Re: [ccp4bb] zinc with HEPES/seeding

2012-05-11 Thread Rajesh Kumar
Dear Patrick, You along with others had made some suggestions last time. May be its a good time to update. With classical screening, I got a crystal like appearances/shower with HEPES 7.5 and LiSo4 1.5M. Trying to vary the pH of Hepes or using Tris and with different conc of Lithium I could

Re: [ccp4bb] zinc with HEPES/seeding

2012-05-11 Thread Jacob Keller
mitegen loops might help, particularly micromesh... JPK On Fri, May 11, 2012 at 12:35 PM, Rajesh Kumar ccp4...@hotmail.com wrote: Dear Patrick, You along with others had made some suggestions last time. May be its a good time to update. With classical screening, I got a crystal like

Re: [ccp4bb] zinc with HEPES/seeding

2012-05-11 Thread Patrick Shaw Stewart
It sounds as though microseeding worked very well, but the crystals are still growing far too quickly. Try diluting the protein and/or the reservoir solution to half the concs you are using or lower. To have enough protein you need larger drops, say 500 + 500 + 200 by hand if you can't do it