User:Alex Pennington/Sandbox 1: Difference between revisions
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The ion channel of the protein is a 20 membered alpha helix bundle. This channel also contributes to the receptor function in three critical aspects: it contains a gating mechanism, it contains a water pore to stabalize ions, and it has a selectivity filter for ion charge. As with most transmembrane alpha helix bundles, it is hydrophobic around the edges to effectively be supported within the membrane, and it is hydrophilic on the inner portion to transport charged ions. | The ion channel of the protein is a 20 membered alpha helix bundle. This channel also contributes to the receptor function in three critical aspects: it contains a gating mechanism, it contains a water pore to stabalize ions, and it has a selectivity filter for ion charge. As with most transmembrane alpha helix bundles, it is hydrophobic around the edges to effectively be supported within the membrane, and it is hydrophilic on the inner portion to transport charged ions. | ||
== Physiology == | |||
The receptor is a cylidrically-shaped protein. It is embedded in the cell wall of post synaptic nerves at the skeletal neuromuscular junction. The receptor acts as a chemically controlled sodium (Na) channel also known as a [[ligand gated channel]]. | The receptor is a cylidrically-shaped protein. It is embedded in the cell wall of post synaptic nerves at the skeletal neuromuscular junction. The receptor acts as a chemically controlled sodium (Na) channel also known as a [[ligand gated channel]]. | ||
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'''F'''riday '''F'''asciculations | '''F'''riday '''F'''asciculations | ||
== References == | == References == | ||
1. Cholinesterase Inhibitors: Including Insecticides and Chemical Warfare Nerve Agents, ''Agency for Toxiz Substances and Disease Regulation'' '''accessed 5/2/14''' | |||
2. Pierre-Jean Corringer and Jean-Pierre Changeux (2008) Nicotinic acetylcholine receptors. Scholarpedia, 3(1):3468. | |||
3. Adcock C, Smith GR, Sansom MS. The nicotinic acetylcholine receptor: from molecular model to single-channel conductance. Eur Biophys J. 2000;29:29–37. |