Re: [ccp4bb] extra Fo-Fc density in two Cysteines

2023-12-18 Thread Wim Burmeister
from the CCP4BB list, click the following link: [ https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 | https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 ] [image/png:Screenshot 2023-12-16 at 3.36.01 PM.png] -- Wim Burmeister Professor Institut de Biologie Struct

Re: [ccp4bb] 1990s-style stereo viewer

2023-07-24 Thread Wim Burmeister
scmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/ -- Wim Burmeister Professor Institut de Biologie Structurale (IBS) CIBB 71 avenue des Martyrs / CS 20192 38044 Grenoble Cedex 9, FRANCE

Re: [ccp4bb] quantifying electron density

2023-06-29 Thread Wim Burmeister
4BB=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/ -- Wim Burmeister Professor Institut de Biologie Structurale (IBS) CIBB 71 avenue des M

Re: [ccp4bb] 3d stereo on windows 10/11

2023-02-10 Thread Wim Burmeister
n permanently delete this email and any attachment, including any printed copies. Thank you. To unsubscribe from the CCP4BB list, click the following link: [ https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 | https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 ] -- Wim B

[ccp4bb] Deadline approaching : PhD thesis offer (F/M) "Structure of the vaccinia virus DNA replication machinery..."

2022-09-26 Thread Wim Burmeister
helicase structure from combined single-particle cryo-electron microscopy and AlphaFold2 prediction. Viruses. In press. -- Wim Burmeister Professeur Institut de Biologie Structurale (IBS) CIBB 71 avenue des Martyrs / CS 20192 38044 Grenoble Cedex 9 , FRANCE E-mail: [ mailto:wim.burmeis..

[ccp4bb] PhD thesis offer (F/M) "Structure of the vaccinia virus DNA replication machinery..."

2022-09-05 Thread Wim Burmeister
by Prof. Wim Burmeister within the « Viral Replication Machines group ». Cryo-EM and computing facilities are available on the research campus, which is shared with international institutes: the EMBL Grenoble outstation, the ESRF synchrotron and the ILL research

Re: [ccp4bb] Unable to reduce the values of R-work and R-free

2022-03-07 Thread Wim Burmeister
://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 -- Wim Burmeister

Re: [ccp4bb] Ligand occupancy refinement

2022-03-03 Thread Wim Burmeister
Genetic Engineering and Biotechnology, New Delhi, India To unsubscribe from the CCP4BB list, click the following link: [ https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 | https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 ] -- Wim Burmeister Professor

Re: [ccp4bb] Add hydrogens

2021-09-29 Thread Wim Burmeister
link: [ https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 | https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 ] -- Wim Burmeister Professor Institut de Biologie Structurale (IBS) CIBB 71 avenue des Martyrs / CS 20192 38044 Grenoble Cedex 9, FRANCE E-

Re: [ccp4bb] Phosphatase enzymatic assay

2021-09-15 Thread Wim Burmeister
ribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/po

[ccp4bb] chain on 2-fold axis?

2021-09-01 Thread Wim Burmeister
Hello, I just would guess that you have twinning and disorder of the 5th subunit around the 2-fold axis at the same time. The twinning in P3221 with operators HKL and KH-L (involving the full unit cell contents) is required to explain the observed twinning fraction whereas only the disorder

Re: [ccp4bb] malonate and histidine interaction

2021-08-19 Thread Wim Burmeister
Hello Ana, it looks very much like a covalent bond with the His. You may get some hints from the chemistry of the reaction, which is normally catalysed. Are there possible side products involving malonate, alternative substrates present in the buffer etc ?

Re: [ccp4bb] AlphaFold: more thinking and less pipetting (?)

2020-12-03 Thread Wim Burmeister
Hello, we had a 124 aa target in Casp14, without any detectable homology to a known structure. Within the experimental errors, the AlphaFold2 model is identical to the NMR model we got. That was very convincing. Best wishes Wim De: "Jon Cooper"

Re: [ccp4bb] R free rising

2020-11-02 Thread Wim Burmeister
...or your dataset may have a much lower resolution than the one your initial model was based upon. The discrepancy between Rfree and Rwork seem to indicate this. Best Wim De: "Eleanor Dodson" <176a9d5ebad7-dmarc-requ...@jiscmail.ac.uk> À: "CCP4BB" Envoyé: Lundi 2 Novembre 2020

Re: [ccp4bb] font issues in imosflm under xubuntu 18

2020-09-29 Thread Wim Burmeister
nditions are available at https://www.jiscmail.ac.uk/policyandsecurity/ To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB=1 -- Wim

[ccp4bb] Font issues in imosflm under xubuntu 18

2020-09-29 Thread Wim Burmeister
-- Wim Burmeister

[ccp4bb] font issues in imosflm under xubuntu 18

2020-09-29 Thread Wim Burmeister
a screenshot of the interface. Does anybody have any idea how to solve the problem ? Best wishes Wim -- Wim Burmeister

Re: [ccp4bb] Lattice-translocation defect (LTD)

2020-02-11 Thread Wim Burmeister
1=CCP4BB=1 -- Wim Burmeister

Re: [ccp4bb] [EXTERNAL] Re: [ccp4bb] 1 out of 2 proteins in asymmetric unit does not fit density

2019-12-16 Thread Wim Burmeister
Hello, I would guess that the badly fitting molecule may be upside down (related my an 2-fold axis). I would use the first, partially refined structure for another round of molecular replacement in P212121 with molrep, using the model as well as a partial solution as as asearch model. The

Re: [ccp4bb] [Off-Topic] 3D Vision stereo with Ubuntu 18.04

2019-11-08 Thread Wim Burmeister
Hello, The desktop changed in the passage from Ubuntu16 to Ubuntu18. I think Nvidia stereo now works only with a xfce desktop. The passage from debian 8 to debian 9 was not a problem as long as xfce is kept. Best regards Wim - Mail original - De: "Chris Richardson" À: "CCP4BB" Envoyé:

Re: [ccp4bb] Calculating RMSD of a loop

2019-09-17 Thread Wim Burmeister
Hello, I admit that I only found the solution to import the pdb's after alignment of the body of the protein into a spreadsheet (LibreOffice Calc) and then to calculate the rms of the atoms of the loop (or of the CA atoms of the loop). Best wishes Wim On

[ccp4bb] Problem in real space - please sign & invite other scientists to sign this letter

2019-08-20 Thread Wim Burmeister
Hello, I transmit this initiative for those who feel that there is also life outside reciprocal space and and not only scientist in specialist disciplines have a responsibility in real space. The graphs in the paper mentioned

Re: [ccp4bb] Better Beamline suggestion!

2019-08-20 Thread Wim Burmeister
uk/cgi-bin/webadmin?SUBED1=CCP4BB=1 -- Wim

Re: [ccp4bb] ORCID

2019-08-19 Thread Wim Burmeister
Hello, like a lot of items in the pdb entry, the entry is not mandatory. But using the ORCID is a good idea in order to be able to claim easily your work if you have a very common name and it may be difficult to find your authorship unambigously. Best Wim De: "Jie Liu" À: "CCP4BB"

Re: [ccp4bb] AW: [EXTERNAL] [ccp4bb] Refinement

2019-03-25 Thread Wim Burmeister
?SUBED1=CCP4BB=1 -- Wim Burmeister Professeur

Re: [ccp4bb] Partially occupied C-terminus

2019-01-17 Thread Wim Burmeister
-- Wim Burmeister Professeur Institut de Biologie Structurale (IBS) CIBB 71 avenue des Martyrs

[ccp4bb] OT: Nvidia 3D vision 2 glasses with Ubuntu workstation - Fwd: 3D graphics under linux for coot, pymol and chimera

2018-12-20 Thread Wim Burmeister
: 3D graphics under linux for coot, pymol and chimera Date: Wed, 17 May 2017 12:27:21 +0200 From: Wim Burmeister To: CCP4 Bulletin Board

Re: [ccp4bb] OFF TOPIC

2018-11-13 Thread Wim Burmeister
=1 -- Wim Burmeister Professeur Institut de Biologie Structurale (IBS) CIBB 71 avenue des Martyrs CS 20192 38044 Grenoble Cedex 9, FRANCE

Re: [ccp4bb] help needed with a rabbit-head-shaped blob

2018-11-04 Thread Wim Burmeister
Hello, it looks if the density is located around a 2-fold axis. It cannot be the superposition of a bis-tris methane molecule bound asymmetrically and its symmetry mate ? Best Wim De: "Deborah Harrus" À: "CCP4BB" Envoyé: Vendredi 2 Novembre 2018 22:14:32 Objet: [ccp4bb] help needed

Re: [ccp4bb] Issue with high Rfree (0.25) for a high-resolution dataset (1.05 Ang)

2018-10-09 Thread Wim Burmeister
Hello, at that resolution, the refinement of anisotropic atomic B-factors is absolutely required, as is the modelisation of alternate conformations for surface residues. Optimize also the weight of different restraints (for exemple on B-factors) in order to get the lowest Rfree. Best Wim

Re: [ccp4bb] Unidentified electron density blob

2018-07-06 Thread Wim Burmeister
: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB=1 -- Wim Burmeister Professeur Institut de Biologie Structurale (IBS) CIBB 71 avenue des Martyrs CS

Re: [ccp4bb] Script / matrix for coordinate transformation from a cubic I cell to its primitive P cell ?

2018-05-18 Thread Wim Burmeister
Hello, thank you very much for the different answers. In order to close the discussion, the solution is to expand first the I213 asymmetric unit to a full I213 unit cell contents (24 asu, 12 from the rotational symmetry and 12 from the body-centering) using

Re: [ccp4bb] 3D stereo and pymol

2018-05-18 Thread Wim Burmeister
Christine On Wed, Jan 3, 2018 at 1:42 AM, Wim Burmeister <wim.burmeis...@ibs.fr> wrote: I answer a bit late, but I repost a message on 3D graphics from Mai 2017 : Hello,

[ccp4bb] Script / matrix for coordinate transformation from a cubic I cell to its primitive P cell ?

2018-05-15 Thread Wim Burmeister
system to the other combined with the orthogonalisation convention for the P1 cell. Best Wim -- Wim Burmeister Professeur Institut de Biologie Structurale (IBS) CIBB 71 avenue des Martyrs CS 20192 38044 Grenoble Cedex 9, FRANCE E-mail

Re: [ccp4bb] 3D stereo and pymol

2018-01-03 Thread Wim Burmeister
e tag of about 1600 € free of taxes. coot, pymol and chimera work straight without problems in hardware stereo mode. The experience is absolutely great. Best Wim -- Wim Burmeister Professeur Institut de Bio

Re: [ccp4bb] ITC data clarification.

2017-12-08 Thread Wim Burmeister
Hello, only a test of the biological function of mutants will tell whether your interface is an artefact or not. It is very well possible that an alanine mutations increases binding; you have to inspect the interface carefully whether there were for example buried hydrogen donors or

Re: [ccp4bb] 3D graphics under linux for coot, pymol and chimera

2017-05-22 Thread Wim Burmeister
"Monitor0"     DefaultDepth    24     Option "AllowGLXWithComposite" "True"     Option "Stereo" "10"     Option         "nvidiaXineramaInfoOrder" "DFP-6"     Option "metamodes" "

[ccp4bb] 3D graphics under linux for coot, pymol and chimera

2017-05-17 Thread Wim Burmeister
imera work straight without problems in hardware stereo mode. The experience is absolutely great. Best Wim -- Wim Burmeister Professeur Institut de Biologie Struct

Re: [ccp4bb] Temperature factor discrepancy

2008-12-03 Thread Wim Burmeister
ideal bond angles () 2.0 1.9 Average B-factor [2] 39 46 Values for the highest resolution bin are given in brackets. Cheers Wim Wim Burmeister a crit: Dear all, I have

[ccp4bb] Temperature factor discrepancy

2008-12-02 Thread Wim Burmeister
Wim -- *** Wim Burmeister Professeur, Membre de l'Institut Universitaire de France Unit of Virus Host Cell Interactions (UVHCI) UMR5233 UJF-EMBL-CNRS 6 rue Jules Horowitz B.P. 181, F-38042 Grenoble Cedex 9 FRANCE E

Re: [ccp4bb] Lower completeness, decent R factors, but low B factor...

2008-08-20 Thread Wim Burmeister
-- *** Wim Burmeister Professeur, Membre de l'Institut Universitaire de France Unit of Virus Host Cell Interactions (UVHCI) UMR5233 UJF-EMBL-CNRS 6 rue Jules Horowitz B.P. 181, F-38042 Grenoble Cedex 9 FRANCE E-mail: [EMAIL PROTECTED] Tel:+33 (0) 476 20 72 82 Fax: +33 (0) 476

Re: [ccp4bb] refmac, twin - really low Rfactors

2008-08-14 Thread Wim Burmeister
. The datasets become better as there are less weak and strong reflections. This leads to a better fit so that your results do not surprise me. Yours Wim Burmeister -- *** Wim Burmeister Professeur, Membre de l'Institut

Re: [ccp4bb] self-rotation interpretation, 5 minutes

2007-08-20 Thread Wim Burmeister
to the direction of the z axis. There is well a crystallographic 4-fold (and automatically 2- fold) peak in this direction. Then there are non-crystallographic 2-fold axes in the x,y plane, spaced by 45 degrees, as all the peaks appear to have the same height. Greetings Wim Burmeister

Re: [ccp4bb] packing

2007-06-29 Thread Wim Burmeister
that the packing appears different on the first glimpse, but you should be able to translate one arrangement on top of another. Yours Wim -- *** Wim Burmeister Professeur, Membre de l'Institut

Re: [ccp4bb] His-His H-bond

2007-05-23 Thread Wim Burmeister
are not fully protonated, and at pH 5.6 this is still possible, the nitrogen atoms act as hydrogen bond donors or acceptors. Look for example in pdb 1FL1 KSHV protease, where there is a catalytic triad Ser114-His46-His134. Yours Wim Burmeister