>From the page on Ramachandran plots
http://www.cryst.bbk.ac.uk/PPS/course/3_geometry/rama.html
Sheet: Phi -60 -> -150, Psi +90 -> +180
Alpha helix (R handed): Phi -60 -> -150, Psi -45 -> -60
This is very approximate - practice looking at a few Ramachandran
plots. Or generate one for the protein you're interested in.
Glenn. (T group)
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Glenn Proctor Protein Structure Research Group Voice: +44 (0) 904 432573
Internet: proctor@yorvic.york.ac.uk Fax: +44 (0) 904 432519
WWW: http://www.yorvic.york.ac.uk/~proctor/
York University Protein Structure Research Group, Heslington, York, England.
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