You may need to

1) modify _chem_comp.group to be "DNA" in the cif-file

2) import the resulting cif-file in coot

Cheers

Sent on a Sprint Samsung Galaxy S® III

-------- Original message --------

From: "Wang, Wei" <[log in to unmask]>

Date:07/15/2014 5:14 AM (GMT-05:00)

To: [log in to unmask]

Subject: [ccp4bb] The modified DNA could not be linked to the downstream DNA in the COOT?

Hi,

There is a problem about modified DNA refinement.

I generated one CIF file of a modified DNA base using eLBOW software of PHENIX. However I found the modified DNA could not be linked to the downstream DNA when I refined it in the COOT. Then I generated another CIF file using sketcher of CCP4, but the problem still existed.

Is there any expert to help me?

Thanks!!

Best

Wei