Re: [ccp4bb] solving structure of which 70% is known

2007-09-04 Thread Christian Biertumpfel
Hi Raya, My reply comes late but maybe it is still relevant to you. I have a few suggestions for molecular replacement in phaser: * Input both protein models in your search (define both known structures as ensembles and search for both) * Give higher values (let's say 1.0, 1.2, 1.4) for the "rms

Re: [ccp4bb] solving structure of which 70% is known

2007-08-30 Thread price
Hi, - I think someone already pointed out that you should try P6522. - check that it isn't really a twinned P61 or P65 with 2 per asymmetric unit - buy DNA with BrdU and some more with IdU, and/or grow your protein in SeMet - at your resolution, the more "real" phase info the better! Pho

Re: [ccp4bb] solving structure of which 70% is known

2007-08-30 Thread Eleanor Dodson
Raja Dey wrote: Hello, I am trying to solve a multi-protein DNA complex structure from a 3.6 A native data set. The target structure is a dimer (95 aa in each monomer) in complex with DNA( 15 base pairs) plus a second protein of 131 aa. The data has been scaled to P6(1)22 sp. gr. and