Re: [ccp4bb] Seeded rescreening with robot?

2011-10-29 Thread Pius Padayatti
I have few personal remarks about revere matrix seeding protocol suggested here just an addition to Artems suggested protocol harvesting the whole drop of interest invite guaranteed salt crystals in the second round especially if one is using the same screen back. If one found crystals all over

Re: [ccp4bb] Seeded rescreening with robot?

2011-10-29 Thread Bosch, Juergen
Hm, I wouldn't call these micro crystals anymore, I mount those things and get datasets from them (sometimes). In my world 50 µm is defined as big. Jürgen On Oct 29, 2011, at 2:51 PM, Pius Padayatti wrote: In short if you found microcrystals (15 to 20 um) harvesting them is what i found is

[ccp4bb] Seeded rescreening with robot?

2011-10-28 Thread Watson, Randy
Hi all, I am trying to optimize crystals and have heard of a technique where one can prepare a seedstock from existing crystals and use it to broadly re-screen from scratch for hits in new conditions. I have access to a mosquito robot and was wondering if anyone has a protocol or

Re: [ccp4bb] Seeded rescreening with robot?

2011-10-28 Thread Artem Evdokimov
I would be glad to share ours. Artem On Oct 28, 2011 1:29 PM, Watson, Randy ewats...@uthsc.edu wrote: Hi all, I am trying to optimize crystals and have heard of a technique where one can prepare a seedstock from existing crystals and use it to broadly re-screen from scratch for hits in new

Re: [ccp4bb] Seeded rescreening with robot?

2011-10-28 Thread Artem Evdokimov
By popular request here's my favorite version of the in-screen seeding. We use a Mosquito but it doesn't have to be a specific robot as long as it can dispense relatively tiny volumes of seed stock. Caveats: (1) if I am desperate enough to do this, then the situation is pretty bad indeed and I