Re: [ccp4bb] how to fix helices-sheets getting converted to coil,

2021-08-17 Thread Joel Tyndall
HI, I simply opened this in Pymol, saw the non designated structed, typed dss (https://www.pymolwiki.org/index.php/Dss) and then saw the secondary structure... It "may" be that it is not designated in the pdb file (however I haven't looked). J From: CCP4 bulletin board On Behalf Of Firdous

Re: [ccp4bb] biomolecular NMR for IDPs

2021-08-17 Thread Georg Mlynek
Dear Harry, you can run alphafold via https://colab.research.google.com/github/deepmind/alphafold/blob/main/notebooks/AlphaFold.ipynb#scrollTo=woIxeCPygt7K *Cited* *"Differences to AlphaFold v2.0* In comparison to AlphaFold v2.0, this Colab notebook uses*no templates (homologous structures)*a

Re: [ccp4bb] biomolecular NMR for IDPs

2021-08-17 Thread CCP4BB
lDDT = Local Difference Distance Test, for reference... Harry -- Dr Harry Powell > On 17 Aug 2021, at 20:21, Randy John Read wrote: > > What the DeepMind people say about this is that when part of a predicted > structure has a low predicted lDDT (a CASP measure of model quality), this is > a

Re: [ccp4bb] biomolecular NMR for IDPs

2021-08-17 Thread Randy John Read
What the DeepMind people say about this is that when part of a predicted structure has a low predicted lDDT (a CASP measure of model quality), this is a good indicator that it may be intrinsically disordered. Best wishes, Randy Read > On 17 Aug 2021, at 17:13, Sorin Draga wrote: > > Dear al

[ccp4bb] Postdoc position in San Antonio, TX

2021-08-17 Thread Yogesh Gupta
Dear Colleagues: My laboratory at the University of Texas Health Science Center at San Antonio is seeking an enthusiastic Postdoctoral Fellow to work on an NIH-funded project on SARS-CoV-2 and RNA modification. We will use X-ray crystallography, cryo-EM, and cell-based methods to address basic me

Re: [ccp4bb] biomolecular NMR for IDPs

2021-08-17 Thread Krieger, James M
Dear Harry, Thanks very much for the info about RoseTTAFold. As for AlphaFold, there are ways to run it through Google Colab e.g. https://t.co/kxvjLVFwQx I’d also advise against using these for IDPs. Best wishes James On Aug 17, 2021, at 17:13, Harry Powell - CCP4BB <193323b1e616-dmarc-re

Re: [ccp4bb] biomolecular NMR for IDPs

2021-08-17 Thread Sorin Draga
Dear all, Regarding the AlphaFold2: while its results are impressive for properly folded proteins, I would caution against using it for IDPs: they do not have a stable 3D structure that can be predicted, instead they occupy an ensemble of structures, with a high degree of heterogeneity. While you

Re: [ccp4bb] biomolecular NMR for IDPs

2021-08-17 Thread Harry Powell - CCP4BB
Hi Forgive me if I’ve missed something, but I can’t find a way to run AlphaFold without installing it locally - in which case I need a reasonable GPU. On the other hand, RoseTTAFold does pretty much the same thing and is available via David Baker’s web server - upload your sequence and sit back

Re: [ccp4bb] biomolecular NMR for IDPs

2021-08-17 Thread George Sheldrick
As Joel has suggested before, alphafold on an IDP would be interesting and would seem like a zero-cost starting point - perhaps one you have tried already. Sent from ProtonMail mobile Original Message On 15 Aug 2021, 15:53, Scott Horowitz < scott.horow...@du.edu> wrot

Re: [ccp4bb] how to fix helices-sheets getting converted to coil,

2021-08-17 Thread Boaz Shaanan
Hi, As far as I recall (and I could well be wrong/not uptodate) Chimera reads the SS description on the input PDB and implements them. So you could perhaps edit the pdb to have the correct descriptions, as you wish. My 2p contribution. Boaz Boaz Shaanan, Ph.D. Dept. of Life Sciences Ben Gurion

Re: [ccp4bb] malonate and histidine interaction

2021-08-17 Thread Jon Cooper
Hello, only other thought was that malonate might be binding in two conformations, i.e. dual occupancy, and did you use a protease inhibitor cocktail, since the constituents can react? The density looks a bit like citrate, but too close to the His. I couldn't read the distances to the His in yo

Re: [ccp4bb] malonate and histidine interaction

2021-08-17 Thread Ana Ebrecht
Hi Jon, Thanks for the reply. I don't think this is acetylation, because I only see this density in the crystals that grew with malonate. In other conditions doesn't show anything like that. So I thought it'd be the malonate. But I'll check on that. Thanks for the suggestion. Kind regards Ana On

[ccp4bb] IUCr Journals at the IUCr Congress

2021-08-17 Thread Louise Jones
For anyone participating in the IUCr Congress Today at 1pm in Prague and online (Tuesday 17th) IUCr Journals Open Meeting Want to find out more about IUCr Journals and meet the Editor in Chief? Find out about the latest developments and ask questions about any of the journals. Tomorrow at 1