RCSB Molecule of the Month - Neurotransmitter Transporters
... fast. Most neurons, however, use chemical signals to transmit their messages, releasing small neurotransmitter molecules that are recognized by receptors on neighboring neurons. Neurotransmitters have two important advantages: since thousands of molecules are released, they amplify the signal, and s ...
... fast. Most neurons, however, use chemical signals to transmit their messages, releasing small neurotransmitter molecules that are recognized by receptors on neighboring neurons. Neurotransmitters have two important advantages: since thousands of molecules are released, they amplify the signal, and s ...
CELL
... Most cells are small for 2 reasons: 1. Cells are limited in size by the _____________between their _____________________ and their _________________. • As a cell’s size increases, its volume increases much faster than its surface ...
... Most cells are small for 2 reasons: 1. Cells are limited in size by the _____________between their _____________________ and their _________________. • As a cell’s size increases, its volume increases much faster than its surface ...
OPEN STOMATA1 opens the door to ABA signaling in Arabidopsis
... AAPK cDNA was cloned based on peptide sequence obtained by de novo mass spectrometric sequence analysis [7]. OST1 is 79% identical to AAPK and, like AAPK, displays ABA-dependent autophosphorylation. ost1 mutant guard cells and V. faba guard cells expressing a dominant negative form of AAPK both exhi ...
... AAPK cDNA was cloned based on peptide sequence obtained by de novo mass spectrometric sequence analysis [7]. OST1 is 79% identical to AAPK and, like AAPK, displays ABA-dependent autophosphorylation. ost1 mutant guard cells and V. faba guard cells expressing a dominant negative form of AAPK both exhi ...
Historical Background: In 1838, Schwann and - Moodle
... Overview of secondary metabolite production in tissue culture: Plants produce a large spectrum of natural products, the secondary metabolites. Nowadays, it is accepted that although these compounds are not important for the primary metabolism of the plant, they are in many cases of great importance ...
... Overview of secondary metabolite production in tissue culture: Plants produce a large spectrum of natural products, the secondary metabolites. Nowadays, it is accepted that although these compounds are not important for the primary metabolism of the plant, they are in many cases of great importance ...
In vitro development of inner cell masses isolated immunosurgically
... After 24-48 h incubation most of the inner cell masses isolated from half expanded blastocysts, and about 50 % of those from expanded blastocysts, have a striking resemblance to normal expanded blastocysts, with an outer trophectoderm-like wall surrounding an inner cluster of cells. Over the next fe ...
... After 24-48 h incubation most of the inner cell masses isolated from half expanded blastocysts, and about 50 % of those from expanded blastocysts, have a striking resemblance to normal expanded blastocysts, with an outer trophectoderm-like wall surrounding an inner cluster of cells. Over the next fe ...
A quantitative atlas of mitotic phosphorylation
... cells. Our data include 3,545 common sites, 53% of which were in the previous study (Fig. S1). The PhosphoSite database (19) (www.phosphosite.org) is a curated collection of phosphorylation sites with ⬎13,000 human sites from the literature. Our data contain 4,051 (31%) of these sites. Of the sites ...
... cells. Our data include 3,545 common sites, 53% of which were in the previous study (Fig. S1). The PhosphoSite database (19) (www.phosphosite.org) is a curated collection of phosphorylation sites with ⬎13,000 human sites from the literature. Our data contain 4,051 (31%) of these sites. Of the sites ...
Connective Tissue
... supported by an extracellular matrix. Ground substance traditionally does not include fibers (collagen and elastic fibers), but does include all the other components of the extracellular ...
... supported by an extracellular matrix. Ground substance traditionally does not include fibers (collagen and elastic fibers), but does include all the other components of the extracellular ...
FREE Sample Here
... A) Prokaryotes cannot secrete proteins because they lack an endomembrane system. B) The mechanism of protein secretion in prokaryotes is probably the same as that in eukaryotes. C) Proteins secreted by prokaryotes are synthesized on ribosomes bound to the cytoplasmic surface of the plasma membrane. ...
... A) Prokaryotes cannot secrete proteins because they lack an endomembrane system. B) The mechanism of protein secretion in prokaryotes is probably the same as that in eukaryotes. C) Proteins secreted by prokaryotes are synthesized on ribosomes bound to the cytoplasmic surface of the plasma membrane. ...
Lecture_8
... Microvilli (mv) are specialized actin-based structures Increases surface area for Absorption by20-fold Villin and fimbrin cross link 20-30 actin filaments in mv Villin introduced into fibroblasts Induces microvilli formation ...
... Microvilli (mv) are specialized actin-based structures Increases surface area for Absorption by20-fold Villin and fimbrin cross link 20-30 actin filaments in mv Villin introduced into fibroblasts Induces microvilli formation ...
Chapter 7: A View of the Cell
... Your cells need nutrients such as glucose, amino acids, and lipids to function. It is the job of the plasma membrane, the flexible boundary between the cell and its environment, to allow a steady supply of these nutrients to come into the cell no matter what the external conditions are. However, too ...
... Your cells need nutrients such as glucose, amino acids, and lipids to function. It is the job of the plasma membrane, the flexible boundary between the cell and its environment, to allow a steady supply of these nutrients to come into the cell no matter what the external conditions are. However, too ...
Getting RNA and Protein in Phase
... the last few decades, another important class of intracellular structures has emerged: organelles that are not bound by a membrane. Instead, these structures self-assemble from a cytoplasmic or nucleoplasmic pool of soluble components, forming a type of aggregate. However, unlike the irreversible pr ...
... the last few decades, another important class of intracellular structures has emerged: organelles that are not bound by a membrane. Instead, these structures self-assemble from a cytoplasmic or nucleoplasmic pool of soluble components, forming a type of aggregate. However, unlike the irreversible pr ...
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[PDF]
... the last few decades, another important class of intracellular structures has emerged: organelles that are not bound by a membrane. Instead, these structures self-assemble from a cytoplasmic or nucleoplasmic pool of soluble components, forming a type of aggregate. However, unlike the irreversible pr ...
... the last few decades, another important class of intracellular structures has emerged: organelles that are not bound by a membrane. Instead, these structures self-assemble from a cytoplasmic or nucleoplasmic pool of soluble components, forming a type of aggregate. However, unlike the irreversible pr ...
Tissues Response to Injury
... refers to ‘Structural Abnormalities’ of which there are 10 groups including Inflammation, Thrombosis and Neoplasia. • ‘Tissue Response to Injury’ Concept include the concept of Degeneration and Necrosis for Reversible and Irreversible Injury respectively! • You as students of Pathology should apprec ...
... refers to ‘Structural Abnormalities’ of which there are 10 groups including Inflammation, Thrombosis and Neoplasia. • ‘Tissue Response to Injury’ Concept include the concept of Degeneration and Necrosis for Reversible and Irreversible Injury respectively! • You as students of Pathology should apprec ...
iGCSE revision notes topic 2 (Part 1) Cells, animal
... formation of carbohydrates and their subsequent storage State the balanced equation for photosynthesis in symbols Investigate and state the effect of varying light intensity, carbon dioxide concentration and temperature on the rate of photosynthesis (e.g. in submerged aquatic plants) Define the term ...
... formation of carbohydrates and their subsequent storage State the balanced equation for photosynthesis in symbols Investigate and state the effect of varying light intensity, carbon dioxide concentration and temperature on the rate of photosynthesis (e.g. in submerged aquatic plants) Define the term ...
4327
... numerous, highly motile caveolin-1-GFP-positive vesicles were present within the cell interior. These vesicles moved at speeds ranging from 0.3-2 µm/second and movement was abolished when microtubules were depolymerized with nocodazole. In the absence of microtubules, cell surface invaginated caveol ...
... numerous, highly motile caveolin-1-GFP-positive vesicles were present within the cell interior. These vesicles moved at speeds ranging from 0.3-2 µm/second and movement was abolished when microtubules were depolymerized with nocodazole. In the absence of microtubules, cell surface invaginated caveol ...
pteridophyta - Institutul de Biologie
... For electron microscopy studies the mesophyll cells of the leaves from both in vitro culture as well as from native plants were used. These were processed by a conventional method (Mascorro and Bozola, 2007; Kuo, 2007): pre fixation in a solution of 3% glutaraldehyde in Na cacodylate buffer at 0.2M ...
... For electron microscopy studies the mesophyll cells of the leaves from both in vitro culture as well as from native plants were used. These were processed by a conventional method (Mascorro and Bozola, 2007; Kuo, 2007): pre fixation in a solution of 3% glutaraldehyde in Na cacodylate buffer at 0.2M ...
Multi-lineage `stem` cells in the mammalian embryo
... tissues the task of making good all losses is believed to depend ultimately on the mitotic activity of a discrete subpopulation of relatively undifferentiated cells. A key attribute of these ‘stem’ cells is that they normally include among their progeny, cells which retain the same position as thems ...
... tissues the task of making good all losses is believed to depend ultimately on the mitotic activity of a discrete subpopulation of relatively undifferentiated cells. A key attribute of these ‘stem’ cells is that they normally include among their progeny, cells which retain the same position as thems ...
10.2 pp (Biology 2015-16)
... During telophase, the fourth and final phase of mitosis, the chromosomes spread out into a tangle of chromatin. A nuclear envelope re-forms around each cluster of chromosomes. The spindle breaks apart, and a nucleolus becomes visible in each daughter nucleus. ...
... During telophase, the fourth and final phase of mitosis, the chromosomes spread out into a tangle of chromatin. A nuclear envelope re-forms around each cluster of chromosomes. The spindle breaks apart, and a nucleolus becomes visible in each daughter nucleus. ...
The Organization Pattern of Root Border
... et al., 2006), which all have been reported to be possibly affected in pectin biosynthesis; (2) murus2-1 (mur2-1) and mur3, which make altered xyloglucan (Vanzin et al., 2002; Madson et al., 2003); and (3) radially swollen1 (rsw1) and korrigan1 (kor1), which are affected in cellulose biosynthesis (A ...
... et al., 2006), which all have been reported to be possibly affected in pectin biosynthesis; (2) murus2-1 (mur2-1) and mur3, which make altered xyloglucan (Vanzin et al., 2002; Madson et al., 2003); and (3) radially swollen1 (rsw1) and korrigan1 (kor1), which are affected in cellulose biosynthesis (A ...
A View of the Cell
... Your cells need nutrients such as glucose, amino acids, and lipids to function. It is the job of the plasma membrane, the flexible boundary between the cell and its environment, to allow a steady supply of these nutrients to come into the cell no matter what the external conditions are. However, too ...
... Your cells need nutrients such as glucose, amino acids, and lipids to function. It is the job of the plasma membrane, the flexible boundary between the cell and its environment, to allow a steady supply of these nutrients to come into the cell no matter what the external conditions are. However, too ...
AthPEX10, a nuclear gene essential for peroxisome and storage
... (10). PEX10-deficient cells in humans show peroxisome shells that import membrane proteins, but no matrix proteins. Therefore, targeting of human PEX10p to peroxisome membranes can be uncoupled from the matrix protein import machinery (4, 7, 11). Loss of PEX10p leads to Zellweger syndrome, a severe ...
... (10). PEX10-deficient cells in humans show peroxisome shells that import membrane proteins, but no matrix proteins. Therefore, targeting of human PEX10p to peroxisome membranes can be uncoupled from the matrix protein import machinery (4, 7, 11). Loss of PEX10p leads to Zellweger syndrome, a severe ...
Diffusion and Membranes
... enzymes which may catalyse reactions. Can be gated or nongated. Gated are important for Ca+, Na+ & K+ and muscle/nerve operation ...
... enzymes which may catalyse reactions. Can be gated or nongated. Gated are important for Ca+, Na+ & K+ and muscle/nerve operation ...
Developmental Biology Brochure
... N-STORM**, also based on the Eclipse Ti, provides multi-spectral 2-D and 3-D nanoscale imaging of cellular structures and, in principle, imaging at the molecular scale in fixed specimens. STORM (stochastic optical reconstruction microscopy) technology constructs a fluorescence image from the highly ...
... N-STORM**, also based on the Eclipse Ti, provides multi-spectral 2-D and 3-D nanoscale imaging of cellular structures and, in principle, imaging at the molecular scale in fixed specimens. STORM (stochastic optical reconstruction microscopy) technology constructs a fluorescence image from the highly ...
Extracellular matrix
In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).