You could try Xenon derivation chamber. DOI: 10.1107/S0907444902011010 Cheers, Jan
On 29/11/17 13:05, Eleanor Dodson wrote: > That depends on the quality of your data and your model! > > I play with refinement and rebuilding - check indicators v > resolution., etc etc (I look at the <Fobs> v <Fcalc> plot from REFMAC > - can show up problems with low resolution data. > > Eleanor > > On 29 November 2017 at 12:46, YUVARAJ I <yuvee...@gmail.com > <mailto:yuvee...@gmail.com>> wrote: > > Dear all > Iodine gave a good anomalous signal at copper k-alpha > wavelength. Thank you everyone for your good suggestions. I could > build the model and refine it and bring the R-factor/ R-free > 0.214/ 0.247 at the resolution of 1.6A (with the previous data set > without anomalous signal, resolution 1.6A). Is there any way to > reduce the R-factor/ R-free further. > > Thanks > > Regards > Yuvaraj > > > > > > On Tue, Nov 14, 2017 at 3:28 PM, YUVARAJ I <yuvee...@gmail.com > <mailto:yuvee...@gmail.com>> wrote: > > Dear all > What are the chemicals which give an anomalous > signal at home source (Cu /K/α radiation) apart from > Lathanides and Zinc acetate. What are the things I should > taken care of to get sufficient anomalous signal to solve the > structure. > > I have crystal data without anomalous signal at 1.76A > resolution. What are theoretical ways possible to solve the > structure when there is no homologous structures available in > the PDB. > > Note: There is one cysteine and one methionine in 176 AA > length protein. > > Thanks > Yuvaraj > > -- > > > > > -- > > >
