D:Int Agrophysics -2Cybulskacybulska.vp - Research
... which constitute more than 90% of their dry mass. Polysaccharides of cell walls are cellulose (15-30% d.m.), pectin (about 30% d.m.) and hemicelluloses (about 25% d.m.) (Taiz and Zeiger, 2002). Spatial structure of bacterial cellulose microfibrils which is produced by Gluconacetobacter xylinus is co ...
... which constitute more than 90% of their dry mass. Polysaccharides of cell walls are cellulose (15-30% d.m.), pectin (about 30% d.m.) and hemicelluloses (about 25% d.m.) (Taiz and Zeiger, 2002). Spatial structure of bacterial cellulose microfibrils which is produced by Gluconacetobacter xylinus is co ...
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... The understanding of the structural aspects of the plant cell wall has been inspired and guided by biochemical analysis. In our study, simple measurements of the sugar composition of cell walls from the protoplasts suggested gradual changes in the proportion of cell wall polysaccharides, such as pec ...
... The understanding of the structural aspects of the plant cell wall has been inspired and guided by biochemical analysis. In our study, simple measurements of the sugar composition of cell walls from the protoplasts suggested gradual changes in the proportion of cell wall polysaccharides, such as pec ...
The membrane form of the DNA repair protein Ku interacts at the cell
... suggests that this protein is serving additional roles besides its main function in the DNA DSB repair. In fact, the membrane form of Ku has been shown to be involved in the regulation of cell–cell interaction (Teoh et al, 1998; Lynch et al, 2001) and in tumor cells when exposed to hypoxia to partic ...
... suggests that this protein is serving additional roles besides its main function in the DNA DSB repair. In fact, the membrane form of Ku has been shown to be involved in the regulation of cell–cell interaction (Teoh et al, 1998; Lynch et al, 2001) and in tumor cells when exposed to hypoxia to partic ...
A Model for Cell Proliferation in a Developing Organism
... The process (X (t), t ≥ 0) is a continuous-time Markov chain. Consider a particular marked cell. Is its position I (t) at time t Markovian? Yes. If that cell is in position i, it moves to the right at rate λi. The position of any particular marked cell evolves as a Yule Process, that is, a pure-birt ...
... The process (X (t), t ≥ 0) is a continuous-time Markov chain. Consider a particular marked cell. Is its position I (t) at time t Markovian? Yes. If that cell is in position i, it moves to the right at rate λi. The position of any particular marked cell evolves as a Yule Process, that is, a pure-birt ...
Slow Changes in the Availability of Voltage
... cause a decrement in the availability of ion channels. ‘‘Long enough’’ being measured in terms of (a(v) + b(v))−1, which is the characteristic time of the C ⇔ O relaxation; the depolarizing voltage should be such that a(v)/(a(v) + b(v)), the steady-state probability of the channels to be found in th ...
... cause a decrement in the availability of ion channels. ‘‘Long enough’’ being measured in terms of (a(v) + b(v))−1, which is the characteristic time of the C ⇔ O relaxation; the depolarizing voltage should be such that a(v)/(a(v) + b(v)), the steady-state probability of the channels to be found in th ...
Assay of Enzymes with Insoluble or Unknown - Beilstein
... relocated elsewhere in the list. A recent proposal in the list, not yet implemented, is to invoke the classification EC 1.x.98.z for enzymes where the acceptor is known but for which there is no suitable sub-subclass, and EC 1.97.y.z for enzymes where the donor is known but for which there is no sub ...
... relocated elsewhere in the list. A recent proposal in the list, not yet implemented, is to invoke the classification EC 1.x.98.z for enzymes where the acceptor is known but for which there is no suitable sub-subclass, and EC 1.97.y.z for enzymes where the donor is known but for which there is no sub ...
NETosis: how vital is it?
... open by microtubules. Breakdown of the nuclear envelope can be rapid, as demonstrated by the biphasic mechanisms observed in oocytes. Here, the pore complex partially disassembles in 10 minutes (phase 1), followed by complete envelope permeabilization within 35 seconds (phase 2) and finally complete ...
... open by microtubules. Breakdown of the nuclear envelope can be rapid, as demonstrated by the biphasic mechanisms observed in oocytes. Here, the pore complex partially disassembles in 10 minutes (phase 1), followed by complete envelope permeabilization within 35 seconds (phase 2) and finally complete ...
cell-substratum adhesion of neurite growth cones, and its role in
... The adhesion of chick embryo sensory neurons to glass coverslips was examined with interference reflection optics. On untreated glass, adhesive contacts are common only beneath growth cones and are small. On polylysine-treated glass growth cones are highly spread, microspikes reach treat lengths and ...
... The adhesion of chick embryo sensory neurons to glass coverslips was examined with interference reflection optics. On untreated glass, adhesive contacts are common only beneath growth cones and are small. On polylysine-treated glass growth cones are highly spread, microspikes reach treat lengths and ...
Nucleation and Dynamics of Golgi-derived Microtubules
... Integrity of the Golgi apparatus requires the microtubule (MT) network. A subset of MTs originates at the Golgi itself, which in this case functions as a MT-organizing center (MTOC). Golgi-derived MTs serve important roles in post-Golgi trafficking, maintenance of Golgi integrity, cell polarity and ...
... Integrity of the Golgi apparatus requires the microtubule (MT) network. A subset of MTs originates at the Golgi itself, which in this case functions as a MT-organizing center (MTOC). Golgi-derived MTs serve important roles in post-Golgi trafficking, maintenance of Golgi integrity, cell polarity and ...
Anti-OPN Monoclonal Antibodies as Probes of OPN Structure and
... used uncloned hybridomas because of our desire to identify MAbs that might not be effectively detected by Western Blotting or ELISAs (because the relevant epitope was bound to the plastic or PVDF membrane). Thus we use two additional screening methodologies to detect antigen-antibody associations fr ...
... used uncloned hybridomas because of our desire to identify MAbs that might not be effectively detected by Western Blotting or ELISAs (because the relevant epitope was bound to the plastic or PVDF membrane). Thus we use two additional screening methodologies to detect antigen-antibody associations fr ...
New TURF for TIRF - Stowers Institute for Medical Research
... [calculated using n2 = 1.52 (RI coverglass and immersion liquid) and n 1 = 1.38] ...
... [calculated using n2 = 1.52 (RI coverglass and immersion liquid) and n 1 = 1.38] ...
Muscles of the Body
... “Plateau Phase” cell undergoes a continuous influx of Ca++ From -50mV through phase 1 of the action potential Allows for sustained contraction (or whatever that cell’s particular function is) ...
... “Plateau Phase” cell undergoes a continuous influx of Ca++ From -50mV through phase 1 of the action potential Allows for sustained contraction (or whatever that cell’s particular function is) ...
to the marking scheme for all papers
... examination in GCE BIOLOGY - HUMAN BIOLOGY. They were finalised after detailed discussion at examiners' conferences by all the examiners involved in the assessment. The conferences were held shortly after the papers were taken so that reference could be made to the full range of candidates' response ...
... examination in GCE BIOLOGY - HUMAN BIOLOGY. They were finalised after detailed discussion at examiners' conferences by all the examiners involved in the assessment. The conferences were held shortly after the papers were taken so that reference could be made to the full range of candidates' response ...
Running title: Mode of Bactericidal Action of the Jatropha curcas
... Abstract: This research presents the antibacterial potential and mode of action of related active compounds of kernel meal, leaves, stem bark, root bark and root wood extracts of Jatropha curcas Linn. plant on Staphylococcus aureus S1434 and Escherichia coli E216. At double MIC (minimum inhibitory ...
... Abstract: This research presents the antibacterial potential and mode of action of related active compounds of kernel meal, leaves, stem bark, root bark and root wood extracts of Jatropha curcas Linn. plant on Staphylococcus aureus S1434 and Escherichia coli E216. At double MIC (minimum inhibitory ...
Mitochondrial quality control by the ubiquitin
... novel protein, which we have named Vms1 [VCP (valosincontaining protein) (p97)/Cdc48-associated mitochondrialstress-responsive 1], recruits Cdc48/p97 and Npl4 to stressed mitochondria [15]. Under normal growth conditions the Vms1 complex resides in the cytosol. However, on treatment with mitochondri ...
... novel protein, which we have named Vms1 [VCP (valosincontaining protein) (p97)/Cdc48-associated mitochondrialstress-responsive 1], recruits Cdc48/p97 and Npl4 to stressed mitochondria [15]. Under normal growth conditions the Vms1 complex resides in the cytosol. However, on treatment with mitochondri ...
Chapter 05: Synaptic Transmission
... channels Can act as amplifiers (vs. passive) : EPSPs that are large enough to open voltage-gated channels can reach the soma by the boost offered by added currents through VGSCs Dendritic sodium channels: May carry electrical signals in opposite direction, from soma outward along dendrites : bac ...
... channels Can act as amplifiers (vs. passive) : EPSPs that are large enough to open voltage-gated channels can reach the soma by the boost offered by added currents through VGSCs Dendritic sodium channels: May carry electrical signals in opposite direction, from soma outward along dendrites : bac ...
The Pathogenic Fungus Paracoccidioides brasiliensis Exports
... FIG. 1. (A to C) TEM images of a P. brasiliensis yeast cell (A) and vesicle pellets from two different preparations (B and C). In panel A, vesicles are seen at the surface (arrows) outside of the cell wall (CW). (D) Detail of the boxed area of the vesicle shown in panel C allowing visualization of a ...
... FIG. 1. (A to C) TEM images of a P. brasiliensis yeast cell (A) and vesicle pellets from two different preparations (B and C). In panel A, vesicles are seen at the surface (arrows) outside of the cell wall (CW). (D) Detail of the boxed area of the vesicle shown in panel C allowing visualization of a ...
Two Distinct Attachment Sites for Vimentin along the Plasma
... systems have been used so far for studying the association of filaments with membranes (lens, erythrocytes, etc.) (14, 27). Within these boundaries we have recently analyzed the molecular interactions of the intermediate filament (IF) ~ subunit vimentin with the plasma membrane using the anucleate h ...
... systems have been used so far for studying the association of filaments with membranes (lens, erythrocytes, etc.) (14, 27). Within these boundaries we have recently analyzed the molecular interactions of the intermediate filament (IF) ~ subunit vimentin with the plasma membrane using the anucleate h ...
I./6.: Anatomy of the larynx
... 4. Arytenoid cartilage (paired) 5. Corniculate cartilage (paired) 6. Cuneiform cartilage (paired) 7. Triticeous cartilage (not always present) Thyroid Cartilage The thyroid cartilage (hyaline cartilage) is the largest and encloses the larynx anteriorly and laterally, thus shielding it from all but t ...
... 4. Arytenoid cartilage (paired) 5. Corniculate cartilage (paired) 6. Cuneiform cartilage (paired) 7. Triticeous cartilage (not always present) Thyroid Cartilage The thyroid cartilage (hyaline cartilage) is the largest and encloses the larynx anteriorly and laterally, thus shielding it from all but t ...
Respiratory System
... The left and right lungs are located in the left and right pleural cavities in the thoracic cavity. Each lung is like a blunt cone with the tip, or apex, pointing superiorly. The broad concave inferior portion, or base, of each lung rests on the superior surface of the diaphragm. Each lung is surrou ...
... The left and right lungs are located in the left and right pleural cavities in the thoracic cavity. Each lung is like a blunt cone with the tip, or apex, pointing superiorly. The broad concave inferior portion, or base, of each lung rests on the superior surface of the diaphragm. Each lung is surrou ...
Tissues PPT - Dr Magrann
... in up to one-third of patients and is the most serious complication for this form of scleroderma. Diffuse systemic sclerosis/scleroderma is rapidly progressing and affects a large area of the skin and one or more internal organs, frequently the kidneys, esophagus, heart, and lungs. This form of sc ...
... in up to one-third of patients and is the most serious complication for this form of scleroderma. Diffuse systemic sclerosis/scleroderma is rapidly progressing and affects a large area of the skin and one or more internal organs, frequently the kidneys, esophagus, heart, and lungs. This form of sc ...
Glycosylation and Sorting of Secretory Proteins in the Endoplasmic
... 1. Glycosylation of proteins trapped in the yeast ER (I) .........................40 1.1 N-glycans are extended in the ER when ER-to-Golgi traffic is blocked .. 40 1.2 Och1p relocates to the ER when COPII-mediated traffic is impaired .... 41 1.3 Recycling of Och1p is mediated by COPI ............... ...
... 1. Glycosylation of proteins trapped in the yeast ER (I) .........................40 1.1 N-glycans are extended in the ER when ER-to-Golgi traffic is blocked .. 40 1.2 Och1p relocates to the ER when COPII-mediated traffic is impaired .... 41 1.3 Recycling of Och1p is mediated by COPI ............... ...
The GARP complex is required for cellular sphingolipid homeostasis
... four of five subunits of retromer (vps17Δ, pep8Δ, vps35Δ, vps29Δ; Figure 1B). In addition, our screen identified two of the three SNARE proteins important for GARP-dependent trafficking (tlg2Δ, vti1DAMP) and VPS63, a gene overlapping almost completely with the GTPase YPT6 that is involved in Golgi-e ...
... four of five subunits of retromer (vps17Δ, pep8Δ, vps35Δ, vps29Δ; Figure 1B). In addition, our screen identified two of the three SNARE proteins important for GARP-dependent trafficking (tlg2Δ, vti1DAMP) and VPS63, a gene overlapping almost completely with the GTPase YPT6 that is involved in Golgi-e ...
Summary - Universität Tübingen
... In eukaryotic cells, the nucleus is enclosed by the two continuous membranes of the nuclear envelope establishing a physical barrier that spatially separates the nucleoplasm from the cytoplasm. To accommodate bidirectional transport across this barrier nuclear pore complexes (NPCs) form highly selec ...
... In eukaryotic cells, the nucleus is enclosed by the two continuous membranes of the nuclear envelope establishing a physical barrier that spatially separates the nucleoplasm from the cytoplasm. To accommodate bidirectional transport across this barrier nuclear pore complexes (NPCs) form highly selec ...
Two Distinct Attachment Sites for Vimentin along
... systems have been used so far for studying the association of filaments with membranes (lens, erythrocytes, etc.) (14, 27). Within these boundaries we have recently analyzed the molecular interactions of the intermediate filament (IF) ~ subunit vimentin with the plasma membrane using the anucleate h ...
... systems have been used so far for studying the association of filaments with membranes (lens, erythrocytes, etc.) (14, 27). Within these boundaries we have recently analyzed the molecular interactions of the intermediate filament (IF) ~ subunit vimentin with the plasma membrane using the anucleate h ...
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.