AMBER Archive (2004)

Subject: AMBER: back interpret

From: Joshua Hicks (
Date: Wed Sep 15 2004 - 16:49:57 CDT

    I'm trying to back interpret some Amber files to get NMR dihedral
restraints. I've looked at the Amber page at the DNA example, but it
doesn't help me with the protein files. I've also looked at the Amber 8
manual, but because we don't have Amber I have no way of testing whether
or not I'm getting it right. I am trying to calculate PHI angles.
    Here is one residue:

&rst iat= 82, 84, 86, 100, r1=-170.0, r2=-160.0, r3= -80.0, r4=
-70.0, &end

I do not know what the PHI angle is supposed to be for this residue and
none of the numbers (82, 84, 86, 100) seem to correlate to any of the
backbone atom numbers in the pdb file (1XOB).

Thank you for any help.

Regards, Josh
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