/full/79/6/3865 (3291 words)

	Membrane Expansion Increases Endocytosis Rate during Mitosis -- Raucher and Sheetz 144 (3): 497 -- The Journal of Cell ...
		Mitosis in mammalian cells is accompanied by a dramatic inhibition of endocytosis.
		Tether force and endocytosis rate are expressed as a percentage of the value of interphase cells.
		The magnitude of membrane tension is denoted by the thickness of the arrow and endocytosis is represented by the small vesicles inside the cell.
	www.jcb.org /cgi/content/full/144/3/497 (5702 words)

	Endocytosis
		This orientation is expected to be consistent with a requirement to move the vesicle away from the membrane after scission.
		Ayscough, K. (2000) Endocytosis and the development of cell polarity in yeast require a dynamic F-actin cytoskeleton., Curr.Biol.
		Yang, W. and Cerione, R. Endocytosis: Is dynamin a 'blue collar" or "white collar' worker?, Curr.Biol.
	www.bms.ed.ac.uk /research/others/smaciver/Cyto-Topics/Endocytosis.htm (767 words)

	Exocytosis and Endocytosis -- Battey et al. 11 (4): 643 -- THE PLANT CELL
		Shown is a speculative diagram that incorporates the suggested pathways to and from the plasma membrane in plants.
		Egner, R., and Kuchler, K. (1996) The yeast multidrug transporter PDR5 of the plasma membrane is ubiquitinated prior to endocytosis and degradation in the vacuole.
		Lazzaro, M.D., and Thomson, W.W. (1992) Endocytosis of lanthanum nitrate in the organic acid–secreting trichomes of chickpea (Cicer arietinum).
	www.plantcell.org /cgi/content/full/11/4/643 (7028 words)

Try your search on: Qwika (all wikis)