[phenixbb] DNA restraints

Hi, Is there a way to restrain selected hydrogen bonds between base pairs during the refinement of DNA structures ? CNS has something like DNA_RNA.def if I remember correctly and I am looking for something of that nature. Cheers Jens -- Jens J. Birktoft - e-mail: [email protected] slow-mail: 350 Central Park West, Suite 9F, New York, NY 10025 use 212-749-5057 for ALL phone calls