Adherence of Pathogenic Mycoplasmas to Host Cells
... by the intensive research on the possible role of mycoplasmas as cofactors in AIDS activation, showed mycoplasmas to be located also intracellularly. This feature is particularly prominent in a new human mycoplasma isolated from AIDS patients, and named accordingly M. penetrans (Lo et al., 1993). Pe ...
... by the intensive research on the possible role of mycoplasmas as cofactors in AIDS activation, showed mycoplasmas to be located also intracellularly. This feature is particularly prominent in a new human mycoplasma isolated from AIDS patients, and named accordingly M. penetrans (Lo et al., 1993). Pe ...
molecular mechanisms of weak organic acid preservative
... its normal physiological range. To maintain pHi homeostasis, bacteria and fungi have developed several mechanisms that act concertedly (reviewed in [11]). In this, the plasma membrane ATP-driven proton efflux pump Pma1 is crucial for pH homeostasis upon combating weak-acid stress. This important com ...
... its normal physiological range. To maintain pHi homeostasis, bacteria and fungi have developed several mechanisms that act concertedly (reviewed in [11]). In this, the plasma membrane ATP-driven proton efflux pump Pma1 is crucial for pH homeostasis upon combating weak-acid stress. This important com ...
Cell adhesion in plants is under the control of
... esmd1-1 (Fig. 3B). This suggests that a pectin-related signal is induced in quasimodo, and repressed by esmd1, which interestingly correlates with the loss and restoration of cell adhesion, respectively. Overall, and as proposed in Fig. 4, our results show that the state of cell adhesion is not a di ...
... esmd1-1 (Fig. 3B). This suggests that a pectin-related signal is induced in quasimodo, and repressed by esmd1, which interestingly correlates with the loss and restoration of cell adhesion, respectively. Overall, and as proposed in Fig. 4, our results show that the state of cell adhesion is not a di ...
Study Guide for Chapter 1 Test
... chromatin, chromosome, nucleolus, ribosome, endoplasmic reticulum, Golgi apparatus, lysosome, vacuole, mitochondrion, chloroplast, cytoskeleton, centriole, cell membrane, cell wall, phospholipids bilayer, concentration, diffusion, equilibrium, osmosis, isotonic, hypertonic, hypotonic, facilitated di ...
... chromatin, chromosome, nucleolus, ribosome, endoplasmic reticulum, Golgi apparatus, lysosome, vacuole, mitochondrion, chloroplast, cytoskeleton, centriole, cell membrane, cell wall, phospholipids bilayer, concentration, diffusion, equilibrium, osmosis, isotonic, hypertonic, hypotonic, facilitated di ...
The extracellular matix (ECM) Three types of molecules are
... Three types of molecules are abundant in the extracellular matrix of all tissues: 1. proteoglycan: a glycoproteins, high viscosity, it can bound variety of ECMs 2. Collagen fibers: provide mechanical strength and resilience. 3. Soluble multiadhesive matrix proteins: bind to and cross-link cell-surfa ...
... Three types of molecules are abundant in the extracellular matrix of all tissues: 1. proteoglycan: a glycoproteins, high viscosity, it can bound variety of ECMs 2. Collagen fibers: provide mechanical strength and resilience. 3. Soluble multiadhesive matrix proteins: bind to and cross-link cell-surfa ...
Plant organelle proteomics
... Mitochondria and plastids can be obtained relatively purely, and there are several excellent databases of proteomic identified proteins from these organelles [32,33]. There are promising purification approaches to isolating plastids from specialized cell types which may allow studies of plastid subt ...
... Mitochondria and plastids can be obtained relatively purely, and there are several excellent databases of proteomic identified proteins from these organelles [32,33]. There are promising purification approaches to isolating plastids from specialized cell types which may allow studies of plastid subt ...
Water and electrolyte د. احمد حسين جاسم
... membranes. Maintenance of the cation gradients across cell membranes is essential for many cell processes, including the excitability of conducting tissues such as nerve and muscle. The difference in protein content between the plasma and the interstitial fluid compartment is maintained by the imper ...
... membranes. Maintenance of the cation gradients across cell membranes is essential for many cell processes, including the excitability of conducting tissues such as nerve and muscle. The difference in protein content between the plasma and the interstitial fluid compartment is maintained by the imper ...
Chapter 4 Review Questions
... 39. The statement “Cells are produced only from existing cells” is part of the ____________________. 40. The ratio of surface area to ____________________ puts limitations on a cell’s size. 41. Eukaryotic cells are much larger and have more specialized functions than prokaryotic cells because they c ...
... 39. The statement “Cells are produced only from existing cells” is part of the ____________________. 40. The ratio of surface area to ____________________ puts limitations on a cell’s size. 41. Eukaryotic cells are much larger and have more specialized functions than prokaryotic cells because they c ...
Get PDF file - Botanik in Bonn
... organelles, and their simple architecture was taken as evidence for their ancient or archaic nature. Nowadays, however, several genome-based data have emerged which suggest just the opposite – that the contemporary prokaryotic cells are not so ancient and primitive after all.10,11 More importantly, ...
... organelles, and their simple architecture was taken as evidence for their ancient or archaic nature. Nowadays, however, several genome-based data have emerged which suggest just the opposite – that the contemporary prokaryotic cells are not so ancient and primitive after all.10,11 More importantly, ...
Stringent Response Changes Cell Membrane Permeability in
... Taken together, these data suggest that the stringent response causes a decrease in membrane fluidity resulting in lower permeability. Findings suggest that ppGpp accumulation due to the stringent response may lower cell membrane permeability which can possibly aid in antibiotic crosstolerance via a ...
... Taken together, these data suggest that the stringent response causes a decrease in membrane fluidity resulting in lower permeability. Findings suggest that ppGpp accumulation due to the stringent response may lower cell membrane permeability which can possibly aid in antibiotic crosstolerance via a ...
Endocytosis Via Caveolae
... unusual topology in that the cytosolic N- and C-terminal domains are cytosolic connected by a hydrophobic sequence that is buried in the membrane but does not span the bilayer (23,24). Caveolins are palmitoylated in the C-terminal segment (25), they can be phosphorylated on tyrosine residues (26), t ...
... unusual topology in that the cytosolic N- and C-terminal domains are cytosolic connected by a hydrophobic sequence that is buried in the membrane but does not span the bilayer (23,24). Caveolins are palmitoylated in the C-terminal segment (25), they can be phosphorylated on tyrosine residues (26), t ...
Diffusion Modeling of snRNP Dynamics
... HeLa cells were co-transfected with two kinds of fluorescently labeled proteins. The first one was the SART3 protein tagged with the cyan fluorescent protein (SART3:CFP). Because the SART3 is known to accumulate in CBs, fluorescence of the SART3:CFP construct served for visualization and localizatio ...
... HeLa cells were co-transfected with two kinds of fluorescently labeled proteins. The first one was the SART3 protein tagged with the cyan fluorescent protein (SART3:CFP). Because the SART3 is known to accumulate in CBs, fluorescence of the SART3:CFP construct served for visualization and localizatio ...
Full Text - Genes | Genomes | Genetics
... changes and cell rearrangements that drive the elongation of the salivary gland during midembryogenesis. Interestingly, these developmental events occur at a time prior to the formation of the occluding junction, when SJ proteins localize along the lateral membrane and have not yet coalesced into th ...
... changes and cell rearrangements that drive the elongation of the salivary gland during midembryogenesis. Interestingly, these developmental events occur at a time prior to the formation of the occluding junction, when SJ proteins localize along the lateral membrane and have not yet coalesced into th ...
A tour of the cell - The Open University
... The subcellular components can then be recovered by centrifugation. The cell homogenate is dispensed into centrifuge tubes which are placed into a rotating holder (known as a rotor) that fits into the centrifuge. As the rotor turns, particles suspended in the homogenate migrate towards the bottom of ...
... The subcellular components can then be recovered by centrifugation. The cell homogenate is dispensed into centrifuge tubes which are placed into a rotating holder (known as a rotor) that fits into the centrifuge. As the rotor turns, particles suspended in the homogenate migrate towards the bottom of ...
paramecium notes 13 highlighted
... Paramecium are unicellular protozoans classified in the Kingdom Protista. Recall that protozoans are animal-like protists, named that way because they move and eat just like animals only they are made of a single cell. Paramecia live in quiet or stagnant ponds and feed on algae scum and other microo ...
... Paramecium are unicellular protozoans classified in the Kingdom Protista. Recall that protozoans are animal-like protists, named that way because they move and eat just like animals only they are made of a single cell. Paramecia live in quiet or stagnant ponds and feed on algae scum and other microo ...
paramecium notes 14
... Paramecium are unicellular protozoans classified in the Kingdom Protista. Recall that protozoans are animal-like protists, named that way because they move and eat just like animals only they are made of a single cell. Paramecia live in quiet or stagnant ponds and feed on algae scum and other microo ...
... Paramecium are unicellular protozoans classified in the Kingdom Protista. Recall that protozoans are animal-like protists, named that way because they move and eat just like animals only they are made of a single cell. Paramecia live in quiet or stagnant ponds and feed on algae scum and other microo ...
Sticking the Landing: Probing the Roles of LORELEI
... the pollen tube and synergid cell independent of its intracellular role in the synergid. By contrast, such pollen harboring LREcYFP failed to rescue the pollen tube reception and reduced seed set defects in lre fer double mutants, indicating that both LRE and FER are required at the pollen tube/ syn ...
... the pollen tube and synergid cell independent of its intracellular role in the synergid. By contrast, such pollen harboring LREcYFP failed to rescue the pollen tube reception and reduced seed set defects in lre fer double mutants, indicating that both LRE and FER are required at the pollen tube/ syn ...
analysis of membrane protein dimerization
... Obtaining an estimate for an equilibrium constant of an interacting system requires that the species in question reversibly associate with each other on the time scale of the experiment. In analysis of sedimentation equilibrium data, such reversibility will be reflected as a constant value for the e ...
... Obtaining an estimate for an equilibrium constant of an interacting system requires that the species in question reversibly associate with each other on the time scale of the experiment. In analysis of sedimentation equilibrium data, such reversibility will be reflected as a constant value for the e ...
Secretion of Beta-Lactamase Requires the Carboxyl End of the Protein.
... remain soluble in the cytoplasm. These results show that the carboxy-terminal amino acid sequence (at least) of /Llactamase is essential to successful transport across the cytoplasmic membrane, and suggest that the presence (and probably also the act of removal) of the signal sequence does not suffi ...
... remain soluble in the cytoplasm. These results show that the carboxy-terminal amino acid sequence (at least) of /Llactamase is essential to successful transport across the cytoplasmic membrane, and suggest that the presence (and probably also the act of removal) of the signal sequence does not suffi ...
Doehrty-McMahon 2009
... CME is the only major mechanism by which endocytosis occurs, for many years, the term receptor-mediated endocytosis (RME) has been used, often synonymously with CME. Owing to the clarity beginning to emerge from studies of endocytic events, we urge abandonment of the term RME because methods are rea ...
... CME is the only major mechanism by which endocytosis occurs, for many years, the term receptor-mediated endocytosis (RME) has been used, often synonymously with CME. Owing to the clarity beginning to emerge from studies of endocytic events, we urge abandonment of the term RME because methods are rea ...
Disruption of CEP290 microtubule/membrane-binding domains
... from aa 257 to 292 was predicted to form a canonical amphipathic α-helix (Figure 3B). Such helices have been shown to be critical in mediating robust interactions between peripheral membrane proteins and various cellular membranes (35). Comparing this stretch of the protein across a variety of speci ...
... from aa 257 to 292 was predicted to form a canonical amphipathic α-helix (Figure 3B). Such helices have been shown to be critical in mediating robust interactions between peripheral membrane proteins and various cellular membranes (35). Comparing this stretch of the protein across a variety of speci ...
Heat stress induces different forms of cell death in sea
... different from controls until 1 h after exposure, and only at the highest temperature (33.51C; Figure 4c). Moreover, significant effects in the zooxanthellae at the lowest treatment temperature (29.51C) were not detected until 18 h exposure. Overall, it is clear that the ectoderm cells, which do not ...
... different from controls until 1 h after exposure, and only at the highest temperature (33.51C; Figure 4c). Moreover, significant effects in the zooxanthellae at the lowest treatment temperature (29.51C) were not detected until 18 h exposure. Overall, it is clear that the ectoderm cells, which do not ...
Quaternary ammonium surfactant structure determines selective
... their function,11,12 which can result in cell death. A surfactant’s concentration in cell membranes is, therefore, an important determinant of its toxic effects. Surfactants are driven into biological membranes and all similar amphiphilic aggregates primarily by the hydrophobic effect. At concentrat ...
... their function,11,12 which can result in cell death. A surfactant’s concentration in cell membranes is, therefore, an important determinant of its toxic effects. Surfactants are driven into biological membranes and all similar amphiphilic aggregates primarily by the hydrophobic effect. At concentrat ...
BETA LACTAM ANTIBIOTICS AND OTHER INHIBITORS OF CELL
... Gram-negative Bacterial Membrane Structure • Gram-negative bacteria are surrounded by two membranes. • The outer membrane functions as an efficient permeability barrier containing lipopolysaccharides (LPS) and porins. ...
... Gram-negative Bacterial Membrane Structure • Gram-negative bacteria are surrounded by two membranes. • The outer membrane functions as an efficient permeability barrier containing lipopolysaccharides (LPS) and porins. ...
BETA LACTAM ANTIBIOTICS AND OTHER INHIBITORS OF CELL
... Gram-negative Bacterial Membrane Structure • Gram-negative bacteria are surrounded by two membranes. • The outer membrane functions as an efficient permeability barrier containing lipopolysaccharides (LPS) and porins. ...
... Gram-negative Bacterial Membrane Structure • Gram-negative bacteria are surrounded by two membranes. • The outer membrane functions as an efficient permeability barrier containing lipopolysaccharides (LPS) and porins. ...
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.