[ccp4bb] Anomalous maps from twinned crystal

Dear colleagues, We have data from a twinned crystal (merohedral twinning with fraction of 0.71) for which we want to see the anomalous map. Could you please guide me how to calculate it using the i2? Running refinement with REFMAC5 with merohedral twinning does not allow simultaneous generation

[ccp4bb] oily material at cold stream tip

So here is a new one, I seem to have an oily substance at the end of our Oxford Cryostream. It is greenish in color and I honestly have no idea where it may be originating from. The tubes leading into the head look clean. I first noticed it on the paddle I use to block it when mounting crysta

[ccp4bb] Brazil offers oportunities for researchers from countries involved in war-affected countries

Please have a look at: https://fapesp.br/15402/initiative-researchers-at-risk. Best regards Cristy -- *Cristina Nonato, Cristy, Cris, Cristininha* Associate III Professor Laboratório de Cristalografia de Proteínas Faculdade de Ciências Farmacêuticas de Ribeirão Preto - USP #

Re: [ccp4bb] Maps on mobile phones.

Hi Phoebe - Your email got me wondering about this as well, so over the weekend I downloaded BioViewer (simple and relatively intuitive, few customizable options), and iMolview (more complex user interface, with more information—e.g. sequence, chain IDs—and more granular control of representation)

[ccp4bb] Postdoc position at Imperial College, London

Dear all, A postdoctoral position is available in the lab focussed on understanding the role and mechanism of ESCRT-III-like membrane remodelling proteins in bacteria (for example https://pubmed.ncbi.nlm.nih.gov/34166615/). Core techniques will include cryoEM SPA and tomography. The position is