- Chimera-users - RBVI Mailing Lists

question
by Craig Scoville 31 Jan '19

31 Jan '19

Dear Staff -- I am interested in using Chimera but have a question regarding its use. I am interested in looking at the shape of small polypeptides --usually ranging from 5-20 amino acids -- does this program allow me to input amino acid sequences and then look at confirmational shapes? make substitutions and then compare confirmational shapes? Does the proprietary nature of my work prohibit me from using Chimera? Sincerely, Dr Scoville

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rmsd graph
by SEFA ÇELİK 31 Jan '19

31 Jan '19

Dear Dr. I am using Chimera software(windows platform). I tried to get rmsd graph(using the plotting in the MD Movie trajectory viewer). And I got the result. But, graph's x-axis "frame" and y-axis "rmsd" value. I want the x axis to be the "time". Briefly, I want to see how the value of rmsd changes with time. *I added files to the e-mail. Can you explain what "1001 frames" mean? And how do I convert "1001 frames" to time. I want to see the RMSD change by time.* Can you help with this? Could you explain in detail? Best regard Assoc Prof. Dr. Sefa Celik

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Morph conformation - side chains
by arrafzaher＠campus.technion.ac.il 28 Jan '19

28 Jan '19

Hi, I noticed Morph conformation only compares backbone Is it possible to compare side chains conformation change Lets say enzyme vs. phosphorylated same enzyme on a tyrosine residue (TPO) Thanks Zaher

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babel-type not found
by Ryan Cairns 25 Jan '19

25 Jan '19

Hi, When using AutoDock vina, I keep getting the message 'AttributeError: member babel_type not found'. I have uninstalled and reinstalled to try and fix it with no luck. Any suggestions on how to fix this? Thanks, Ryan Ryan Cairns PhD student School of Chemistry University of Nottingham pcxrc5(a)nottingham.ac.uk O'Reilly Research Group http://www.oreillyresearchgroup.com/ This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please contact the sender and delete the email and attachment. Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. Email communications with the University of Nottingham may be monitored where permitted by law.

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Select multiple chains
by Racaniello, Vincent R. 25 Jan '19

25 Jan '19

In pdb 4CTF there are multiple identical chains, e.g. A0, A1, A2, A3, A4 etc. I can select one with select :.A0 How do I select multiple chains, e.g. A0-A4? ______________________________ Vincent Racaniello, Ph.D. | Higgins Professor Department of Microbiology & Immunology Columbia University, New York virology.ws | microbe.tv "Tanto sa ciascuno quanto opera"

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Chimera Issue: Surface Calculation Failed - MSCalc returned code 5
by Megan Yung 25 Jan '19

25 Jan '19

Hello, I'm having some trouble generating surface models of large antibodies for an urgent project. I keep getting the mscalc return code 5 error message. I read through the forums and it seems that using the split command is the way to go, but I would not like to split this antibody. I'm trying to get a full rendition of the surface model of the antibody so that it is possible to 3D print the antibody. Can you please let me know if that would be possible? The pdb files of the 4 antibodies are attached. Thank you very much, Meg

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Re: [Chimera-users] Update VDW Dots During Torsion Rotation
by Eric Pettersen 24 Jan '19

24 Jan '19

Glad it did what you needed! —Eric > On Jan 24, 2019, at 11:29 AM, Brian E Coggins <bec2(a)duke.edu> wrote: > > Eric, > > Hack or not, this does the job perfectly! Many thanks. > > Brian > > >> On Jan 23, 2019, at 6:36 PM, Eric Pettersen <pett(a)cgl.ucsf.edu <mailto:pett@cgl.ucsf.edu>> wrote: >> >> Hi Brian, >> It seems the vdw command caches the computed surface points and that therefore various tricks with ~vdw/vdw don’t update the surface. However changing the dot density does clear the cache and cause a recomputation, so you can use this awful hack to get the vdw surface to update as you adjust torsions: >> >> perframe “vdwdens 5.1; vdwdens 5” >> >> Every frame, the density will be changed to 5.1 and then back to the (default) 5. You might want to use different numbers. I prefer not to be “credited” with this idea. :-) >> >> >> not Eric Pettersen >> not from the UCSF Computer Graphics Lab >> >> >>> On Jan 23, 2019, at 3:14 PM, Elaine Meng <meng(a)cgl.ucsf.edu <mailto:meng@cgl.ucsf.edu>> wrote: >>> >>> Hi Brian, >>> This is not a direct answer to your question, but alternatives to showing VDW dots are: >>> >>> (A) show sphere representation (VDW spheres) instead of stick representation of atoms >>> >>> (B) show molecular surface, which will update as bonds are rotated. You could make it transparent and/or show it as mesh, e.g. commands: >>> >>> surftrans 75 >>> surftrans 0 >>> surfrep mesh >>> >>> There is also a “dot” style (as opposed to mesh and solid) but then you’d want to crank up the vertex density to put the dots closer together… e.g. select the surface with Ctrl-click and then use the Selection Inspector (open by clicking green magnifying glass icon), inspect: MSMS surface, increase “vertex density” and maybe dot size. >>> >>> Depending on the structure, however, molecular surface calculation may be slow and/or fail as you change the structure by rotating bonds. >>> >>> I hope this helps, >>> Elaine >>> ----- >>> Elaine C. Meng, Ph.D. >>> UCSF Chimera(X) team >>> Department of Pharmaceutical Chemistry >>> University of California, San Francisco >>> >>>> On Jan 23, 2019, at 1:29 PM, Brian E Coggins <bec2(a)duke.edu <mailto:bec2@duke.edu>> wrote: >>>> >>>> Hello, >>>> >>>> If I am displaying atomic dots using the “vdw” command, is there any way to get the dots to update as structural changes are made? For example, if I am adjusting torsions in the Adjust Torsion box, is there a way to get the dots to follow along as the structure changes? >>>> >>>> Thanks, >>>> Brian >>>> >>>> --- >>>> Brian E. Coggins, Ph.D. >>>> Assistant Research Professor of Biochemistry >>>> Duke University, Durham, NC >>> >>> >>> _______________________________________________ >>> Chimera-users mailing list: Chimera-users(a)cgl.ucsf.edu <mailto:Chimera-users@cgl.ucsf.edu> >>> Manage subscription: http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users <https://urldefense.proofpoint.com/v2/url?u=http-3A__plato.cgl.ucsf.edu_mail…> >>> >> > > --- > Brian E. Coggins, Ph.D. > Assistant Research Professor of Biochemistry > Duke University, Durham, NC > > > >

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Update VDW Dots During Torsion Rotation
by Brian E Coggins 23 Jan '19

23 Jan '19

Hello, If I am displaying atomic dots using the “vdw” command, is there any way to get the dots to update as structural changes are made? For example, if I am adjusting torsions in the Adjust Torsion box, is there a way to get the dots to follow along as the structure changes? Thanks, Brian --- Brian E. Coggins, Ph.D. Assistant Research Professor of Biochemistry Duke University, Durham, NC

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Visualize dot_surface dat file in chimera
by Ashok Nayak 23 Jan '19

23 Jan '19

Hi, I have a HOLE dot surface fie exported from coot in the .DAT format. Unfortunately I cant display it in chimera. Could you suggest me the compatible format in chimera to visualize the dot surface files Its in X Y Z r g b Hexcol format 234.17638 238.94343 268.17244 0.44800 0.47168 0.80000 #7278cc 234.33047 238.06957 268.17244 0.44800 0.47168 0.80000 #7278cc 234.63396 237.23575 268.17244 0.44800 0.47168 0.80000 #7278cc 235.29419 242.56321 267.72878 0.44800 0.47168 0.80000 #7278cc Any suggestion will be appreciated

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Serine 371 in a protein (ATR)
by leifepeterson＠sbcglobal.net 22 Jan '19

22 Jan '19

Hi Elaine, A particular protein binds with e.g. Serine-371 of another protein (ATR). In order to find that pocket in a PDBQT image of ATR, can I simply look for AA=371? Thanks, Leif Peterson

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