Doesn't lsqkab work? It just needs proper atom matching. Coot definitely does superimpose DNA. One problem is that simple-lsq works on a single chain, but you can trick it by changing chain id and renumbering the other strand.
As for helix rotation, you can derive it from rotation reported by lsq. But it is more common to look at DNA geometry directly for changes (3DNA or Curves+). -------- Original message -------- From: "Veerendra Kumar (Dr)" <veeren...@ntu.edu.sg> Date: 04/12/2013 2:18 AM (GMT-05:00) To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] DNA structures superimpose Dear CCP4 members, Is there any program to superimpose the DNA structures? I also want to measure the relative domain rotation angle. I tried using DynDom but it does not work for me. Can someone suggest a program which can output the rotation angles? Thank you Best Regards Veerendra kumar CONFIDENTIALITY:This email is intended solely for the person(s) named and may be confidential and/or privileged.If you are not the intended recipient,please delete it,notify us and do not copy,use,or disclose its content. Towards A Sustainable Earth:Print Only When Necessary.Thank you.
