concept - Oslo University Hospital
... checkpoint mechanisms, which mainly function in the case of perturbations. However, no proteins have been proven to be the initial, or primary, regulators of cell-cycle events under normal conditions. For example, in S. pombe cells, overproduction of the DNA replication initiation protein Cdc18 prom ...
... checkpoint mechanisms, which mainly function in the case of perturbations. However, no proteins have been proven to be the initial, or primary, regulators of cell-cycle events under normal conditions. For example, in S. pombe cells, overproduction of the DNA replication initiation protein Cdc18 prom ...
Exam I
... 20) If neuron X is excitatory and fires multiple action potentials to bring neuron W to threshold… A) spatial summation is occurring. B) temporal summation is occurring. C) inhibition shunting is occurring. D) All of the above are true. E) None of the above is true. 21) Based only on the location of ...
... 20) If neuron X is excitatory and fires multiple action potentials to bring neuron W to threshold… A) spatial summation is occurring. B) temporal summation is occurring. C) inhibition shunting is occurring. D) All of the above are true. E) None of the above is true. 21) Based only on the location of ...
Degree of reduction
... Assuming that biomass consists of certain types of macromolecules (e.g. protein, RNA), it is possible to calculate an average elemental composition for biomass from the average content of the individual building blocks. The following are typical values: ...
... Assuming that biomass consists of certain types of macromolecules (e.g. protein, RNA), it is possible to calculate an average elemental composition for biomass from the average content of the individual building blocks. The following are typical values: ...
NNF1 is an essential yeast gene required for proper spindle
... multiple polypeptides, making it likely that signals on both RNA and protein are required for nuclear export (Fischer et al., 1996). Recently a receptor for protein export was also identified in human cells as Rab1, and in yeast as Rip1. Both Rab1 and Rip1 interact with a specific 10 amino acid nucl ...
... multiple polypeptides, making it likely that signals on both RNA and protein are required for nuclear export (Fischer et al., 1996). Recently a receptor for protein export was also identified in human cells as Rab1, and in yeast as Rip1. Both Rab1 and Rip1 interact with a specific 10 amino acid nucl ...
IngesYve Behaviour - Dr. Jeffrey Nicol`s Courses
... • There are receptors in the head that we learn to use as indicators about the caloric contents of different foods • Act of tas&ng and swallowing contributes to the the feeling of fulness • People b ...
... • There are receptors in the head that we learn to use as indicators about the caloric contents of different foods • Act of tas&ng and swallowing contributes to the the feeling of fulness • People b ...
Cells
... The coloured circles represent molecules in the cytoplasm. They may be sugar, salt or protein molecules. The blue circles represent water molecules. The cell is shown surrounded by pure water. Nothing is dissolved in the water; it has 100% concentration of water molecules. So the concentration of fr ...
... The coloured circles represent molecules in the cytoplasm. They may be sugar, salt or protein molecules. The blue circles represent water molecules. The cell is shown surrounded by pure water. Nothing is dissolved in the water; it has 100% concentration of water molecules. So the concentration of fr ...
video slide - Human Anatomy
... – Are lipids characterized by a carbon skeleton consisting of four fused rings ...
... – Are lipids characterized by a carbon skeleton consisting of four fused rings ...
Computational design of a pH-sensitive IgG binding
... ecombinant monoclonal antibodies and Fc-fusion proteins have become an important class of biological pharmaceuticals and are widely used as research reagents. Their manufacture typically involves mammalian cells as the expression host and affinity chromatography as a key purification step. Although ...
... ecombinant monoclonal antibodies and Fc-fusion proteins have become an important class of biological pharmaceuticals and are widely used as research reagents. Their manufacture typically involves mammalian cells as the expression host and affinity chromatography as a key purification step. Although ...
Mini-Review Roles of Molecular Chaperones in Protein Degradation
... EAT and other forms of stress that cause proteins to denature induce the synthesis of several classes of proteins known as heat shock proteins ( h s p s ) 1 many of which act as molecular chaperones (see Table I). A major role of these molecular chaperones after stress is to catalyze the refolding o ...
... EAT and other forms of stress that cause proteins to denature induce the synthesis of several classes of proteins known as heat shock proteins ( h s p s ) 1 many of which act as molecular chaperones (see Table I). A major role of these molecular chaperones after stress is to catalyze the refolding o ...
Biochemistry
... (h) Define the Beer Lambert Law. The A340 of a solution of NADH was found to be 0.29. What was the concentration of this solution? (εNADH = 6220 M-1 cm-1). (i) Although oxygen does not participate directly in the citric acid cycle, the cycle operates only when O2 is present. Why? (j) Calculate the n ...
... (h) Define the Beer Lambert Law. The A340 of a solution of NADH was found to be 0.29. What was the concentration of this solution? (εNADH = 6220 M-1 cm-1). (i) Although oxygen does not participate directly in the citric acid cycle, the cycle operates only when O2 is present. Why? (j) Calculate the n ...
CHAPTER 14: THE AUTONOMIC NERVOUS SYSTEM AND
... ANS motor neurons do not directly innervate their target like somatic motors neurons; require a two-neuron circuit (Figure 14.2b): o Preganglionic neuron – initial efferent neuron; cell body resides within CNS; all axons release acetylcholine o Postganglionic neuron – cell body resides in autonomi ...
... ANS motor neurons do not directly innervate their target like somatic motors neurons; require a two-neuron circuit (Figure 14.2b): o Preganglionic neuron – initial efferent neuron; cell body resides within CNS; all axons release acetylcholine o Postganglionic neuron – cell body resides in autonomi ...
Internalization of Invasin-bearing Bacteria by Eukaryotic Cells Is
... which time they were well spread on the substratum, expressing numerous filopodia on their surfaces . After the addition of the invasin-expressing DH5a/pYITI strain to the cell culture, time-lapse microscopy showed bacteria drifting in the medium, randomly colliding with the HEp-2 cells, either with ...
... which time they were well spread on the substratum, expressing numerous filopodia on their surfaces . After the addition of the invasin-expressing DH5a/pYITI strain to the cell culture, time-lapse microscopy showed bacteria drifting in the medium, randomly colliding with the HEp-2 cells, either with ...
Filovirus tropism: cellular molecules for viral entry
... receptor binding and fusion of the virus envelope with the host cell membrane (Takada et al., 1997; Wool-Lewis and Bates, 1998) (Figures 3 and 4). GP is highly glycosylated with large amounts of N- and O-linked glycans, most of which are uniformly located in the middle one-third of the GP, designate ...
... receptor binding and fusion of the virus envelope with the host cell membrane (Takada et al., 1997; Wool-Lewis and Bates, 1998) (Figures 3 and 4). GP is highly glycosylated with large amounts of N- and O-linked glycans, most of which are uniformly located in the middle one-third of the GP, designate ...
Single Molecule Detection in Life Science
... as motors, DNA transcription processors, cell signaling processors, protein synthesizers, and folding chaperones. These molecular machines collaborate and function in living ...
... as motors, DNA transcription processors, cell signaling processors, protein synthesizers, and folding chaperones. These molecular machines collaborate and function in living ...
Nonhost resistance and nonspecific plant defenses Michèle C Heath
... inducers of defense responses in nonhost plant–pathogen interactions. New experimental evidence suggests that cryptogein, one of a family of proteinaceous elicitors produced by Phytophthora species, has binding sites on cells from both plant species that do and that do not defensively respond to the ...
... inducers of defense responses in nonhost plant–pathogen interactions. New experimental evidence suggests that cryptogein, one of a family of proteinaceous elicitors produced by Phytophthora species, has binding sites on cells from both plant species that do and that do not defensively respond to the ...
"Regulation of Prokaryotic Gene Expression". In: Microbial
... (mwt 30,000) for which no definitive role has been assigned. The promoter and operator for the lac operon are lacP and lacO, respectively. The lacI gene codes for the repressor protein, and in this system is situated next to the lac operon. Often, regulatory loci encoding for diffusible regulator pr ...
... (mwt 30,000) for which no definitive role has been assigned. The promoter and operator for the lac operon are lacP and lacO, respectively. The lacI gene codes for the repressor protein, and in this system is situated next to the lac operon. Often, regulatory loci encoding for diffusible regulator pr ...
Cells and Molecules of Life
... (1) While the H:O ratio in carbohydrates is about 2:1, the H:O ratio in lipids is 18:1. (Read this as: “While the hydrogen to oxygen ratio in carbohydrates is about two to one, the hydrogen to oxygen ratio in lipids is eighteen to one.”) (2) Lipids are insoluble in water, but they are soluble in org ...
... (1) While the H:O ratio in carbohydrates is about 2:1, the H:O ratio in lipids is 18:1. (Read this as: “While the hydrogen to oxygen ratio in carbohydrates is about two to one, the hydrogen to oxygen ratio in lipids is eighteen to one.”) (2) Lipids are insoluble in water, but they are soluble in org ...
The Electrochemical Gradient - Advanced
... and cellular respiration to generate a chemiosmotic potential, or proton motive force. This potential energy is used for the synthesis of ATP by oxidative phosphorylation. The proton gradient can also be used to store energy for heat production and flagellar rotation. The energy held within the prot ...
... and cellular respiration to generate a chemiosmotic potential, or proton motive force. This potential energy is used for the synthesis of ATP by oxidative phosphorylation. The proton gradient can also be used to store energy for heat production and flagellar rotation. The energy held within the prot ...
Nucleolar localization of an isoform of the IGF
... remained when the 2-G-4-5 construction was overexpressed (Fig. 5A). However, in the case of the 1-G-4-5 construction, the fluorescence was rapidly exported, and little nuclear or nucleolar localization was seen. We interpret this as an effect of the strength of the secretory signal peptide in compet ...
... remained when the 2-G-4-5 construction was overexpressed (Fig. 5A). However, in the case of the 1-G-4-5 construction, the fluorescence was rapidly exported, and little nuclear or nucleolar localization was seen. We interpret this as an effect of the strength of the secretory signal peptide in compet ...
How viruses damage cells: alterations in plasma
... changes, and that detergents and drugs that happen to have an anti-Ca2+-like action potentiate permeability changes. Similarity to other pore forming agents If the action of haemolytic paramyxoviruses on cells is due to the induction of some kind of hydrophilic pore in the plasma membrane, then the ...
... changes, and that detergents and drugs that happen to have an anti-Ca2+-like action potentiate permeability changes. Similarity to other pore forming agents If the action of haemolytic paramyxoviruses on cells is due to the induction of some kind of hydrophilic pore in the plasma membrane, then the ...
Gene Section PLA2G2A (phospholipase A2, group IIA (platelets, synovial fluid))
... responses by attracting inflammatory cells and by stimulating the production of various mediators of inflammation, both through its enzymatic and its receptor-mediated actions. PLA2G2A, a potential anti-inflammatory factor. There is direct and indirect evidence that PLA2G2A may also act in an anti-i ...
... responses by attracting inflammatory cells and by stimulating the production of various mediators of inflammation, both through its enzymatic and its receptor-mediated actions. PLA2G2A, a potential anti-inflammatory factor. There is direct and indirect evidence that PLA2G2A may also act in an anti-i ...
A View of the Cell
... The microscopes we have discussed so far use a beam of light and can magnify an object up to about 1500 times its actual size. Although light microscopes continue to be valuable tools, scientists knew that another world, which they could not yet see, existed within a cell. In the1930s and 1940s, a n ...
... The microscopes we have discussed so far use a beam of light and can magnify an object up to about 1500 times its actual size. Although light microscopes continue to be valuable tools, scientists knew that another world, which they could not yet see, existed within a cell. In the1930s and 1940s, a n ...
In Vivo Assembly of Phage 29 Replication Protein p1 into
... In both eukaryotes and prokaryotes, the use of large organizing structures to bring together replication factors seems to be a general mechanism to enhance the efficiency of the replication process. In eukaryotes, chromosomal DNA replication occurs at numerous locations within the nucleus. Each site ...
... In both eukaryotes and prokaryotes, the use of large organizing structures to bring together replication factors seems to be a general mechanism to enhance the efficiency of the replication process. In eukaryotes, chromosomal DNA replication occurs at numerous locations within the nucleus. Each site ...
Molecular cloning, expression, and bioactivity of dove B lymphocyte
... predict transmembrane spanning domain and a putative furin protease cleavage site similar to other avain and mammalian BAFFs. 3.2. Sequence comparison As shown in Fig. 2, sequence comparison indicated that the amino acid sequence of doBAFF shared high identity to hBAFF (50.66%), mBAFF (44.69%), dBAF ...
... predict transmembrane spanning domain and a putative furin protease cleavage site similar to other avain and mammalian BAFFs. 3.2. Sequence comparison As shown in Fig. 2, sequence comparison indicated that the amino acid sequence of doBAFF shared high identity to hBAFF (50.66%), mBAFF (44.69%), dBAF ...
vocab - Cellular Respiration
... Mechanism that uses energy stored in the form of a hydrogen ion gradient across a membrane to drive cellular work such as the synthesis of ATP. Most ATP synthesis in cells occurs by ...
... Mechanism that uses energy stored in the form of a hydrogen ion gradient across a membrane to drive cellular work such as the synthesis of ATP. Most ATP synthesis in cells occurs by ...
Signal transduction
Signal transduction occurs when an extracellular signaling molecule activates a specific receptor located on the cell surface or inside the cell. In turn, this receptor triggers a biochemical chain of events inside the cell, creating a response. Depending on the cell, the response alters the cell's metabolism, shape, gene expression, or ability to divide. The signal can be amplified at any step. Thus, one signaling molecule can cause many responses.