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7.5 Proteins - HS Biology IB
... determined by base sequence in the gene; (largely) determines higher level structures/secondary structure/tertiary structure; secondary structure is regular repeating patterns; such as alpha/α helix and beta/β (pleated) sheet; determined by H bonds (within chain); contributes to the strength of fibr ...
... determined by base sequence in the gene; (largely) determines higher level structures/secondary structure/tertiary structure; secondary structure is regular repeating patterns; such as alpha/α helix and beta/β (pleated) sheet; determined by H bonds (within chain); contributes to the strength of fibr ...
A Few Good Domains
... understood, it appears to involve a highly conserved set of proteins called SNAREs (Soluble NSF Attachment protein [SNAP] Receptors). SNARE proteins are believed to mediate most, if not all, cellular membrane fusion events. Most SNAREs are Cterminally anchored integral membrane proteins capable of e ...
... understood, it appears to involve a highly conserved set of proteins called SNAREs (Soluble NSF Attachment protein [SNAP] Receptors). SNARE proteins are believed to mediate most, if not all, cellular membrane fusion events. Most SNAREs are Cterminally anchored integral membrane proteins capable of e ...
Chapter 3, Section 1 - Nogales High School
... – It binds with ligands on the outside of the cell – Once they bind, the receptor changes shape and sends a message to the inside of the cell ...
... – It binds with ligands on the outside of the cell – Once they bind, the receptor changes shape and sends a message to the inside of the cell ...
Lipid Map of the Mammalian Cell
... occurs late in apoptosis, after which PS is recognized by a PS receptor (Wong et al., 2010) and the apoptotic cell undergoes phagocytosis. In addition, PS exposure on blood cells or platelets signals blood coagulation. Flippases maintain lipid asymmetry, but the net translocation of lipid mass from ...
... occurs late in apoptosis, after which PS is recognized by a PS receptor (Wong et al., 2010) and the apoptotic cell undergoes phagocytosis. In addition, PS exposure on blood cells or platelets signals blood coagulation. Flippases maintain lipid asymmetry, but the net translocation of lipid mass from ...
SpoIIQ Anchors Membrane Proteins on Both Sides of
... (PspoIIQ). Accordingly, this heterologous membrane protein was synthesized at the same time and in the same cellular compartment as SpoIIQ. Silver staining revealed that several other proteins co-purify with CFP-SpoIIQ (Fig. 1A). Importantly, FIGURE 1. SpoIIE and SpoIIQ reside in a membrane complex. ...
... (PspoIIQ). Accordingly, this heterologous membrane protein was synthesized at the same time and in the same cellular compartment as SpoIIQ. Silver staining revealed that several other proteins co-purify with CFP-SpoIIQ (Fig. 1A). Importantly, FIGURE 1. SpoIIE and SpoIIQ reside in a membrane complex. ...
Course Introduction: The Brain, chemistry, neural signaling
... IPSPs will counteract the effect of EPSPs at the same neuron. Summation means the effect of many coincident IPSPs and EPSPs at one neuron. If there is sufficient depolarization at the axon hillock, an action potential will be triggered. ...
... IPSPs will counteract the effect of EPSPs at the same neuron. Summation means the effect of many coincident IPSPs and EPSPs at one neuron. If there is sufficient depolarization at the axon hillock, an action potential will be triggered. ...
Lect22.LipidsCholesterol
... Lipid and cholesterol synthesis intermediate anchors serve to attach certain proteins to membranes. Cholesterol is a membrane constituent needed in all cells. Bile acids used for intestinal fat uptake and nuclear hormones are synthesized from cholesterol. Cholesterol is only synthesized in the liver ...
... Lipid and cholesterol synthesis intermediate anchors serve to attach certain proteins to membranes. Cholesterol is a membrane constituent needed in all cells. Bile acids used for intestinal fat uptake and nuclear hormones are synthesized from cholesterol. Cholesterol is only synthesized in the liver ...
Synaptic Transmission
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, trigger an AP and begin a NI on a neuron. a. +15 mV = threshold = AP = NI; ...
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, trigger an AP and begin a NI on a neuron. a. +15 mV = threshold = AP = NI; ...
Nervous System
... (-50 mv), more Na gates open and an action potential is triggered that results in complete depolarization. • This stimulates neighboring Na gates, further down the neuron, to open. The action potential is an all or none event, always creating the same voltage spike once the threshold is reached. ...
... (-50 mv), more Na gates open and an action potential is triggered that results in complete depolarization. • This stimulates neighboring Na gates, further down the neuron, to open. The action potential is an all or none event, always creating the same voltage spike once the threshold is reached. ...
AP Biology - Mr. Davros` Wiki
... why evolve digestive enzymes which function at pH different from cytosol? digestive enzymes won’t function well if leak into ...
... why evolve digestive enzymes which function at pH different from cytosol? digestive enzymes won’t function well if leak into ...
F1 & F2- Microbes
... Cell Wall Structure: • Gram Negative: – 2 membranes less Peptidoglycan and are structurally more complex with an outer membrane (contains lipopolysaccharides) ...
... Cell Wall Structure: • Gram Negative: – 2 membranes less Peptidoglycan and are structurally more complex with an outer membrane (contains lipopolysaccharides) ...
File
... Answer: Even though water is polar and so highly insoluble in the membrane lipids, it readily passes through the cell membrane for 2 reasons: 1. Water molecules are small enough to move through the monetary spaces created between the phospholipid molecules’ tails as they sway and move within the lip ...
... Answer: Even though water is polar and so highly insoluble in the membrane lipids, it readily passes through the cell membrane for 2 reasons: 1. Water molecules are small enough to move through the monetary spaces created between the phospholipid molecules’ tails as they sway and move within the lip ...
Genetically engineered single-chain antibody fusion proteins
... is carried out with primary or secondary antibodies, that are labeled with sensitive reporter molecules, like fluorescent dyes colorimetric enzymes the chemical labelling is the conventional method for obtaining the conjugates. ...
... is carried out with primary or secondary antibodies, that are labeled with sensitive reporter molecules, like fluorescent dyes colorimetric enzymes the chemical labelling is the conventional method for obtaining the conjugates. ...
Resting Membrane Potential
... 2. What must happen before sodium can rush into the axon? 3. Why does potassium leave the neuron during ...
... 2. What must happen before sodium can rush into the axon? 3. Why does potassium leave the neuron during ...
Sequential steps in clathrin-mediated synaptic vesicle endocytosis
... Endophilin acts as a lysophosphatidic acid acyl transferase (LPAAT; [31••]). By converting lysophosphatidic acid into phosphatidic acid, it may alter the biophysical properties of the lipid bilayer (see below). Some accessory proteins have been shown to interact with actin-regulating proteins. For i ...
... Endophilin acts as a lysophosphatidic acid acyl transferase (LPAAT; [31••]). By converting lysophosphatidic acid into phosphatidic acid, it may alter the biophysical properties of the lipid bilayer (see below). Some accessory proteins have been shown to interact with actin-regulating proteins. For i ...
File
... c) Water will diffuse down its concentration gradient into the liposome, causing it to burst. d) Water will enter the liposome, diluting the sucrose concentration there down to 0 M. ...
... c) Water will diffuse down its concentration gradient into the liposome, causing it to burst. d) Water will enter the liposome, diluting the sucrose concentration there down to 0 M. ...
The role of histidine residues in low-pH-mediated viral
... His125 also fit the pattern observed for the proposed key histidines in the fusion proteins from influenza viruses and flaviviruses. It is possible that other histidines play similar roles in fusion activation, but their identification has to wait until more complete structures become available (e.g ...
... His125 also fit the pattern observed for the proposed key histidines in the fusion proteins from influenza viruses and flaviviruses. It is possible that other histidines play similar roles in fusion activation, but their identification has to wait until more complete structures become available (e.g ...
Lecture 1 Brain Structure
... local membrane potential of the postsynaptic cell and makes the cell more prone to firing arrival of activity at an inhibitory synapse hyperpolarizes the local membrane potential of the postsynaptic cell and makes it less prone to firing the greater the synaptic strength, the greater the depolarizat ...
... local membrane potential of the postsynaptic cell and makes the cell more prone to firing arrival of activity at an inhibitory synapse hyperpolarizes the local membrane potential of the postsynaptic cell and makes it less prone to firing the greater the synaptic strength, the greater the depolarizat ...
Primary Structure of Diphtheria Toxin Fragment B
... active N-terminal fragment A (21,150 daltons) into the cytoplasm where A catalytically ADP-ribosylates elongation factor 2 and, thereby, inhibits protein synthesis of the cell (9) . The primary structure of fragment A and most of its catalytic properties are known (11, 14, 17, 18) . Fragment B has b ...
... active N-terminal fragment A (21,150 daltons) into the cytoplasm where A catalytically ADP-ribosylates elongation factor 2 and, thereby, inhibits protein synthesis of the cell (9) . The primary structure of fragment A and most of its catalytic properties are known (11, 14, 17, 18) . Fragment B has b ...
Concept 2: Analyzing the structure and function of the cell membrane
... How electrical gradients are formed. ...
... How electrical gradients are formed. ...
Cell membranes
... PL = glycerol attached to 2 FA phosphate and different side groups (PE, PS, PC) SM = serine attached to 2FA phosphate and choline side group PI = minor phospholipid critical for signaling; inositol ring can be phosphorylated Cholesterol = complex hydrocarbon ring structure ...
... PL = glycerol attached to 2 FA phosphate and different side groups (PE, PS, PC) SM = serine attached to 2FA phosphate and choline side group PI = minor phospholipid critical for signaling; inositol ring can be phosphorylated Cholesterol = complex hydrocarbon ring structure ...
File
... (neurotransmitters). The NT are produced in the body & conducted along the axon (anterograde flow). The NT can be inhibitory or excitatory. • Synaptic cleft or gap: is app. 20nm. It is a non-anatomical continuity between the post and pre-synaptic ends. • Postsynaptic terminal: is the name given to t ...
... (neurotransmitters). The NT are produced in the body & conducted along the axon (anterograde flow). The NT can be inhibitory or excitatory. • Synaptic cleft or gap: is app. 20nm. It is a non-anatomical continuity between the post and pre-synaptic ends. • Postsynaptic terminal: is the name given to t ...
SNARE (protein)
![](https://commons.wikimedia.org/wiki/Special:FilePath/Exocytosis-machinery.jpg?width=300)
SNARE proteins (an acronym derived from ""SNAP (Soluble NSF Attachment Protein) REceptor"") are a large protein superfamily consisting of more than 60 members in yeast and mammalian cells. The primary role of SNARE proteins is to mediate vesicle fusion, that is, the fusion of vesicles with their target membrane bound compartments (such as a lysosome). The best studied SNAREs are those that mediate docking of synaptic vesicles with the presynaptic membrane in neurons. These SNAREs are the targets of the bacterial neurotoxins responsible for botulism and tetanus.