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The potassium channel is an integral membrane protein consisting of four identical subunits. Because it is located in the membrane, its hydrophobic groups are located on the outside of the structure, where they interact with the lipids inside the membrane. The interior of the channel, meanwhile, is hydrophobic with polar groups to interact with potassium cations. <scene name='Sandbox7/Hydrophobic_alpha-helices/1'>Hydrophobic residues</scene> are located on the outside of the alpha helices. | The potassium channel is an integral membrane protein consisting of four identical subunits. Because it is located in the membrane, its hydrophobic groups are located on the outside of the structure, where they interact with the lipids inside the membrane. The interior of the channel, meanwhile, is hydrophobic with polar groups to interact with potassium cations. <scene name='Sandbox7/Hydrophobic_alpha-helices/1'>Hydrophobic residues</scene> are located on the outside of the alpha helices. | ||
Adam Nelson | |||
When you exam the protein with <scene name='Sandbox7/No_helices/1'>no helices</scene> visible, it is clear that the protein binds ligand and has a four subunits structure similar to hemoglobin. | |||
Information from [[1bl8]]. | Information from [[1bl8]]. | ||
{{STRUCTURE_1bl8 | PDB=1bl8 | SCENE= }} | {{STRUCTURE_1bl8 | PDB=1bl8 | SCENE= }} | ||
Revision as of 05:37, 4 March 2009
This sandbox is in use until June 1, 2009 for UMass Chemistry 490a. Others please do not edit this page. Thanks! ' Abraham Khorasani
The potassium channel is an integral membrane protein consisting of four identical subunits. Because it is located in the membrane, its hydrophobic groups are located on the outside of the structure, where they interact with the lipids inside the membrane. The interior of the channel, meanwhile, is hydrophobic with polar groups to interact with potassium cations. Hydrophobic residues are located on the outside of the alpha helices.
Adam Nelson
When you exam the protein with no helices visible, it is clear that the protein binds ligand and has a four subunits structure similar to hemoglobin. Information from 1bl8.
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| 1bl8, resolution 3.20Å (default scene) | |||||||||||||
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| Ligands: | K | ||||||||||||
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| Resources: | FirstGlance, OCA, RCSB, PDBsum | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
