AMBER Archive (2008)

Subject: AMBER: question about the improper torsion

From: Harry (Yicun) Ni (edycni_at_gmail.com)
Date: Fri Jul 11 2008 - 11:34:17 CDT

Hello everyone,

For an improper torsion as A (A-B-C-D)
                                            |
                                           C
                                         / \
                                       B D
Which two planes form the improper dihedral angle using in energy
calculation?
(ACB--ACD, ACB--BCD or BCD--ACD?) Thank you very much.

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