February 2013 - Chimera-users - RBVI Mailing Lists

suggestion: savepos
by Dougherty, Matthew T 06 Feb '13

06 Feb '13

It would be helpful to have the option in preferences to prevent the overwrite of keyframes. Something that would check to see if it exists, and then give an error if it does. Matthew Dougherty National Center for Macromolecular Imaging Baylor College of Medicine

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Amira map file reader
by Tom Goddard 06 Feb '13

06 Feb '13

I made Chimera able to read Amira map files, file suffix ".am", also known as AmiraMesh files, with format described here http://www.mpi-inf.mpg.de/~weinkauf/notes/amiramesh.html Chimera only reads scalar (not vector) files. This is in the current Chimera daily build. http://www.cgl.ucsf.edu/chimera/download.html#daily Tom

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Mirror
by Sebastian Mock 06 Feb '13

06 Feb '13

Hi, is there any possibility to mirror / copy a molecule. E.g. you have two docked molecules. If I want the docking partner to be mirrored to the other side of the receptor molecule in the same exact location, but mirrored. Thanks in advance Sebastian

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(no subject)
by rashmi gupta 06 Feb '13

06 Feb '13

Sir I want to know that if i had modeled a protein structure and want to categorize it into different chain or domain then how would i do this through chimera? Plz give the solution of question -- Rashmi Research scholar IMS, BHU

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Re: [Chimera-users] Chimera on a virtualbox
by Greg Couch 05 Feb '13

05 Feb '13

(Forgot to send reply to whole list) -------- Original Message -------- Subject: Re: [Chimera-users] Chimera on a virtualbox Date: Tue, 05 Feb 2013 13:51:47 -0800 From: Greg Couch <gregc(a)cgl.ucsf.edu> To: chris.wood(a)stfc.ac.uk Hi Chris, So what are you trying to do with Chimera inside a virtual machine? Presumably, you're not trying to use it graphically because virtualized graphics performance is usually abysmal. Chimera benefits immensely from direct access to the graphics hardware. So that leaves using Chimera as a server, and for that the headless version of Chimera is usually better -- the headless version uses a software implementation of OpenGL and thus avoids any driver issues. That said, this bug is still likely to be related to OpenGL support in VirtualBox. Make sure the computer that VirtualBox is running on has an up-to-date OpenGL graphics driver. It doesn't matter what VirtualBox does if the underlying system has a bad graphics driver. To confirm that the bug is in the graphics driver, get a backtrace of where the error occurs by using gdb as follows in a Terminal window (and assuming there is a symbolic link to the chimera binary on your path): % export CHIMERA=`chimera --root` % export LD_LIBRARY_PATH=$CHIMERA/lib % gdb $CHIMERA/bin/python2.7 (gdb) break_exit (gdb) run $CHIMERA/share/__main__.py --debug (gdb) bt The '%' and '(gdb)' parts are the shell and gdb prompts, respectively. The output from the bt command will probably be in Chimera's molecular drawing code (as opposed to drawing the UI). If you need help interpreting the chimera backtrace, you can send it to me. HTH, Greg On 02/05/2013 12:48 PM, chris.wood(a)stfc.ac.uk wrote: > > Hello all, > > I'm trying to run Chimera on VirtualBox. The installation completes > fine, but when I try and run the program (|cd| to the bin directory > and run |./chimera|) I see > > X Error of failed request: BadDrawable (invalid Pixmap or Window > parameter) > > Major opcode of failed request: 72 (X_PutImage) > > Resource id in failed request: 0x480006a > > Serial number of failed request: 1382 > > Current serial number in output stream: 1388 > > I've tried enabling / disabling hardware virtualization & 3D > acceleration, but to no avail. Although people do seem to have > problems with chimera on a virtualbox, it normally seems to be a > problem with OpenGL, which this doesn't seem to be. > > Has anyone seen this error before? Is there anything else I'm missing? > I can't even work out if it's a hardware, VirtualBox, or OS problem... > > ** > > *System:* > > VirtualBox 4.2.4 > Guest additions 4.2.4 > > Guest OS: Ubuntu 12.04 > Host OS: Windows 7 professional > > Thanks in advance! > > Chris > > ------------------- > > Dr Chris Wood > > STFC Rutherford Appleton Laboratory > > Didcot > > OX11 0QX > > chris.wood(a)stfc.ac.uk > www.ccpem.ac.uk > > > Tel: +44(0)1235 567864 > > Tel: +44(0)7909 586624 > Fax: +44(0)1235 567801 > > > -- > Scanned by iCritical. >

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color spill
by Yadong Yu 05 Feb '13

05 Feb '13

Hi there, I have a color spill problem when drawing a few figures of a hexamer. The coordinates of 6 protomers were saved into a PDB file. I wanted to color chain A red and the rest gray, so I selected chain A and colored it with red. The red color strangely spilled to an N-terminal segment of the next chain. I think there is some problem with the format of my PDB file, but don't know exactly what is wrong. Here's the end of A and begin of B where spill happend: ATOM 2657 C ASP A 418 74.297 91.204 65.520 1.00 0.00 P1 C ATOM 2658 OT1 ASP A 418 73.965 91.654 66.693 0.00 0.00 P1 O ATOM 2659 OT2 ASP A 418 73.731 91.612 64.449 0.00 0.00 P1 O ATOM 2660 N ASP A 418 74.565 88.894 65.731 1.00 0.00 P1 N ATOM 2661 CA ASP A 418 75.338 90.111 65.514 1.00 0.00 P1 C ATOM 2662 CB ASP A 418 76.099 90.113 64.183 1.00 0.00 P1 C ATOM 2663 CG ASP A 418 77.091 91.332 64.042 1.00 0.00 P1 C ATOM 2664 OD1 ASP A 418 76.837 92.210 63.175 1.00 0.00 P1 O ATOM 2665 OD2 ASP A 418 78.018 91.382 64.875 1.00 0.00 P1 O ATOM 2666 N LEU B 87 68.825 113.707 134.628 1.00 0.00 P2 N ATOM 2667 CA LEU B 87 68.215 113.786 133.272 1.00 0.00 P2 C ATOM 2668 CB LEU B 87 67.055 114.822 133.239 1.00 0.00 P2 C ATOM 2669 CG LEU B 87 66.068 114.738 134.402 1.00 0.00 P2 C ATOM 2670 CD1 LEU B 87 65.132 115.985 134.379 1.00 0.00 P2 C ATOM 2671 CD2 LEU B 87 65.430 113.355 134.203 1.00 0.00 P2 C ATOM 2672 C LEU B 87 69.159 114.128 132.171 1.00 0.00 P2 C ATOM 2673 O LEU B 87 69.384 113.413 131.199 1.00 0.00 P2 O Any suggestion? Thank you! Yadong

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Modeller
by Hernando J Sosa 05 Feb '13

05 Feb '13

Hi, I am trying t use modeller within chimera but it always end with an error: .... Kind, OS, HostName, Kernel, Processor: 4, Linux watson.cgl.ucsf.edu 2.6.32-279.14.1.el6.x86_64 x86_64 Date and time of compilation : 2012/08/29 11:36:00 MODELLER executable type : x86_64-intel8 Job starting time (YY/MM/DD HH:MM:SS): 2013/02/05 13:11:37 check_lice_E> Invalid license key: Go to http://salilab.org/modeller/ to get a license key, and then set the 'license' variable to it in the file /usr/lib/modeller9.11/modlib//modeller/config.py I have installed modeller in my computer and have a license to it. I also verified that the license number was set in the config.py file. So I am not sure what the problem could be ?? System details: Chimera v. 1.7 Modeller v. 9.11 OS: Windows 7 64bits Thanks, Hernando

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Chimera on a virtualbox
by chris.wood＠stfc.ac.uk 05 Feb '13

05 Feb '13

Hello all, I'm trying to run Chimera on VirtualBox. The installation completes fine, but when I try and run the program (cd to the bin directory and run ./chimera) I see X Error of failed request: BadDrawable (invalid Pixmap or Window parameter) Major opcode of failed request: 72 (X_PutImage) Resource id in failed request: 0x480006a Serial number of failed request: 1382 Current serial number in output stream: 1388 I've tried enabling / disabling hardware virtualization & 3D acceleration, but to no avail. Although people do seem to have problems with chimera on a virtualbox, it normally seems to be a problem with OpenGL, which this doesn't seem to be. Has anyone seen this error before? Is there anything else I'm missing? I can't even work out if it's a hardware, VirtualBox, or OS problem... System: VirtualBox 4.2.4 Guest additions 4.2.4 Guest OS: Ubuntu 12.04 Host OS: Windows 7 professional Thanks in advance! Chris ------------------- Dr Chris Wood STFC Rutherford Appleton Laboratory Didcot OX11 0QX chris.wood(a)stfc.ac.uk www.ccpem.ac.uk Tel: +44(0)1235 567864 Tel: +44(0)7909 586624 Fax: +44(0)1235 567801 -- Scanned by iCritical.

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MatchMaker
by Mock, Sebastian 05 Feb '13

05 Feb '13

Hi, I am facing a problem with Matching! Is there any possibility to match two structures, without losing the coordinates of e.g. a dimer unit. In this case, I want to match a homo-dimer to another similar structure. When I match all of the above mentioned dimers (chains), Chimera will match it all at the same place, so I will have two identical positions. In this case I am losing the steric information about the assembly of the homo-dimer. Is there any method, to treat the dimer as one molecule, which cannot be splitted and can be matched on another structure without losing the biological assembly? It is hard to explain, I hope you get me. Thanks in advance Sebastian

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Modification of COX Demo
by Noel Pace 05 Feb '13

05 Feb '13

To whom it may concern, I am a university student in his final year following a course in Pharmacy at the University of Malta. Currently, under the supervision of my tutor, I am working on a dissertation entitled " The Development of Computational Chemistry Practicals". During my research I came across your software UCSF Chimera and found out the DEMO section. I would like to make use of the editing function to edit the COX demo present with the software to represent Beta-Receptors instead. I will write down that the demo has been based on the COX demo present. Is the above request possible? I really find your software to be suited for my needs and would be honored to have your support in the fulfillment of my dissertation. I thank you in advance Noel Pace M. Pharm Student (Malta)

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Chimera-users February 2013