Inductive asymmetric cell division
... absence of both Wnt and Src signaling (B), WRM-1 is not released from the cortex and spindle rotation fails to occur. Removal of WRM-1 in (C) rescues spindle rotation by exposing a redundant polarity cue (thick red line), which may represent the remnant of a polarity signal established at fertilizat ...
... absence of both Wnt and Src signaling (B), WRM-1 is not released from the cortex and spindle rotation fails to occur. Removal of WRM-1 in (C) rescues spindle rotation by exposing a redundant polarity cue (thick red line), which may represent the remnant of a polarity signal established at fertilizat ...
A theoretical analysis of the ephaptic feedback mechanism
... by substituting reasonable values for the two free parameters, p and T . Two free parameters, for which no precise values are currently available, are still present in the model: p , the fraction of glutamate gated channels on the tip of the horizontal cell dendrites, and T , the tortuosity factor w ...
... by substituting reasonable values for the two free parameters, p and T . Two free parameters, for which no precise values are currently available, are still present in the model: p , the fraction of glutamate gated channels on the tip of the horizontal cell dendrites, and T , the tortuosity factor w ...
Protein Sorting and Transport - The Endoplasmic Reticulum, Golgi
... Binding to the receptor releases the SRP from both the ribosome and the signal sequence of the growing polypeptide chain. The ribosome then binds to a protein translocation complex in the ER membrane, and the signal sequence is inserted into a membrane channel. In both yeast and mammalian cells, the ...
... Binding to the receptor releases the SRP from both the ribosome and the signal sequence of the growing polypeptide chain. The ribosome then binds to a protein translocation complex in the ER membrane, and the signal sequence is inserted into a membrane channel. In both yeast and mammalian cells, the ...
NCEA Level 2 Biology (91156) 2016
... During DNA replication, enzymes function using the induced fit model. The active site and substrate are not initially perfect matches for each other. The active site continues to change until the substrate is completely bound to it, at which point the final shape of the enzyme is determined. Factors ...
... During DNA replication, enzymes function using the induced fit model. The active site and substrate are not initially perfect matches for each other. The active site continues to change until the substrate is completely bound to it, at which point the final shape of the enzyme is determined. Factors ...
Tertiary and Quaternary Structure
... From x-ray diffraction studies and solution nmr studies of proteins, we know the details of the three dimensional structures of thousands of globular proteins. Every protein has a unique three dimensional structure made up of a variety of helices, beta-sheets and non-regular regions, which are folde ...
... From x-ray diffraction studies and solution nmr studies of proteins, we know the details of the three dimensional structures of thousands of globular proteins. Every protein has a unique three dimensional structure made up of a variety of helices, beta-sheets and non-regular regions, which are folde ...
Transcriptomics of In Vitro Immune-Stimulated Hemocytes
... rather than angiogenesis in skin and adipose tissues. Inflammation occurs via the a5b1 integrin/Rac1/NF-kB pathway, which is evidenced by an increase in leukocyte infiltration, blood vessel permeability and the expression of inflammatory cytokines (tumor necrosis factor-a, interleukin-6 and interleu ...
... rather than angiogenesis in skin and adipose tissues. Inflammation occurs via the a5b1 integrin/Rac1/NF-kB pathway, which is evidenced by an increase in leukocyte infiltration, blood vessel permeability and the expression of inflammatory cytokines (tumor necrosis factor-a, interleukin-6 and interleu ...
Cellular localization of RNA expression in central and peripheral
... Higher resolution examples of transcript labeling from subpanel 4 shown separately for each gene. Scale bars (A) 250 µm, all other panels 20 µm. ...
... Higher resolution examples of transcript labeling from subpanel 4 shown separately for each gene. Scale bars (A) 250 µm, all other panels 20 µm. ...
The Nervous System
... • Graded potentials by themselves cannot trigger activation of large neurons and muscle fibers – Referred to as having excitable membranes ...
... • Graded potentials by themselves cannot trigger activation of large neurons and muscle fibers – Referred to as having excitable membranes ...
500KB - NZQA
... During DNA replication, enzymes function using the induced fit model. The active site and substrate are not initially perfect matches for each other. The active site continues to change until the substrate is completely bound to it, at which point the final shape of the enzyme is determined. Factors ...
... During DNA replication, enzymes function using the induced fit model. The active site and substrate are not initially perfect matches for each other. The active site continues to change until the substrate is completely bound to it, at which point the final shape of the enzyme is determined. Factors ...
It is essential for students to know the three major tenets of the cell
... Active transport: endocytosis, ectocytosis Previous knowledge: In 7th grade, students summarized the structures and functions of the major components of plant and animal cells (diffusion and osmosis across the cell membrane) (7-2.1) and explained how cellular processes (including respiration and was ...
... Active transport: endocytosis, ectocytosis Previous knowledge: In 7th grade, students summarized the structures and functions of the major components of plant and animal cells (diffusion and osmosis across the cell membrane) (7-2.1) and explained how cellular processes (including respiration and was ...
Neurotransmitter Parameter Definitions
... Glutamate is the major excitatory neurotransmitter in the brain which is necessary for memory and learning. In fact, it is believed that 70% of the fast excitatory CNS synapses utilize glutamate as a transmitter. Excitatory neurotransmitters increase the activity of signal-receiving neurons and play ...
... Glutamate is the major excitatory neurotransmitter in the brain which is necessary for memory and learning. In fact, it is believed that 70% of the fast excitatory CNS synapses utilize glutamate as a transmitter. Excitatory neurotransmitters increase the activity of signal-receiving neurons and play ...
action potential
... Every cell has a voltage (difference in electrical charge) across its plasma membrane called a membrane potential Messages are transmitted as changes in membrane potential The resting potential is the membrane potential of a neuron not sending signals ...
... Every cell has a voltage (difference in electrical charge) across its plasma membrane called a membrane potential Messages are transmitted as changes in membrane potential The resting potential is the membrane potential of a neuron not sending signals ...
Enzymes..
... E. Quantity of enzyme is not consumed during the enzymatic reaction. Find the differences between enzymes and inorganic catalysts A. High specificity B. They catalyze only energetically possible reactions C. They do not vary a reaction direction D. They accelerate reaction equilibrium beginning, but ...
... E. Quantity of enzyme is not consumed during the enzymatic reaction. Find the differences between enzymes and inorganic catalysts A. High specificity B. They catalyze only energetically possible reactions C. They do not vary a reaction direction D. They accelerate reaction equilibrium beginning, but ...
SM-20, EGL-9, and the EGLN Family of Hypoxia
... Key to the transduction of signals from the environment to the cell nucleus are enzymes that posttranslationally modify proteins. Modifications such as protein phosphorylation have long been known to regulate protein interactions, stability, and localization, as well as enzyme activity. Recent inves ...
... Key to the transduction of signals from the environment to the cell nucleus are enzymes that posttranslationally modify proteins. Modifications such as protein phosphorylation have long been known to regulate protein interactions, stability, and localization, as well as enzyme activity. Recent inves ...
Assembly of AO and DHAS - Journal of Cell Science
... The data show that the matrix fraction contained virtually all our data is that the dimeric form of DHAS is the major if not the AO and DHAS from the pellet (Fig. 1C) and no the only species that crosses the peroxisomal membrane. peroxisomal membrane (Fig. 1D). In summary, there is little Having sho ...
... The data show that the matrix fraction contained virtually all our data is that the dimeric form of DHAS is the major if not the AO and DHAS from the pellet (Fig. 1C) and no the only species that crosses the peroxisomal membrane. peroxisomal membrane (Fig. 1D). In summary, there is little Having sho ...
Uncoupling insulin signalling by serine/threonine phosphorylation: a
... Ser phosphorylation of IRS proteins and insulin resistance Insulin resistance is a common pathological state in which target cells fail to respond to ordinary levels of circulating insulin [25]. Individuals with insulin resistance are predisposed to developing Type II diabetes, a 21st century epidem ...
... Ser phosphorylation of IRS proteins and insulin resistance Insulin resistance is a common pathological state in which target cells fail to respond to ordinary levels of circulating insulin [25]. Individuals with insulin resistance are predisposed to developing Type II diabetes, a 21st century epidem ...
Nature
... LeuT is a stable, sodium-coupled leucine transporter from the eubacterium Aquifex aeolicus and is the only member of the neurotransmitter sodium symporter (NSS or SLC6) family of secondary transporters that has so far been amenable to structural analysis17. Eukaryotic NSS counterparts include those ...
... LeuT is a stable, sodium-coupled leucine transporter from the eubacterium Aquifex aeolicus and is the only member of the neurotransmitter sodium symporter (NSS or SLC6) family of secondary transporters that has so far been amenable to structural analysis17. Eukaryotic NSS counterparts include those ...
The co-ordination of cell division, differentiation and morphogenesis
... Fig. 1. (A) Longitudinal section through the meristem of a tobacco plant. The meristem consists of an orderly array of cells. (B) Hand section through the shoot apical meristem of a Tet::GUS plant which has been micro-induced. This leads to local induction of gene expression, as visualized by blue s ...
... Fig. 1. (A) Longitudinal section through the meristem of a tobacco plant. The meristem consists of an orderly array of cells. (B) Hand section through the shoot apical meristem of a Tet::GUS plant which has been micro-induced. This leads to local induction of gene expression, as visualized by blue s ...
The World of Cells Kinds of Cells Tour of a Eukaryotic Cell Transport
... use of stains that bind to specific molecular targets. This approach has been used in the analysis of tissue samples, or histology, for many years and has been improved dramatically with the use of antibiotics that bind to very specific molecular structures. This process, called immunocytochemistry, u ...
... use of stains that bind to specific molecular targets. This approach has been used in the analysis of tissue samples, or histology, for many years and has been improved dramatically with the use of antibiotics that bind to very specific molecular structures. This process, called immunocytochemistry, u ...
Scents and Sensibility: A Molecular Logic of Olfactory Perception
... permitted the introduction of virtually any gene into any cell in culture. He developed a system that not only allowed for the isolation of genes, but also for detailed analysis of how they worked. We now had a facile assay to study the sequences regulating gene expression as well as gene function. ...
... permitted the introduction of virtually any gene into any cell in culture. He developed a system that not only allowed for the isolation of genes, but also for detailed analysis of how they worked. We now had a facile assay to study the sequences regulating gene expression as well as gene function. ...
Identification of Genes Interacting with rnt-1 Through Large
... It is well-known that a major function of RUNX genes in cells is to regulate the balance between cell proliferation and differentiation (Coffman 2003). Because the decision between cell proliferation and differentiation must reflect the precise cellular environment, the roles and action mechanism of ...
... It is well-known that a major function of RUNX genes in cells is to regulate the balance between cell proliferation and differentiation (Coffman 2003). Because the decision between cell proliferation and differentiation must reflect the precise cellular environment, the roles and action mechanism of ...
Standard B-2
... Active transport: endocytosis, ectocytosis Previous knowledge: In 7th grade, students summarized the structures and functions of the major components of plant and animal cells (diffusion and osmosis across the cell membrane) (7-2.1) and explained how cellular processes (including respiration and was ...
... Active transport: endocytosis, ectocytosis Previous knowledge: In 7th grade, students summarized the structures and functions of the major components of plant and animal cells (diffusion and osmosis across the cell membrane) (7-2.1) and explained how cellular processes (including respiration and was ...
Cell Division
... The genetic information that is passed on from one generation of cells to the next is carried by chromosomes. Every cell must copy its genetic information before cell division begins. Each daughter cell gets its own copy of that genetic information. Cells of every organism have a specific number of ...
... The genetic information that is passed on from one generation of cells to the next is carried by chromosomes. Every cell must copy its genetic information before cell division begins. Each daughter cell gets its own copy of that genetic information. Cells of every organism have a specific number of ...
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.