Jens You have a choice. You can find (if it's there) an Chemical Component entry that has the phosphate as part of the 3-letter code or you can find the phosphate moiety as a separate residue. In Phenix 1.10, this will be automatically linked and the LINK record written to the PDB output. I can help if you desire. Cheers Nigel --- Nigel W. Moriarty Building 33R0349, Physical Biosciences Division Lawrence Berkeley National Laboratory Berkeley, CA 94720-8235 Phone : 510-486-5709 Email : [email protected] Fax : 510-486-5909 Web : CCI.LBL.gov On Mon, Sep 21, 2015 at 9:34 AM, jens j birktoft wrote:

Hi everyone I need some suggestions for a CIF file for a 5'-phosphate moiety that is part of the nucleotide (CYT in this case) located at the start of a DNA strand (5' end) to be used in refinement in both PHENIX and COOT. All suggestions are appreciated. Cheers Jens

-- +++++++++++++++++++++++++++++++++++++++++++++++++++ Jens J. Birktoft Structural DNA Nanotechnology New York University e-mail: [email protected] ; Phone: 212-749-5057 very slow-mail: 350 Central Park West, Suite 9F, New York, NY 10025 +++++++++++++++++++++++++++++++++++++++++++++++++++

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