Re: [ccp4bb] Importance of temperature during initial crystallization screening

2019-08-02 Thread Amir Khan
Hate to self-promote, but these crystals were interesting, At 30deg, two crystal forms co-existed with inverted solubility - one form melted when cooled, the other melted upon heating. https://www.sciencedirect.com/science/article/abs/pii/S0006349519305879

Re: [ccp4bb] Importance of temperature during initial crystallization screening

2019-08-02 Thread John R Helliwell
Dear Sergei, There is also this high temperature crystallisation study of lysozyme, up to 55 degrees C:- https://febs.onlinelibrary.wiley.com/doi/abs/10.1016/0014-5793%2872%2980273-4 Best wishes, John Emeritus Professor John R Helliwell DSc > On 1 Aug 2019, at 10:23, Sergei Strelkov wrote: >

Re: [ccp4bb] Importance of temperature during initial crystallization screening

2019-08-02 Thread Jared Sampson
Dear all - I have also had success with crystallization above room temperature.  I once grew diffracting crystals of a small, thermostable enzyme by incubating the plates in a 37°C bacterial culture incubator, and despite similar reservoir conditions, these high-temperature crystals grew in a

Re: [ccp4bb] Improve your previously released coordinates with OneDep

2019-08-02 Thread Jonathan Cooper
Thank you for that. Good idea to look at the policy. I think it would be classed as a minor change after release: https://www.wwpdb.org/documentation/policy#toc_changes "Update or change on structure factor or constraint file due to format corrections or addition of data set while coordinates

Re: [ccp4bb] Importance of temperature during initial crystallization screening

2019-08-02 Thread Sarah Bowman
Temperature is an interesting parameter, but I agree with Janet and others that it is difficult to predict what will work best. At the High-Throughput Crystallization Screening Center, we typically run 23C, 14C, or 4C screening experiments to screen for initial crystallization conditions. We

Re: [ccp4bb] Improve your previously released coordinates with OneDep

2019-08-02 Thread Jonathan Cooper
Hello David I note that no changes will be allowed to the experimental data, but if there are no experimental data, will the depositor be allowed to upload it/them, without starting a new deposition? I'm finding a few reflection files that ought to be deposited so that the corresponding

Re: [ccp4bb] Improve your previously released coordinates with OneDep

2019-08-02 Thread Robbie Joosten
Hi Jonathan, It would be great if you deposit missing reflection data. It is very commendable. I don't know what the policy is, but I have seen quite a few legacy entries for which the data were deposited (or corrected) much later than the model. Sometimes more than 20 years. These kept the