Glycerolipid transfer for the building of membranes in plant cells.
... movement through a lipid bilayer takes less than one second for DAG but it takes hours for lipids with larger polar heads [12]. Lipid diffusion between different membranes is fast for single fatty acid chain lipids that easily partition into the aqueous phase, like lysoPC, or lipids containing two ...
... movement through a lipid bilayer takes less than one second for DAG but it takes hours for lipids with larger polar heads [12]. Lipid diffusion between different membranes is fast for single fatty acid chain lipids that easily partition into the aqueous phase, like lysoPC, or lipids containing two ...
Quantitative Analysis of the Gram Reaction
... arranged in a number of groups according to their extractability pattern with regard to the complex. These patterns. suggest the presence of interaction between the cells and ethanol. This interaction may be located at the cell wall. ...
... arranged in a number of groups according to their extractability pattern with regard to the complex. These patterns. suggest the presence of interaction between the cells and ethanol. This interaction may be located at the cell wall. ...
Molecular Affinity and Permeability of Different Molecular Weight
... and coating materials. Chitosan, (1-4)-2-amino-2-deoxy-β-Dglucan, is a biopolymer derived from chitin. Due to the presence of an amino group at carbon-2 of its cellulose-like backbone, chitosan is a cationic polyelectrolyte and soluble in acidic media. As a new functional material, chitosan offers a ...
... and coating materials. Chitosan, (1-4)-2-amino-2-deoxy-β-Dglucan, is a biopolymer derived from chitin. Due to the presence of an amino group at carbon-2 of its cellulose-like backbone, chitosan is a cationic polyelectrolyte and soluble in acidic media. As a new functional material, chitosan offers a ...
Membrane Proteins
... Membrane Structure Is a Bilayer • In 1925, these two physiologists extracted lipids from red blood cells and spread the lipids in a monolayer on a water surface • The film on the water was twice the surface area of the blood cells, suggesting that lipids on the cell surface consisted of two layers • ...
... Membrane Structure Is a Bilayer • In 1925, these two physiologists extracted lipids from red blood cells and spread the lipids in a monolayer on a water surface • The film on the water was twice the surface area of the blood cells, suggesting that lipids on the cell surface consisted of two layers • ...
Insights into the Role of Specific Lipids in the
... yeast (Saccharomyces cerevisiae) cells, enriched in ergosterol, have also been reported (Bagnat et al., 2000, 2001). Recent reports clearly indicate that microdomains enriched in sterols and sphingolipids also exist in the PM of plant cells (Peskan et al., 2000; Mongrand et al., 2004; Bhat and Panst ...
... yeast (Saccharomyces cerevisiae) cells, enriched in ergosterol, have also been reported (Bagnat et al., 2000, 2001). Recent reports clearly indicate that microdomains enriched in sterols and sphingolipids also exist in the PM of plant cells (Peskan et al., 2000; Mongrand et al., 2004; Bhat and Panst ...
Systemic methods for capturing protein–lipid interactions (PDF
... • 25% of the identified lipid interaction proteome is enriched in drug targets, while 12% of total human proteome is drugged. lipid probes may preferentially interact with proteins that can bind other small molecule ligands ...
... • 25% of the identified lipid interaction proteome is enriched in drug targets, while 12% of total human proteome is drugged. lipid probes may preferentially interact with proteins that can bind other small molecule ligands ...
isolation and characterization of membranes from the cells of maize
... Mg2+-ATPase at pH 6-5. The enzymic activity was investigated with endogenous sterols as well as with added /?-sitosterol. The addition of /?-sitosterol enhanced the activity by 2-4-fold in the various membrane fractions. The high recovery (135 %) could be due to dilution of an inhibitor or activatio ...
... Mg2+-ATPase at pH 6-5. The enzymic activity was investigated with endogenous sterols as well as with added /?-sitosterol. The addition of /?-sitosterol enhanced the activity by 2-4-fold in the various membrane fractions. The high recovery (135 %) could be due to dilution of an inhibitor or activatio ...
O–CH 2 - IS MU
... It is antagonist of TXA2, , it is produced by vascular endothelium, it inhibits platelet coagulation and has vasodilatation effects, half-life 3 min. Their equilibrated effects takes part in platelet coagulation and vasomotor and smooth muscle tone. ...
... It is antagonist of TXA2, , it is produced by vascular endothelium, it inhibits platelet coagulation and has vasodilatation effects, half-life 3 min. Their equilibrated effects takes part in platelet coagulation and vasomotor and smooth muscle tone. ...
Plasma membrane microdomains from hybrid aspen cells are
... heterogeneous populations of rafts that reflect different functions [8]. Owing to their specific lipid composition and inherent physical properties, lipid rafts are typically isolated by exploiting their resistance to solubilisation by Triton X-100 at 4°C [9]. The resulting detergent-resistant membr ...
... heterogeneous populations of rafts that reflect different functions [8]. Owing to their specific lipid composition and inherent physical properties, lipid rafts are typically isolated by exploiting their resistance to solubilisation by Triton X-100 at 4°C [9]. The resulting detergent-resistant membr ...
Article PDF
... Lipid oxidation is a major cause of deteriorative changes in foods, especially in relation to sensory properties and concerning the formation of potentially harmful compounds. The oxidation process in food lipids involves a complex series of reactions and gives rise to a high number of different com ...
... Lipid oxidation is a major cause of deteriorative changes in foods, especially in relation to sensory properties and concerning the formation of potentially harmful compounds. The oxidation process in food lipids involves a complex series of reactions and gives rise to a high number of different com ...
PDF - BMC Biotechnology
... by CCUG was even more impressive. The sugar uptake was doubled, while the ethanol production almost tripled (Figure 2A). As shown in Figure 2, YE addition affected all of the measured fermentation characteristics to similar extent. Increased ethanol production is partially attributable to the increa ...
... by CCUG was even more impressive. The sugar uptake was doubled, while the ethanol production almost tripled (Figure 2A). As shown in Figure 2, YE addition affected all of the measured fermentation characteristics to similar extent. Increased ethanol production is partially attributable to the increa ...
Stress response in yeast mRNA export factor
... changes in the processing of pre-mRNA may occur and regulate the export competency of mRNA under stressed conditions. It has been reported that splicing is blocked following heat shock (Yost and Lindquist, 1991; Vogel et al., 1995). There is also a possibility that export factors and NPCs affect sel ...
... changes in the processing of pre-mRNA may occur and regulate the export competency of mRNA under stressed conditions. It has been reported that splicing is blocked following heat shock (Yost and Lindquist, 1991; Vogel et al., 1995). There is also a possibility that export factors and NPCs affect sel ...
Review Article GPCRs: Lipid-Dependent Membrane Receptors That
... 3. Lipid Specificity of GPCRs GPCRs are integral membrane proteins with multiple transmembrane passes. The interaction of membrane lipids with these receptors is therefore an important determinant in their structure and function [36, 41–44]. In addition, it has recently been reported that the intera ...
... 3. Lipid Specificity of GPCRs GPCRs are integral membrane proteins with multiple transmembrane passes. The interaction of membrane lipids with these receptors is therefore an important determinant in their structure and function [36, 41–44]. In addition, it has recently been reported that the intera ...
current models for the structure of biological membranes rev iew
... except perhaps that they usually seem to contain substantial amounts of polysaccharides, they will not be considered further in this discussion . Aside from the technical difficulties involved in separating membranes of similar morphology and composition, the recognition of a membrane as to its orig ...
... except perhaps that they usually seem to contain substantial amounts of polysaccharides, they will not be considered further in this discussion . Aside from the technical difficulties involved in separating membranes of similar morphology and composition, the recognition of a membrane as to its orig ...
LIPIDS
... In most eukaryotic cells, triacylglycerols form a separate phase of microscopic, oily droplets in the aqueous cytosol, serving as depots of metabolic fuel. In vertebrates, specialized cells called adipocytes, or fat cells, store large amounts of triacylglycerols as fat droplets that nearly fill the ...
... In most eukaryotic cells, triacylglycerols form a separate phase of microscopic, oily droplets in the aqueous cytosol, serving as depots of metabolic fuel. In vertebrates, specialized cells called adipocytes, or fat cells, store large amounts of triacylglycerols as fat droplets that nearly fill the ...
Structure and mechanism of ATP-dependent phospholipid transporters
... have a comparable size with twelve transmembrane segments in the functional unit. Further, despite differences in overall architecture, both appear to operate by an alternating access mechanism and during transport they might allow access of phospholipids to the internal part of the transmembrane do ...
... have a comparable size with twelve transmembrane segments in the functional unit. Further, despite differences in overall architecture, both appear to operate by an alternating access mechanism and during transport they might allow access of phospholipids to the internal part of the transmembrane do ...
Lipid rafts
... It is important to note, cholesterol may regulate protein function not only through altering lipid rafts but also by direct interactions with the proteins. However, it is very challenging to discriminate between these possibilities for any specific type of protein because it is unreasonable to test ...
... It is important to note, cholesterol may regulate protein function not only through altering lipid rafts but also by direct interactions with the proteins. However, it is very challenging to discriminate between these possibilities for any specific type of protein because it is unreasonable to test ...
A cellular backline: specialization of host membranes for defence
... Most plant pathogens infect tissues via an extracellular route. Thus, the cell wall and plasma membrane act as key defence fronts during an attempted pathogen invasion. Pattern recognition receptors (PRRs) that detect the presence of a pathogen threat via pathogen-associated molecular patterns (PAMP ...
... Most plant pathogens infect tissues via an extracellular route. Thus, the cell wall and plasma membrane act as key defence fronts during an attempted pathogen invasion. Pattern recognition receptors (PRRs) that detect the presence of a pathogen threat via pathogen-associated molecular patterns (PAMP ...
Mechanisms Shaping the Membranes of Cellular Organelles
... topologically by remodeling, a process that occurs most often by fusion or fission. During fusion two separate membranes merge into one, whereas during fission a continuous membrane is divided into two separate ones. For example, ER tubules can fuse with an existing tubule to form a three-way junction ...
... topologically by remodeling, a process that occurs most often by fusion or fission. During fusion two separate membranes merge into one, whereas during fission a continuous membrane is divided into two separate ones. For example, ER tubules can fuse with an existing tubule to form a three-way junction ...
Marginally hydrophobic transmembrane helices shaping membrane protein folding
... other molecules on all sides. The orientations of the molecules at the interface are also more restricted, resulting in a decrease in entropy (7) . Molecules at the surface therefore have a higher energy than those in the bulk, resulting an effective force ”pulling” the surface molecules towards the ...
... other molecules on all sides. The orientations of the molecules at the interface are also more restricted, resulting in a decrease in entropy (7) . Molecules at the surface therefore have a higher energy than those in the bulk, resulting an effective force ”pulling” the surface molecules towards the ...
Isolation and Chemical Characterization of Plasma Membranes from
... The yeast-mycelium transformation in Candida albicans occurs under a variety of conditions and has been shown to be dependent on the nature of the carbon and energy source (Nickerson & Mankowski, I953), the glucose/phosphate ratio (Widra, I 964), the incubation temperature (Chattaway, Holmes & Barlo ...
... The yeast-mycelium transformation in Candida albicans occurs under a variety of conditions and has been shown to be dependent on the nature of the carbon and energy source (Nickerson & Mankowski, I953), the glucose/phosphate ratio (Widra, I 964), the incubation temperature (Chattaway, Holmes & Barlo ...
The Relationship Between the Nature of the Cell Wall
... that the CVI complex formed by mixing solutions of the Gram reagents was completely solubilized in such concentrations of aqueous ethanol. If the CVI is not rendered alcohol-insolubleby being bound to specific chemical constituents present in only Gram-positive organisms then other explanations of t ...
... that the CVI complex formed by mixing solutions of the Gram reagents was completely solubilized in such concentrations of aqueous ethanol. If the CVI is not rendered alcohol-insolubleby being bound to specific chemical constituents present in only Gram-positive organisms then other explanations of t ...
Fungal Lipids: The Biochemistry of Lipid Accumulation
... glycolipids (both glycoglycerolipids and glycosphingolipids), which contain a polar carbohydrate moiety, as these are more easily analyzed separately. Alternatively, the terms "neutral" and "polar" lipids are used to define these groups, but are less exact [6].The most common lipid classes in nature ...
... glycolipids (both glycoglycerolipids and glycosphingolipids), which contain a polar carbohydrate moiety, as these are more easily analyzed separately. Alternatively, the terms "neutral" and "polar" lipids are used to define these groups, but are less exact [6].The most common lipid classes in nature ...
LIPIDS
... Nonessential Fatty Acids – our body can make certain fatty acids so they are not required in the diet Essential Fatty Acids – our bodies ...
... Nonessential Fatty Acids – our body can make certain fatty acids so they are not required in the diet Essential Fatty Acids – our bodies ...
PDF
... which proliferated at the same rate in the presence or absence of the inhibitor. The average cell numbers of morulae cultured from 88 h post hCG for 48 h in the presence of absence of 7-ketocholesterol were 39-8 ±4-9 and 35-5 ±6-8 for control and treated embryos respectively. An attempt was made to ...
... which proliferated at the same rate in the presence or absence of the inhibitor. The average cell numbers of morulae cultured from 88 h post hCG for 48 h in the presence of absence of 7-ketocholesterol were 39-8 ±4-9 and 35-5 ±6-8 for control and treated embryos respectively. An attempt was made to ...
Ethanol-induced non-lamellar phases in phospholipids
The presence of ethanol can lead to the formations of non-lamellar phases also known as non-bilayer phases. Ethanol has been recognized as being an excellent solvent in an aqueous solution for inducing non-lamellar phases in phospholipids. The formation of non-lamellar phases in phospholipids is not completely understood, but it is significant that this amphiphilic molecule is capable of doing so. The formation of non-lamellar phases is significant in biomedical studies which include drug delivery, the transport of polar and non-polar ions using solvents capable of penetrating the biomembrane, increasing the elasticity of the biomembrane when it is being disrupted by unwanted substances (viruses, bacteria, solvents, etc.) and functioning as a channel or transporter of biomaterial.