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Gramicidin Channel in Lipid Bilayer
|theoretically, and hence should be interpreted with caution.|
Theoretical model of gramicidin in a lipid bilayer (phosphatidyl ethanolamine).
Two copies of the gramicidin protein are shown here () arranged as they are believed to be when they form a channel through a lipid bilayer membrane. The shape of the protein is shown transparent (ghostly), and a backbone trace connecting the alpha carbon atoms of each amino acid chain is opaque (solid).
- Show of the gramicidin protein chains.
- (Most hydrogen atoms are omitted.)
- Show . Notice how the hydrophobic lipid "tails" exclude water.
- Water passes .
|Remember to use the popup button and then resize the popup window to enlarge the molecular scenes.|
- A detailed explanation and tutorial about Lipid Bilayers and the Gramicidin Channel.
- This model in FirstGlance in Jmol. Be sure to click the Ligands+ and Water buttons!
- BioMolecular Explorer 3D, a resource for high school teachers that includes a section on gramicidin in a lipid bilayer.
- High school teachers' resources
- The Spanish version of this page: Canal de gramicidina en bicapa lipídica (Spanish)
- For additional information, see: Membrane Channels & Pumps
- The PDB file shown here, Image:Gramicidin in bilayer.pdb.gz, was kindly provided by Serge Crouzy.
- To load the scenes on this page into the SAT, change the page name to User:Eric_Martz/Sandbox_10, where these scenes were developed.