[ccp4bb] Research Technician Position in University of Vienna, Austria

2017-02-23 Thread Kristina Djinovic Carugo
*Research technician position * is available in the research *group of Kristina Djinovic-Carugo* in the Department for Structural and Computational Biology, Max. F. Perutz Laboratories of the University of Vienna, Austria. The main area of the group research is structural biology of F-actin bas

Re: [ccp4bb] How to convince oneself (and others) of ligand presence

2017-02-23 Thread Frank von Delft
PanDDA tries to arrive at an objective score metric for presence: http://biorxiv.org/content/early/2016/09/05/073411 But in the end, you still have to apply all the scientific rigour that Bernard mentions. On 23/02/2017 13:56, Mohamed Noor wrote: Dear all I think I have a ligand (substrate

Re: [ccp4bb] intermolecular dissulphides

2017-02-23 Thread Johannes Cramer
Dear Eleanor, sorry for the late reply. I found a similar case (id: 2OEF, Cys 92). I mutated the Cys to Ser, but it did not change anything (xtal conditions and quality remained the same). In solution the protein is a monomer. However, adding 1 mM DTT resulted in a significant increase in crystal

Re: [ccp4bb] How to convince oneself (and others) of ligand presence

2017-02-23 Thread Bernhard Rupp
At the risk of being redundant, I can only restate what I and many others have posted before: No simple answer or single universal statistic for your justified question or concern exists. The crucial question to ask first is what hypothesis or claims is your (ligand) model at that specific locatio

Re: [ccp4bb] How to convince oneself (and others) of ligand presence

2017-02-23 Thread Eleanor Dodson
Well - I certainly would do more refinement - if something is bound there will be other changes in solvent etc. then search the difference map for peaks/ find ligand etc, and see what it shows.. If your original model and this one are isomorphous you can also check the Fobs-lig -Fobs-nolig Phi-no

[ccp4bb] Postdoc and PhD student fellowships available

2017-02-23 Thread Elżbieta Nowak
Dear All, The group of Dr. Marcin Nowotny at the International Institute of Molecular and Cell Biology (IIMCB) in Warsaw, Poland is seeking candidates for postdoctoral fellows and PhD students. The fellows will work on protein complexes involved in retrotransposition and reverse transcription u

[ccp4bb] How to convince oneself (and others) of ligand presence

2017-02-23 Thread Mohamed Noor
Dear all I think I have a ligand (substrate) placed in the active site of my model correctly. The CC is 0.785, B factor of 60 A^2 which is roughly similar to the neighboring residues and there was no ligand in my search model*. The data extends to 2.2 A, although I think I can get something hig

[ccp4bb] postdoc fellowships available: in vitro reconstitution and cryo-EM

2017-02-23 Thread Lars-Anders Carlson
Dear all, Two postdoc fellowships are available in my lab at Umeå University, Sweden. The projects aim to decipher the molecular basis of human RNA virus replication using in vitro membrane reconstitution and cryo-EM (tomography of cells and single particle analysis). We are looking for highl

[ccp4bb] Reminder: Call for MX beamtime proposals at HZB, BESSY II, deadline March 01, 2017

2017-02-23 Thread Manfred S. Weiss
Please mark your calendar: The next MX-proposal application deadline: March 01, 2017 is approaching http://www.helmholtz-berlin.de/user/beamtime/proposals/index_en.html Hereby we would like to invite the submission of new proposals for MX-beamtime at the HZB-MX beamlines for the next beam time p