Image:Pi helix neg55 neg70 sideview.png

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[edit] Summary

Close-up sideview of a "stick" model of a pi helix of poly-alanine using the dihedral angles φ=-55° and ψ=-70° and the Engh&Huber bond geometry. Two hydrogen bonds are highlighted in magenta; the O-H distance is 1.65 Å (165 pm). The PDB file was made by me on 18 October 2006 using my own software and visualized by me using MOLMOL. I release this image under the GFDL.

[edit] Licensing

I, the author of this work, hereby publish it under the following license:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".

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