Re: [ccp4bb] sugestions on weak diffracting protein crystals

2021-05-18 Thread Natesh Ramanathan
Dear Deepak, I have a few suggestions: 1) First you can send it to synchrotrons, particularly microfocus beamlines and shoot as many good in-house diffracting crystals. 2) Setting up crystallisation by micro batch method under Al's oil at various vapour exchange rate may help. But

[ccp4bb] AW: [ccp4bb] sugestions on weak diffracting protein crystals

2021-05-18 Thread Schreuder, Herman /DE
Dear Deepak, the cryoprotection may destroy the diffraction. I would also try diffraction at room temperature, using special sleeves to prevent dehydration. With 20% PEG400, you could also try to freeze the crystals without using additional cryoprotectant. If you are lucky, it may work. Best, H

[ccp4bb] Open PhD-position on structural biology of hydrogenases, Bochum, Germany

2021-05-18 Thread Eckhard Hofmann
Hi all, due to a cancellation we still have one open position in my group within the DFG-funded graduate school MiCon. Look at the website for further information (and don't worry about the deadline issue) https://www.ruhr-uni-bochum.de/micon/positions/index.html.en Please get in touch if yo

Re: [ccp4bb] sugestions on weak diffracting protein crystals

2021-05-18 Thread Oganesyan, Vaheh
Herman's suggestion is very good. But I'd go one step further and try to grow crystals in 30-40% PEG400. Then you definitely do not need any additional cryoprotectant. There is a chance that your crystals are of poor quality to start with. In that case no cryoprotection will help. You can test

Re: [ccp4bb] sugestions on weak diffracting protein crystals

2021-05-18 Thread Edward Snell
Dear Deepak, As some will have already said a good first check is to X-ray the crystals at the temperature they were grown at. This is not too hard and there are numerous approaches available. Some synchrotron sources, e.g. SSRL, have even enabled this as a remote capability. This can tell you

Re: [ccp4bb] sugestions on weak diffracting protein crystals

2021-05-18 Thread Mark J. van Raaij
If the foldamer(s) have exposed flexible parts they may impede ordered crystallisation. Perhaps some minor tweaks to the foldamer or foldamers you are co-crystallising with might lead to a better crystal contacts? For example removing one or a few residues from the end(s) or shortening a loop. M

[ccp4bb] Post Doctoral Position at AbbVie (Chicago, IL, USA): CFTR Structural and Function Studies

2021-05-18 Thread Anup Upadhyay
Dear Colleagues, I am writing to let you know that AbbVie’s Cystic Fibrosis Biology Group is currently looking for a Post-doctoral researcher to study structural and functional properties of Cystic Fibrosis Transmembrane Receptor (CFTR) protein using Cryo-EM and cellular functional assays. The goa

[ccp4bb] Scientific Web Application Developer Opportunity at RCSB/PDB (Rutgers)

2021-05-18 Thread john.westbr...@rcsb.org
Scientific Web Application Developer (RCSB/PDB Rutgers) Summary We are looking for a full-stack developer with a minimum of five years experience using modern database and web technologies. The candidate should enjoy engaging with other developers and scientists in a collaborative team environm

Re: [ccp4bb] sugestions on weak diffracting protein crystals

2021-05-18 Thread Jacqueline Vitali
Hi Deepak, If this is a metalloprotein, include higher concentration of the metal in the crystallization drop. It may act as a glue in the interfaces and give you a good crystal. Jackie Vitali Cleveland State University On Tue, May 18, 2021 at 6:20 AM Deepak Deepak wrote: > Dear all, > > I ha

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2021-05-18 Thread Jiyuan Ke
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2021-05-18 Thread Paul Adams
Dear Colleagues, I would like to draw your attention to a job opening here in Berkeley California, for a Cryo-EM Facility Manager: https://lbl.referrals.selectminds.com/jobs/cryo-em-facility-manager-3801 This position requires expertise in biological cryo electron microscopy (cryo-EM)

[ccp4bb] Job Posting - Research Associate position at NYSBC

2021-05-18 Thread Michael Rudolph
To any interested job seekers: Please see below the description for a Research Associate position open in the Protein Purification/X-ray Crystallography department at the New York Structural Biology Center. This is a permanent, full-time position suitable for a Master's degree holder. Inquirie