Re: [ccp4bb] Problem in molecular replacement

2014-07-24 Thread FOOS Nicolas
; [duskyde...@gmail.com<mailto:duskyde...@gmail.com>] > Envoyé : jeudi 24 juillet 2014 13:50 > À : CCP4BB@JISCMAIL.AC.UK<mailto:CCP4BB@JISCMAIL.AC.UK> > Objet : [ccp4bb] Problem in molecular replacement > > DEAR ALL > I am trying to solve the structure of a protein DNA complex

Re: [ccp4bb] Problem in molecular replacement

2014-07-24 Thread dusky dew
JISCMAIL.AC.UK] de la part de dusky dew [ duskyde...@gmail.com] > Envoyé : jeudi 24 juillet 2014 13:50 > À : CCP4BB@JISCMAIL.AC.UK > Objet : [ccp4bb] Problem in molecular replacement > > DEAR ALL > I am trying to solve the structure of a protein DNA complex with molecular replacement. T

Re: [ccp4bb] Problem in molecular replacement

2014-07-24 Thread FOOS Nicolas
s has over-hang. Nicolas De : CCP4 bulletin board [CCP4BB@JISCMAIL.AC.UK] de la part de dusky dew [duskyde...@gmail.com] Envoyé : jeudi 24 juillet 2014 13:50 À : CCP4BB@JISCMAIL.AC.UK Objet : [ccp4bb] Problem in molecular replacement DEAR ALL I am trying to solv

Re: [ccp4bb] Problem in molecular replacement

2014-07-24 Thread Randy Read
In addition to that good suggestion, with a model at such high sequence identity and with reasonable resolution data, it would be a good idea to search for smaller models, like a single dimer or even a monomer, because the assembly may have changed conformation. Another possibility you should c

Re: [ccp4bb] Problem in molecular replacement

2014-07-24 Thread Antony Oliver
Try using DNA as a search model - this has worked very successfully in our hands before. Tony. - - - - - - - - - - - - - - - - - - Dr Antony W Oliver Senior Research Fellow CR-UK DNA Repair Enzymes Group Genome Damage and Stability Centre Science Park Road University of Sussex Falmer, Brighton,

[ccp4bb] Problem in molecular replacement

2014-07-24 Thread dusky dew
DEAR ALL I am trying to solve the structure of a protein DNA complex with molecular replacement. The resolution in about 2.5 angstrom. The spacegroup is P21. The search model has about 50% identity and is a dimer of a dimer. The problem is the unit cell is huge and so the number of molecules in as