Re: [ccp4bb] SAD phasing at home source

2009-10-27 Thread Watanabe Nobuhisa
If your crystal diffracts well and tough enough for high redundant data collection, no HA or using sulfur in your protein will be the first choice. Even at Cu K-alpha. I think... N. Watanabe On 2009/10/27, at 3:32, james09 pruza wrote: Dear All, I need some suggestions regarding the SAD p

Re: [ccp4bb] Crystal vacuum cleaner

2009-03-28 Thread Watanabe Nobuhisa
Does your system eliminate the need for cryoprotection? Since the method removes water on the crystal before freezing, in some cases, we can go with lower concentration of cryoprotectant, like Paratone-N. But I usually use cryoprotectant for safety. Also, how do you time the buffer-remova

Re: [ccp4bb] Crystal vacuum cleaner

2009-03-26 Thread Watanabe Nobuhisa
I am not sure this is the answer for your question, but please check, http://www.nusrc.nagoya-u.ac.jp/WatanabeLab/XtalMount/index.html We named it as a "loopless" mounting method in the paper, but now we leave the loop... The vacuum cleaner I have used for the method is "my mouth". But we h

Re: [ccp4bb] Summary: cryoloops for X-ray data collection from protein crystals at room temperature.

2009-01-22 Thread Watanabe Nobuhisa
If you will use the Nextal device, I have also modified it something like fig.2 for checking crystals in the drop at room temperature. It is not difficult to make, too. Please see, http://journals.iucr.org/j/issues/2005/02/00/he5324/he5324bdy.html However, getting the film I have used in the