Re: [ccp4bb] Question about small molecule crystallography

2020-06-02 Thread Jessica Bruhn
Hi Jiyuan, I don't have much to add on the small molecule crystallization advice, but I will put in another plug for electron diffraction (microED). You could first check to see if you already have microcrystal by performing some X-ray powder diffraction or XRPD (many CROs offer this service). If

Re: [ccp4bb] Completeness question

2020-06-02 Thread Clemens Vonrhein
Dear all, On Mon, Jun 01, 2020 at 11:48:41PM +0200, vincent Chaptal wrote: > since I've been contacted off line several times about this, I'm > posting here the protocol to combine maps with 2 mtz files of > original and truncated data. If this is of wider interest (and since some of our tools

[ccp4bb] Job posting

2020-06-02 Thread Ceska Tom
We are looking for a Structural Biologist to head up a group in the Protein Structure and Biophysics department. Job ID: 67082 Role overview The Protein Structure and Biophysics department, within the R sector of UCB, comprises 4 sub-groups: Protein Production, Protein Structure, Protein

Re: [ccp4bb] [EXTERNAL] Re: [ccp4bb] Question about small molecule crystallography

2020-06-02 Thread Joseph Ferrara
I would like to point out Rigaku has organized two sets of lectures, via Zoom webinar, on the practical aspects of small molecule crystallography. The first set of lectures started yesterday while the second set is scheduled to start July 6. The first lecture, an introduction, is available

Re: [ccp4bb] Question about small molecule crystallography

2020-06-02 Thread Tim Gruene
Dear Francois, provided you are not restricted to the trademark term 'microED', but open minded to include '3D electron crystallography', there are plenty of published structures of small compounds, both organic and inorganic. Several of them date back to 2005, and include complex structures like

Re: [ccp4bb] Question about small molecule crystallography

2020-06-02 Thread hoh
Hi everyone Pr Tamir gonen (UCLA, los Angeles) have solved (not published) few chemical compounds structures with mircoED. And, the more important is that crystals were present in the powder (whatever condtions to get it (preciptation, evaporation ..). I have myself test with 2 powders

Re: [ccp4bb] Question about small molecule crystallography

2020-06-02 Thread Harry Powell - CCP4BB
Hi Just to echo what has been said before, and expand a little. (*) 5mm NMR tubes are wonderful for growing small molecule crystals in the way Artem describes - partly because they have _extremely_ smooth interior surfaces with few nucleation points - so you tend to get fewer, bigger