On 24 Apr 2009, at 23:09, Engin Ozkan wrote:

> Hi everyone,
>
> We just realized in the lab that the dimethyl-lysine in the ccp4  
> monomer database (MLY) has planar tertiary amines, instead of  
> trigonal pyramid with ~109º degree angles (which we have fixed for  
> our purposes). Is there a place to report such matters to, or is  
> this a good enough place for that?  Actually the cif file has only a  
> minimal (and inaccurate) description, and libcheck/refmac generates  
> a planar amine with that.  Are these minimal descriptions in the  
> monomer library what was intended for users to build upon, or are  
> they more final, authoritative files?
>
> Thanks,
>
> Engin