Hi Reza, If you are looking for a molecular replacement model, we typically use single-stranded or double-stranded poly-uridine, which you can generate with Coot.
Best, -Jinwei --------------------------------------------- Jinwei Zhang Laboratory of Molecular Biology NIDDK, NIH 50 South Drive, Room 4503 Bethesda, MD 20892 Tel: 301-402-4703 https://www-mslmb.niddk.nih.gov/zhang/zhanglab.html ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/