Keywords: Gramicidin A.gif 3D rotating image of Gramicidin A See ref Lomize A L Orekhov V I u Arsen`ev A S Refinement of the spatial structure of the gramicidin A ion channel Biol Membr USSR v18 pp 182-200 1992 The apparent bulkiness or distortion found in the side chains is a result of uncertainty in the crystal structure - a feature found in many crystal structures but especially pronounced in proteins English Wikipedia http //en wikipedia org/wiki/Image 1GRM gif 2007-07-25 Jeremiah Ion channels Gramicidin |