Re: [ccp4bb] Microseeding technique advice

2013-05-30 Thread Kelly Daughtry
DLadakis, The seed stock solution should be your crystallization solution with a slight (5% maybe) increase in the precipitant. In my experience, I have not needed additional protein to stabilize the nano-crystals, but as with all things, every protein is different. The idea is the crystals should

Re: [ccp4bb] Microseeding technique advice

2013-05-30 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dear DLadakis, you are probably thinking of using a robot for seeding. For manual seeding you would overcome the problem of a stock solution by using a cat whisker for seeding. Manual seeding also has the advantage of getting a much better feeling for

[ccp4bb] Microseeding technique advice

2013-05-30 Thread dladakis
Dear all I would like your advice on preparing a seed stock for microseeding. Should the seed stabilizing stock soltion include soluble protein as well. If it doesn't will the seeds eventually disolve leading to an unsuccesfull screen? Also how is the seedstock supposed to look under the microscop