Hi Refmac use one letter code for RNA and two letter for DNA. Otherwise each residue is considered as one chain (if there is no link between them).
I hope it helps. regards Garib On 31 Oct 2012, at 08:05, jp d wrote: > > hi, > answering my own question, but maybe this will > save some searching in the future, > the error was related to 3 letter RNA codes > refmac doesn't like that. > > jpd > > > --- On Tue, 10/30/12, jp d <yo...@yahoo.com> wrote: > > From: jp d <yo...@yahoo.com> > Subject: [ccp4bb] refmac > To: CCP4BB@JISCMAIL.AC.UK > Date: Tuesday, October 30, 2012, 3:43 PM > > hi, > i have a large pdb file and i keep getting this error with refmac > ERROR: number of chains > 1500 > i suspect something needs to be done to my pdb > any suggestions ? > thanks > jpd Dr Garib N Murshudov Group Leader, MRC Laboratory of Molecular Biology Hills Road Cambridge CB2 0QH UK Email: ga...@mrc-lmb.cam.ac.uk Web http://www.mrc-lmb.cam.ac.uk
