[phenixbb] DNA covalent bond angles deviate from PDB standard dictionary

Ralf W. Grosse-Kunstleve rwgk at yahoo.com
Wed Jan 5 12:31:58 PST 2011

Hi Scott,

> angle pdb=" O4'  DG D   6  "

>       pdb=" C1'  DG D   6 "
>        pdb=" N9   DG D   6 "
>     ideal   model    delta    sigma   weight residual
>    108.40   110.18   -1.78 3.00e+00 1.11e-01 3.52e-01

The "ideal" value originates from


which has not changed for many years.
I'm very surprised that the PDB is flagging these long-standing CCP4 monomer
library values. I suggest you explain to the PDB that the angles in question
are expected results.


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