June 2008 - Chimera-users - RBVI Mailing Lists

color scale bar
by Yao Cong 17 Jul '09

17 Jul '09

Hello Chimera developer, I am rendering a PDB file colored according to B-factor value by "render by attribute" tool. How can I generate a color scale bar besides the structure labeling the color scale used? Many thanks, Yao Cong

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using EMAN/AIRS/SSEHunter
by Peter Hildebrand 10 Dec '08

10 Dec '08

Hallo there, we have installed the AIRS (EMAN 1.8) Package for Chimera (build 2470), but have difficulties to get it run. steps to reproduce: launch Chimera load .mrc file calling tools/AIRS/SSEHunter there is no file to select in the 'MRC file' selection box. If we provide parameters for Angstrom, Resolution and threshold and press 'Apply' we get this: ================================================================= UnboundLocalError Exception in Tk callback Function: <function command at 0x89f67d4> (type: <type 'function'>) Args: () Traceback (innermost last): File "CHIMERA/lib/python2.4/site-packages/Pmw/Pmw_1_2/lib/PmwBase.py", line 1747, in __call__ None File "CHIMERA/share/chimera/baseDialog.py", line 238, in command None File "/usr/local/EMAN/chimeraext/Airs/ssehunter.py", line 89, in Apply targetPath=airsIO.getPath(target) File "/usr/local/EMAN/chimeraext/Airs/airsIO.py", line 62, in getPath return path UnboundLocalError: local variable 'path' referenced before assignment ================================================================= Are we using this module in the wrong way (wrong parameters e.g.) or is it a bug (where?). Thanks in advance, jan and peter

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Mutate by D- res...
by Yasser Almeida Hernández 30 Jun '08

30 Jun '08

Can Chimera mutate by D-residues? If this is possible, how i can do it? Thanks... -- Yasser Almeida Hernández Estudiante, 4to Año Bioquímica Facultad de Biología Universidad de la Habana

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Dummy atoms
by Jean Didier Pie Marechal 30 Jun '08

30 Jun '08

Dear all, I think the question was already posted but I can't find it. I would like to make an atom I placed as an helium to a Dummy: What is the corresponding atom type in Chimera? All the best JD Dr. Jean-Didier Maréchal Professor Lector Unitat de Química Física Departament de Química Universitat Autònoma de Barcelona Edifici C.n. 08193 Cerdanyola (Barcelona) Tel: +34.935814936 e-mail: JeanDidier.Marechal(a)uab.es ----- Missatge original ----- De: chimera-users-request(a)cgl.ucsf.edu Data: Dimarts, Juny 24, 2008 9:00 pm Assumpte: Chimera-users Digest, Vol 62, Issue 21 > Send Chimera-users mailing list submissions to > chimera-users(a)cgl.ucsf.edu > > To subscribe or unsubscribe via the World Wide Web, visit > http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users > or, via email, send a message with subject or body 'help' to > chimera-users-request(a)cgl.ucsf.edu > > You can reach the person managing the list at > chimera-users-owner(a)cgl.ucsf.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Chimera-users digest..." > > > Today's Topics: > > 1. Re: how could u know the order of atoms? (Eric Pettersen) > > > -------------------------------------------------------------------- > -- > > Message: 1 > Date: Mon, 23 Jun 2008 14:22:31 -0700 > From: Eric Pettersen <pett(a)cgl.ucsf.edu> > Subject: Re: [Chimera-users] how could u know the order of atoms? > To: Kamal Al Nasr <k_alnasr(a)yahoo.com> > Cc: chimera-users(a)cgl.ucsf.edu > Message-ID: <8901DE4E-D117-4B18-968B-D3095AD735D4(a)cgl.ucsf.edu> > Content-Type: text/plain; charset="us-ascii" > > On Jun 19, 2008, at 10:08 AM, Kamal Al Nasr wrote: > > > Dear Sir/Madam, > > > > I am using Chimera viewer..and it is a great viewer ever... > > Thanks! I'm glad you like it. > > > I kindly have a question... how could you know (from PDB file) > the > > coorect bonding between atoms? I mean that how could you know > that > > this atom is connected with CA not N nor C.....do u have all > these > > bonds stored already in a database? or you use atom positions to > > determine that? > > For standard amino and nucleic acids, Chimera has templates > containing the correct connectivity. For non-standard residues it > bases the connectivity on inter-atomic distances, with a few added > heuristics (e.g. hydrogens can only have one bond). > > The templates are accessible in the Python layer with the > chimera.restmplFindResidue() function. You can look in the > Rotamers > extension for examples of its use. The distance-based connectivity > > function is also available for an entire molecule as > chimera.connectMolecule(). It takes the molecule as its only > argument and adds bonds to it. > > --Eric > > Eric Pettersen > UCSF Computer Graphics Lab > http://www.cgl.ucsf.edu > >

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"Floating exception" error message
by Dong-Yan Tan 27 Jun '08

27 Jun '08

Dear all, We have just installed chimera-1.2470-linux.exe in our Linux computer (SUSE LINUX 9.0 ). We keep getting error message "Floating exeptions" when we are just trying to open a PDB file and the program quits automatically. Has anyone encountered such a problem or have clues about where to look for solutions? Thanks a lot. Dong-Yan -- Dong-Yan Tan Laboratory of Dr. Hernando Sosa Dept. of Physiology and Biophysics Albert Einstein College of Medicine Bronx, NY 10461 Tel: 718-430-3451 Email: dtan(a)aecom.yu.edu -- Dong-Yan Tan Laboratory of Dr. Hernando Sosa Dept. of Physiology and Biophysics Albert Einstein College of Medicine Bronx, NY 10461 Tel: 718-430-3451 Email: dtan(a)aecom.yu.edu

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"Floating exception" error message
by Dong-Yan Tan 27 Jun '08

27 Jun '08

Dear all, We have just installed chimera-1.2470-linux.exe in our Linux computer (SUSE LINUX 9.0 ). We keep getting error message "Floating exeptions" when we are just trying to open a PDB file and the program quits automatically. Has anyone encountered such a problem or have clues about where to look for solutions? Thanks a lot. Dong-Yan -- Dong-Yan Tan Laboratory of Dr. Hernando Sosa Dept. of Physiology and Biophysics Albert Einstein College of Medicine Bronx, NY 10461 Tel: 718-430-3451 Email: dtan(a)aecom.yu.edu -- Dong-Yan Tan Laboratory of Dr. Hernando Sosa Dept. of Physiology and Biophysics Albert Einstein College of Medicine Bronx, NY 10461 Tel: 718-430-3451 Email: dtan(a)aecom.yu.edu

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(no subject)
by Dong-Yan Tan 27 Jun '08

27 Jun '08

Dear all, We have just installed chimera-1.2470-linux.exe in our Linux computer (SUSE LINUX 9.0 ). We keep getting error message "Floating exeptions" when we are just trying to open a PDB file and the program quits automatically. Has anyone encountered such a problem or have clues about where to look for solutions? Thanks a lot. Dong-Yan -- Dong-Yan Tan Laboratory of Dr. Hernando Sosa Dept. of Physiology and Biophysics Albert Einstein College of Medicine Bronx, NY 10461 Tel: 718-430-3451 Email: dtan(a)aecom.yu.edu

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hydrophobic pocket
by bala 27 Jun '08

27 Jun '08

Dear Chimerian's, How do i detect hydrophobic pockets in a protein using chimera ?. Thanks in advance, Bala

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Re: [Chimera-users] Question about avi files in chimera
by Tom Goddard 27 Jun '08

27 Jun '08

Hi Jaap, The AVI files produced by Chimera movie recorder use the MSMPEG-4v2 (Microsoft MPEG4 version 2) video codec and the encoding is done by the open source ffmpeg program. The file size depends on the movie recorder "bit rate" setting (default 2000 Kbits/sec = 250 Kbytes/sec = 15 Mbytes/min). Changing this setting allows you to trade off file size versus image quality. http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/recorder/recorder.… Tom Jaap Brink wrote: > > Hi Tom, > > > > I was wondering given the size difference in avi files that chimera > generates versus other program (Video Edit Magic for instance), which > video codec is being used? I searched the list of embedded software > packages in chimera and found the library of libavcodecs. > > > > Thanks in advance, > > > > Jaap >

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upcoming production release
by Greg Couch 26 Jun '08

26 Jun '08

Hello, We are currently getting ready to put out another chimera production release. At this point, we consider the daily builds to be release candidates, so please download one and try it out. Not all of the daily builds will be production releases, in particular, the Mac OS X Aqua version is not quite ready, and will be a snapshot release. And the Linux off-screen OpenGL version is experimental and will probably stay as a daily build. Greg Couch UCSF Computer Graphics Lab Daily builds: <http://www.cgl.ucsf.edu/chimera/alpha-downloads.html> New features: <http://www.cgl.ucsf.edu/chimera/docs/relnotes/snapshot.html>

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Chimera-users June 2008