Membrane Systems of Crab Fibers Departments of Biochemistry and
... into the muscle fiber from its surface and from the walls of the clefts. There were two such tubules (A tubules) in each A band near its ends. Instead of associating structurally with the myofibrils, as do the Z tubules, the A tubules associate with the SR in structures suitably called dyads because ...
... into the muscle fiber from its surface and from the walls of the clefts. There were two such tubules (A tubules) in each A band near its ends. Instead of associating structurally with the myofibrils, as do the Z tubules, the A tubules associate with the SR in structures suitably called dyads because ...
The Digestive System in the Head and Neck
... Sensory Innervation of the Mouth • Roof: The greater palatine and nasopalatine nerves from the maxillary division of the trigeminal nerve • Floor: The lingual nerve (common sensation), a branch of the mandibular division of the trigeminal nerve. • The taste fibers travel in the chorda tympani nerve ...
... Sensory Innervation of the Mouth • Roof: The greater palatine and nasopalatine nerves from the maxillary division of the trigeminal nerve • Floor: The lingual nerve (common sensation), a branch of the mandibular division of the trigeminal nerve. • The taste fibers travel in the chorda tympani nerve ...
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... downregulation of cell-surface tetherin levels [3], and the total level of cellular tetherin are decreased in the presence of Vpu in most cellular systems [15,48–51]. However, whether degradation and downregulation of tetherin are absolutely required for Vpu antagonism of tetherin-mediated restricti ...
... downregulation of cell-surface tetherin levels [3], and the total level of cellular tetherin are decreased in the presence of Vpu in most cellular systems [15,48–51]. However, whether degradation and downregulation of tetherin are absolutely required for Vpu antagonism of tetherin-mediated restricti ...
Traffic into silence: endomembranes and
... destined for degradation becomes ubiquitinated at the plasma membrane, and this signal causes them to be recognized by the ESCRT complex and sorted into the intraluminal vesicles of MVBs. This step is critical for the termination of signaling cascades that continue even after internalization of the ...
... destined for degradation becomes ubiquitinated at the plasma membrane, and this signal causes them to be recognized by the ESCRT complex and sorted into the intraluminal vesicles of MVBs. This step is critical for the termination of signaling cascades that continue even after internalization of the ...
Protein sorting at the ER–Golgi interface
... (Devos et al., 2004; Lee and Goldberg, 2010). However, the arrangement of these different structural elements is distinct for each coat system. Although the tetrameric F-subcomplex shows similarity to the cargo-binding clathrin adaptor–protein (AP) complexes, structural analysis has clearly delineat ...
... (Devos et al., 2004; Lee and Goldberg, 2010). However, the arrangement of these different structural elements is distinct for each coat system. Although the tetrameric F-subcomplex shows similarity to the cargo-binding clathrin adaptor–protein (AP) complexes, structural analysis has clearly delineat ...
The Living World - Chapter 4 - McGraw Hill Higher Education
... Its basic structure is represented by the fluid-mosaic model Phospholipid bilayer with embedded proteins Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display ...
... Its basic structure is represented by the fluid-mosaic model Phospholipid bilayer with embedded proteins Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display ...
Performance - Fuller Laboratories
... the DH82 canine macrophage cell line, as substrate. Antibody detection becomes detectable at approximately the time most dogs begin showing clinical signs, 21-40 days post infection1-2 Due to the wide variety of antigen present on the whole organism by the IFA technique, sensitivity is approximately ...
... the DH82 canine macrophage cell line, as substrate. Antibody detection becomes detectable at approximately the time most dogs begin showing clinical signs, 21-40 days post infection1-2 Due to the wide variety of antigen present on the whole organism by the IFA technique, sensitivity is approximately ...
Seasonal Changes of Plasma Membrane H
... higher plants (Serrano, 1989; Palmgren, 2001). The enzyme generates the proton-motive force that drives the uptake of nutrients such as sugars and ions across the plasma membrane of growing plant cells. Especially the uptake of potassium ions through specific transport proteins has been related to t ...
... higher plants (Serrano, 1989; Palmgren, 2001). The enzyme generates the proton-motive force that drives the uptake of nutrients such as sugars and ions across the plasma membrane of growing plant cells. Especially the uptake of potassium ions through specific transport proteins has been related to t ...
Biosynthesis of Peptidoglycan in Wall plus Membrane Preparations
... by adding 0-2 ml 10% (w/v) sodium dodecyl sulphate (SDS). The suspension was centrifuged for 4 min in a Unipan model 320 microcentrifuge. The clear supernatant fluid was transferred to a cooled centrifuge tube. The SDS, brought out of solution by cooling to 4 "C, was sedimented by centrifuging and t ...
... by adding 0-2 ml 10% (w/v) sodium dodecyl sulphate (SDS). The suspension was centrifuged for 4 min in a Unipan model 320 microcentrifuge. The clear supernatant fluid was transferred to a cooled centrifuge tube. The SDS, brought out of solution by cooling to 4 "C, was sedimented by centrifuging and t ...
Protoplast Culture: definition
... Once the protoplasts have regenerated a cell wall, they undergo cell division and form a callus.This callus can be subcultured. The callus may undergo embryogenesis or organogenesis after about 3-4 weeks, in the correct culture conditions. The ...
... Once the protoplasts have regenerated a cell wall, they undergo cell division and form a callus.This callus can be subcultured. The callus may undergo embryogenesis or organogenesis after about 3-4 weeks, in the correct culture conditions. The ...
"VESICLE IN A BASKET" A Morphological Study of
... control the infolding and fissioning mechanism of the membrane . Marshall (11) and Brandt (12) observed that a stimulus such as positively charged protein given to amoeba sets off an active process of pinocytosis by itself . Also, Friend and Farquhar (13) reported that the formation of coated vesicl ...
... control the infolding and fissioning mechanism of the membrane . Marshall (11) and Brandt (12) observed that a stimulus such as positively charged protein given to amoeba sets off an active process of pinocytosis by itself . Also, Friend and Farquhar (13) reported that the formation of coated vesicl ...
supplementary information
... Supplementary Figure 7: Distinguishing the two strains by flow cytometry. The “cooperator” strain has YFP expressed constitutively by the ADH1 promoter and the “cheater” strain has tdtomato expressed constitutively by the PGK1 promoter. We distinguish the two strains using a Becton Dickinson FACScan ...
... Supplementary Figure 7: Distinguishing the two strains by flow cytometry. The “cooperator” strain has YFP expressed constitutively by the ADH1 promoter and the “cheater” strain has tdtomato expressed constitutively by the PGK1 promoter. We distinguish the two strains using a Becton Dickinson FACScan ...
Peeping in on the cytoskeleton: light microscopy
... noise. Both these contribute to the greatly enhanced depth penetration achieved by TPCM. In addition, the longer red-shifted wavelengths are inherently less damaging to biological specimens than the more energetic shorter wavelengths. The other advantages of TPCM include the lack of pinholes and ass ...
... noise. Both these contribute to the greatly enhanced depth penetration achieved by TPCM. In addition, the longer red-shifted wavelengths are inherently less damaging to biological specimens than the more energetic shorter wavelengths. The other advantages of TPCM include the lack of pinholes and ass ...
Surface CD81 Via Microparticles Release and Intercellular Transfer
... ported a costimulatory effect of anti-CD81 mAbs on human thymocyte differentiation (13). It remains unclear whether treatment of cells with anti-CD81 mAbs disengages CD81 on the surface and inhibits its function or increases its association with other proteins and mimics its natural function (6). Al ...
... ported a costimulatory effect of anti-CD81 mAbs on human thymocyte differentiation (13). It remains unclear whether treatment of cells with anti-CD81 mAbs disengages CD81 on the surface and inhibits its function or increases its association with other proteins and mimics its natural function (6). Al ...
Symmetry, asymmetry, and the cell cycle in plants: known knowns
... et al., 2009). The molecular mechanisms that control the asymmetry of cell divisions have been hypothesized to be tightly coupled to cell cycle timing and progression (Zhong, 2008), as asymmetric divisions often depend on cell cycle regulators and are essential for normal plant development and repro ...
... et al., 2009). The molecular mechanisms that control the asymmetry of cell divisions have been hypothesized to be tightly coupled to cell cycle timing and progression (Zhong, 2008), as asymmetric divisions often depend on cell cycle regulators and are essential for normal plant development and repro ...
Nervous Tissue - Essex County College Faculty Web Server
... • Neurons are electrically excitable due to the voltage difference across their membrane • Communicate with 2 types of electric signals – action potentials that can travel long distances – graded potentials that are local membrane changes only ...
... • Neurons are electrically excitable due to the voltage difference across their membrane • Communicate with 2 types of electric signals – action potentials that can travel long distances – graded potentials that are local membrane changes only ...
Microreviews in Cell and Molecular Biology
... Dynamin A is a representative of the family of dynamin related proteins. With the results we can come to the conclusion that D. discoideum protein shares features, like the tripartite GTP- binding motif, the consensus pattern LPRGSGIVTR, and a high degree of sequence identity. Dynamin B is a nuclear ...
... Dynamin A is a representative of the family of dynamin related proteins. With the results we can come to the conclusion that D. discoideum protein shares features, like the tripartite GTP- binding motif, the consensus pattern LPRGSGIVTR, and a high degree of sequence identity. Dynamin B is a nuclear ...
Molecular Definition of Distinct Cytoskeletal Structures
... It has long been known from the results of ultrastructural studies that complement- and inmmnoglobulin G (IgG)-opsonized particles are phagocytosed differently by macrophages (Kaplan, G. 1977. &and. J. bnmunol. 6:797-807). Complement-opsonized particles sink into the cell, w h e r e a s IgG-coated p ...
... It has long been known from the results of ultrastructural studies that complement- and inmmnoglobulin G (IgG)-opsonized particles are phagocytosed differently by macrophages (Kaplan, G. 1977. &and. J. bnmunol. 6:797-807). Complement-opsonized particles sink into the cell, w h e r e a s IgG-coated p ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... Due to scarcity of organelles which results in clear appearance of cell as in clear salivary duct cell. 3 Clear cell changes may be observed in virtually any benign or malignant tumour of epithelial, mesenchymal, melanotic and hematopoietic derivation not to be attributed to variable etiologies.3 An ...
... Due to scarcity of organelles which results in clear appearance of cell as in clear salivary duct cell. 3 Clear cell changes may be observed in virtually any benign or malignant tumour of epithelial, mesenchymal, melanotic and hematopoietic derivation not to be attributed to variable etiologies.3 An ...
Plant physiology
... in cytoplasmatic lipid droplets (CLDs; Murphy, 2012), although in some cases, such as in Chlamydomonas reinhardtii starchless mutants, they also accumulate in chloroplasts (Fan et al., 2011; Goodson et al., 2011). Recent studies indicate that the CLDs are closely associated with ER membranes and pos ...
... in cytoplasmatic lipid droplets (CLDs; Murphy, 2012), although in some cases, such as in Chlamydomonas reinhardtii starchless mutants, they also accumulate in chloroplasts (Fan et al., 2011; Goodson et al., 2011). Recent studies indicate that the CLDs are closely associated with ER membranes and pos ...
Association of Calmodulin and an Unconventional Myosin with the
... a density of 2 • 106/ml, and a drop of cell suspension ('~100 #1) was placed on a coverslip. After 5-10 min, the coverslip was dipped briefly into 1% formaldehyde in methanol (-15~ t s) and then immersed in extraction buffer containing 10 mM sodium phosphate (pH Z4), 150 mM NaC1, and 0.25% Triton X- ...
... a density of 2 • 106/ml, and a drop of cell suspension ('~100 #1) was placed on a coverslip. After 5-10 min, the coverslip was dipped briefly into 1% formaldehyde in methanol (-15~ t s) and then immersed in extraction buffer containing 10 mM sodium phosphate (pH Z4), 150 mM NaC1, and 0.25% Triton X- ...
Knee joint
... articular surfaces(fermoral and tibial condyles) ,outer margins of the menisci and the posterior surface of patella ,reflects anteriorly into the intercondylar region to cover the cruciate ligaments excluding them from the articular cavity , but they are enclosed within the fibrous membrane Anterior ...
... articular surfaces(fermoral and tibial condyles) ,outer margins of the menisci and the posterior surface of patella ,reflects anteriorly into the intercondylar region to cover the cruciate ligaments excluding them from the articular cavity , but they are enclosed within the fibrous membrane Anterior ...
Which of the following free surfaces lack(s) epithelia:
... d. dense parallel collagenous fibers e. both areolar tissue and dense parallel collagenous fibers ...
... d. dense parallel collagenous fibers e. both areolar tissue and dense parallel collagenous fibers ...
Characterization of Citrate Transport through the Plasma Membrane
... at least two possible explanations for the higher activities found in the microsomes of the IPG cells. One is that IPG cells contain higher activities in this enzyme in the plasma membrane, and the other is that the relative amounts of plasma membrane in the microsomes could be higher in the IPG tha ...
... at least two possible explanations for the higher activities found in the microsomes of the IPG cells. One is that IPG cells contain higher activities in this enzyme in the plasma membrane, and the other is that the relative amounts of plasma membrane in the microsomes could be higher in the IPG tha ...
23. larynx
... Larynx It is the organ that is responsible for voice production and provides a protective sphincter at the inlet of the air passages. Above it opens into the laryngopharynx and below it is continuous with trachea. It’s framework is made up of cartilages which is connected by membranes and ligament a ...
... Larynx It is the organ that is responsible for voice production and provides a protective sphincter at the inlet of the air passages. Above it opens into the laryngopharynx and below it is continuous with trachea. It’s framework is made up of cartilages which is connected by membranes and ligament a ...
Cell membrane
The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins. Cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity and cell signalling and serve as the attachment surface for several extracellular structures, including the cell wall, glycocalyx, and intracellular cytoskeleton. Cell membranes can be artificially reassembled.