May 2007 - Chimera-users - RBVI Mailing Lists

chain selection in a multi-conformatin pdb file.
by Hong Liang 09 May '07

09 May '07

Hi Chimera fans, 1. If a pdb file contains more then one struture, how can I select and keep just one and get rid of the rest. Such as 1X95. It is a big mess after Chimera load the the DNA pdb structure. How can I leave just one double helix? 2. Can Chimera do the extension of DNA. Such as 1X95 has the hexamer with the sequence of ATGCAT, can Chimera double it to a dodecamer with a sequence ATGCATATGCAT? It Chimera can not do that, do you know which software has such a function. I tried PyMol but did not get what I wanted. Thanks a lot. Hong

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Defining a zone around a point defined by x, y, z coordinates
by Jean-Didier Marechal 08 May '07

08 May '07

Dear all, We are having difficulties in defining a certain type of selection zones in chimera. Our problem is that we don't want to centre the zone on an atom selection but on one point of the space defined by its 3D coordinates. Typically we want to give chimera the x,y,z coordinates and select all the atoms included in a sphere of 25 angstroms around this point. How can we do so? Thanks a lot JD -- Dr. Jean-Didier Maréchal Professor Assistant Physical-Chemistry Unit Department of Chemistry University Autonomous of Barcelona 08193 Bellaterra, Spain Tel: (+34).93.581.49.36 Fax: (+34).93.581.29.20 e-mail: jeandidier.marechal(a)uab.es

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Find Hbonds in batch
by Stefan Bienert 08 May '07

08 May '07

Hello Chimera fans! Is there a way to use chimera for finding hydrogen bonds for tons of molecules? I'm thinking of something like a command line script, which loads a pdb file, fetches the hbonds and writes them to a file. I got around 1000 pdb files and therefore doing everything manually is not an option ;-) greetings, Stefan -- Stefan Bienert Zentrum fuer Bioinformatik Universitaet Hamburg Bundesstrasse 43 20146 Hamburg Germany Email: bienert(a)zbh.uni-hamburg.de Phone: +49 (40) 42838 7345 Fax: +49 (40) 42838 7332

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importing sdf files from PubChem
by Mark Andrake 07 May '07

07 May '07

Hey Folks, It is a relatively new feature to be able to read SDF compound structure files in Chimera. (I have release 2350 for Windows - I will be upgrading to the new snapshot that I just saw while looking around the site) Anyway - I tried with a compound sdf file that I got from PubChem (enclosed) - but seemed to have problems. At first it gave an error shown in the first lines below - and then seemed to say that it opened the files - but no atoms were displayed and no new model ID was generated and put into the Model Panel . Opening C:\Documents and Settings\andrake\My Documents\WORK f\PDBs\Cy3_CID_16048627.sdf Error reading C:\Documents and Settings\andrake\My Documents\WORK f\PDBs\Cy3_CID_16048627.sdf: Unexpected end of file (parser state: post header 1) in MOL/SDF file 'C:\Documents and Settings\andrake\My Documents\WORK f\PDBs\Cy3_CID_16048627.sdf' Done opening C:\Documents and Settings\andrake\My Documents\WORK f\PDBs\Cy3_CID_16048627.sdf Opening C:\Documents and Settings\andrake\My Documents\WORK f\PDBs\Cy3_CID_16048627.sdf Error reading C:\Documents and Settings\andrake\My Documents\WORK f\PDBs\Cy3_CID_16048627.sdf: Unexpected end of file (parser state: post header 1) in MOL/SDF file 'C:\Documents and Settings\andrake\My Documents\WORK f\PDBs\Cy3_CID_16048627.sdf' Done opening C:\Documents and Settings\andrake\My Documents\WORK f\PDBs\Cy3_CID_16048627.sdf I tried various atom selections and displaying all - but it seems obvious that it has not read in atoms and bonds. I have browsed around the documentation and only found a link to the sdf file formats. (I checked this out and tried editing out two of the header lines - ) It seems the error is unexpected end of file past the header. When checking the sdf file format information it seems that the $$$$ should be the only end of file mark - and there is only one at the end of my file. I also tried the whole procedure with a different sdf file from PubChem. Can anyone recognize what is causing the error in the enclosed file? Beyond that - are there other instructions on sdf file use in chimera that I did not see in searching the documentation? Thanks in advance, Mark -- Mark Andrake, Ph.D. Research Associate Fox Chase Cancer Center ICR428 7701 Burholme Ave. Philadelphia, PA 19111 215-728-3654 mark.andrake(a)fccc.edu 16048627 -OEChem-05040716572D 113118 0 0 0 0 0 0 0999 V2000 3.4030 4.5407 0.0000 S 0 0 0 0 0 0 0 0 0 0 0 0 11.7288 -2.2663 0.0000 S 0 0 0 0 0 0 0 0 0 0 0 0 2.5369 5.0407 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 3.9030 5.4067 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 2.9030 3.6746 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 11.7288 -3.2663 0.0000 O 0 5 0 0 0 0 0 0 0 0 0 0 10.7288 -2.2663 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 12.7288 -2.2663 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 6.1864 -3.2991 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 17.1265 4.0641 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 4.8972 -2.1423 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 16.7693 2.3693 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 6.6424 -5.4263 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 4.0223 -3.0754 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 18.7407 5.5226 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 18.0148 2.0782 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 6.9473 2.7359 0.0000 N 0 3 0 0 0 0 0 0 0 0 0 0 11.5196 1.7056 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 5.5185 -4.0434 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 18.1050 3.8579 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 6.9473 4.3454 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 10.1258 0.9008 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 7.5309 3.5407 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 10.5309 1.8086 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 6.0010 4.0407 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 10.8628 0.2337 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 6.0010 3.0407 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 11.7288 0.7337 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 7.7573 4.9318 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 6.6399 5.2970 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 7.2579 1.7854 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 9.4553 0.1588 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 9.2129 1.3091 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 12.1874 2.4499 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 8.5309 3.5407 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 10.0309 2.6746 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 5.1350 4.5407 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 10.8628 -0.7663 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 6.5901 1.0411 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 13.1659 2.2436 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 5.1350 2.5407 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 12.5948 0.2337 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 9.0309 2.6746 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 4.2690 4.0407 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 11.7288 -1.2663 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 4.2690 3.0407 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 6.9007 0.0906 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 12.5948 -0.7663 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 13.8338 2.9879 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 6.2329 -0.6537 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 14.8123 2.7817 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 6.5436 -1.6042 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 15.4801 3.5260 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 5.8757 -2.3485 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 16.4586 3.3198 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 5.7281 -5.0211 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 4.5238 -3.9406 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 18.8470 4.5283 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 18.5133 2.9450 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 4.8630 -5.5226 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 4.1187 -4.8548 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 19.7139 4.0298 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 19.5076 3.0513 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 8.1208 4.4296 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 8.2595 5.2953 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 7.3937 5.4340 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 7.2299 5.4876 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 6.4493 5.8870 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 6.0499 5.1064 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 7.8048 2.0774 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 7.6405 1.2975 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 8.9953 0.5745 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 9.0397 -0.3012 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 9.9154 -0.2568 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 9.4661 1.8751 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 8.6470 1.5623 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 8.9598 0.7432 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 11.6611 2.7775 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 12.4187 3.0251 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 8.8409 4.0776 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 10.3409 3.2116 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 5.1350 5.1607 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 10.3258 -1.0763 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 6.0432 0.7491 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 6.2075 1.5290 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 12.9347 1.6684 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 13.6923 1.9160 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 5.1350 1.9207 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 13.1318 0.5437 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 8.7209 2.1377 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 3.7321 2.7307 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 7.2833 -0.3973 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 7.4477 0.3826 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 13.1318 -1.0763 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 14.0650 3.5632 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 13.3074 3.3156 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 5.6860 -0.9457 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 5.8503 -0.1658 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 15.3386 2.4541 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 14.5810 2.2065 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 6.9261 -2.0921 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 7.0905 -1.3122 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 15.7114 4.1013 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 14.9538 3.8537 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 2.0000 4.7307 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 4.4029 -5.9383 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 5.2283 -6.0236 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 3.5812 -4.5457 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 3.7551 -5.3570 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 19.9651 4.5966 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 20.3038 3.8392 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 20.1244 2.9876 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 19.5087 2.4313 0.0000 H 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 0 0 0 0 1 4 2 0 0 0 0 1 5 2 0 0 0 0 1 44 1 0 0 0 0 2 6 1 0 0 0 0 2 7 2 0 0 0 0 2 8 2 0 0 0 0 2 45 1 0 0 0 0 3105 1 0 0 0 0 9 19 1 0 0 0 0 9 54 1 0 0 0 0 10 20 1 0 0 0 0 10 55 1 0 0 0 0 11 54 2 0 0 0 0 12 55 2 0 0 0 0 13 56 2 0 0 0 0 14 57 2 0 0 0 0 15 58 2 0 0 0 0 16 59 2 0 0 0 0 17 23 2 0 0 0 0 17 27 1 0 0 0 0 17 31 1 0 0 0 0 18 24 1 0 0 0 0 18 28 1 0 0 0 0 18 34 1 0 0 0 0 19 56 1 0 0 0 0 19 57 1 0 0 0 0 20 58 1 0 0 0 0 20 59 1 0 0 0 0 21 23 1 0 0 0 0 21 25 1 0 0 0 0 21 29 1 0 0 0 0 21 30 1 0 0 0 0 22 24 1 0 0 0 0 22 26 1 0 0 0 0 22 32 1 0 0 0 0 22 33 1 0 0 0 0 23 35 1 0 0 0 0 24 36 2 0 0 0 0 25 27 2 0 0 0 0 25 37 1 0 0 0 0 26 28 2 0 0 0 0 26 38 1 0 0 0 0 27 41 1 0 0 0 0 28 42 1 0 0 0 0 29 64 1 0 0 0 0 29 65 1 0 0 0 0 29 66 1 0 0 0 0 30 67 1 0 0 0 0 30 68 1 0 0 0 0 30 69 1 0 0 0 0 31 39 1 0 0 0 0 31 70 1 0 0 0 0 31 71 1 0 0 0 0 32 72 1 0 0 0 0 32 73 1 0 0 0 0 32 74 1 0 0 0 0 33 75 1 0 0 0 0 33 76 1 0 0 0 0 33 77 1 0 0 0 0 34 40 1 0 0 0 0 34 78 1 0 0 0 0 34 79 1 0 0 0 0 35 43 2 0 0 0 0 35 80 1 0 0 0 0 36 43 1 0 0 0 0 36 81 1 0 0 0 0 37 44 2 0 0 0 0 37 82 1 0 0 0 0 38 45 2 0 0 0 0 38 83 1 0 0 0 0 39 47 1 0 0 0 0 39 84 1 0 0 0 0 39 85 1 0 0 0 0 40 49 1 0 0 0 0 40 86 1 0 0 0 0 40 87 1 0 0 0 0 41 46 2 0 0 0 0 41 88 1 0 0 0 0 42 48 2 0 0 0 0 42 89 1 0 0 0 0 43 90 1 0 0 0 0 44 46 1 0 0 0 0 45 48 1 0 0 0 0 46 91 1 0 0 0 0 47 50 1 0 0 0 0 47 92 1 0 0 0 0 47 93 1 0 0 0 0 48 94 1 0 0 0 0 49 51 1 0 0 0 0 49 95 1 0 0 0 0 49 96 1 0 0 0 0 50 52 1 0 0 0 0 50 97 1 0 0 0 0 50 98 1 0 0 0 0 51 53 1 0 0 0 0 51 99 1 0 0 0 0 51100 1 0 0 0 0 52 54 1 0 0 0 0 52101 1 0 0 0 0 52102 1 0 0 0 0 53 55 1 0 0 0 0 53103 1 0 0 0 0 53104 1 0 0 0 0 56 60 1 0 0 0 0 57 61 1 0 0 0 0 58 62 1 0 0 0 0 59 63 1 0 0 0 0 60 61 1 0 0 0 0 60106 1 0 0 0 0 60107 1 0 0 0 0 61108 1 0 0 0 0 61109 1 0 0 0 0 62 63 1 0 0 0 0 62110 1 0 0 0 0 62111 1 0 0 0 0 63112 1 0 0 0 0 63113 1 0 0 0 0 M CHG 2 6 -1 17 1 M END > <PUBCHEM_COMPOUND_CID> 16048627 > <PUBCHEM_CACTVS_HBOND_ACCEPTOR> 15 > <PUBCHEM_CACTVS_HBOND_DONOR> 1 > <PUBCHEM_CACTVS_ROTATABLE_BOND> 19 > <PUBCHEM_CACTVS_SUBSKEYS> AAADcfB/vABgAAAAAAAAAAAAAAAAAWLFiAAwYAAAAAAAAFgBQAAAHgQECAAADgjB2AQyyYMQAIKoAyXyXHDCAEAhAgAoiBk4ZJgIIDLAkZGEIAhkhCDIyAedyMAPgAQAgAACAAAACAEAAAQAAAAAAAAAAA== > <PUBCHEM_IUPAC_OPENEYE_NAME> (2E)-1-[5-(2,5-dioxopyrrolidin-1-yl)oxycarbonylpentyl]-2-[(E)-3-[1-[5-(2,5-dioxopyrrolidin-1-yl)oxycarbonylpentyl]-3,3-dimethyl-5-sulfo-indol-2-yl]prop-2-enylidene]-3,3-dimethyl-indoline-5-sulfonate > <PUBCHEM_IUPAC_CAS_NAME> (2E)-1-[5-[(2,5-dioxopyrrolidin-1-yl)oxy-oxo-methyl]pentyl]-2-[(E)-3-[1-[5-[(2,5-dioxopyrrolidin-1-yl)oxy-oxo-methyl]pentyl]-3,3-dimethyl-5-sulfo-indol-2-yl]prop-2-enylidene]-3,3-dimethyl-indoline-5-sulfonate > <PUBCHEM_IUPAC_NAME> (2E)-1-[5-(2,5-dioxopyrrolidin-1-yl)oxycarbonylpentyl]-2-[(E)-3-[1-[5-(2,5-dioxopyrrolidin-1-yl)oxycarbonylpentyl]-3,3-dimethyl-5-sulfo-indol-2-yl]prop-2-enylidene]-3,3-dimethyl-indole-5-sulfonate > <PUBCHEM_IUPAC_SYSTEMATIC_NAME> (2E)-1-[5-(2,5-dioxopyrrolidin-1-yl)oxycarbonylpentyl]-2-[(E)-3-[1-[5-(2,5-dioxopyrrolidin-1-yl)oxycarbonylpentyl]-3,3-dimethyl-5-sulfo-indol-2-yl]prop-2-enylidene]-3,3-dimethyl-indole-5-sulfonate > <PUBCHEM_IUPAC_TRADITIONAL_NAME> (2E)-1-[5-(2,5-dioxopyrrolidin-1-yl)oxycarbonylpentyl]-2-[(E)-3-[1-[5-(2,5-dioxopyrrolidin-1-yl)oxycarbonylpentyl]-3,3-dimethyl-5-sulfo-indol-2-yl]prop-2-enylidene]-3,3-dimethyl-indoline-5-sulfonate > <PUBCHEM_NIST_INCHI> InChI=1/C43H50N4O14S2/c1-42(2)30-26-28(62(54,55)56)16-18-32(30)44(24-9-5-7-14-40(52)60-46-36(48)20-21-37(46)49)34(42)12-11-13-35-43(3,4)31-27-29(63(57,58)59)17-19-33(31)45(35)25-10-6-8-15-41(53)61-47-38(50)22-23-39(47)51/h11-13,16-19,26-27H,5-10,14-15,20-25H2,1-4H3,(H-,54,55,56,57,58,59)/f/h54H > <PUBCHEM_CACTVS_EXACT_MASS> 910.276 > <PUBCHEM_OPENEYE_MF> C43H50N4O14S2 > <PUBCHEM_OPENEYE_MW> 911.008 > <PUBCHEM_OPENEYE_CAN_SMILES> CC1(C2=C(C=CC(=C2)S(=O)(=O)O)[N+](=C1C=CC=C3C(C4=C(N3CCCCCC(=O)ON5C(=O)CCC5=O)C=CC(=C4)S(=O)(=O)[O-])(C)C)CCCCCC(=O)ON6C(=O)CCC6=O)C > <PUBCHEM_OPENEYE_ISO_SMILES> CC1(C2=C(C=CC(=C2)S(=O)(=O)O)[N+](=C1\C=C\C=C\3/C(C4=C(N3CCCCCC(=O)ON5C(=O)CCC5=O)C=CC(=C4)S(=O)(=O)[O-])(C)C)CCCCCC(=O)ON6C(=O)CCC6=O)C > <PUBCHEM_CACTVS_TPSA> 245 > <PUBCHEM_OPENEYE_MONOISOTOPICWT> 910.276 > <PUBCHEM_TOTAL_CHARGE> 0 > <PUBCHEM_HEAVY_ATOM_COUNT> 63 > <PUBCHEM_ATOM_DEF_STEREO_COUNT> 0 > <PUBCHEM_ATOM_UDEF_STEREO_COUNT> 0 > <PUBCHEM_BOND_DEF_STEREO_COUNT> 2 > <PUBCHEM_BOND_UDEF_STEREO_COUNT> 0 > <PUBCHEM_ISOTOPIC_ATOM_COUNT> 0 > <PUBCHEM_COMPONENT_COUNT> 1 > <PUBCHEM_CACTVS_TAUTO_COUNT> 9 > <PUBCHEM_BONDANNOTATIONS> 25 27 8 25 37 8 26 28 8 26 38 8 27 41 8 28 42 8 37 44 8 38 45 8 41 46 8 42 48 8 44 46 8 45 48 8 $$$$

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Suggestion for Metal Geometry Feature
by Walter Fast 07 May '07

07 May '07

Hi Elaine (I think!), I know there is a measure angle feature in Chimera. I have been using this to define metal ligand geometries in our protein structures (for example, distinguishing between square pyramidal and trigonal bypramidal geometries). Maybe if there is enough interest, this could be an automated feature in the future where a metal ion is selected and then all of the ligands and angles are automatically displayed along with an assigned geometry. We've been using the following reference for assigning them. Just a suggestion! Many thanks, Walt -- Walter Fast, Ph.D. Assistant Professor The University of Texas at Austin College of Pharmacy The Division of Medicinal Chemistry Phone: (512) 232-4000 Fax: (512) 232-2606 Lab: (512) 471-5839 Email: WaltFast(a)mail.utexas.edu http://www.utexas.edu/pharmacy/divisions/medicinalchem/faculty/fast.html

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Re: [Chimera-users] importing sdf files from PubChem
by Elaine Meng 05 May '07

05 May '07

Hi Mark, You're welcome! I tried getting an SDF directly from PubChem, and that caused the same error you sent, again fixed by cutting and pasting the contents into another SDF file. Cutting/pasting (or otherwise getting rid of bad invisible characters) is the way to go for SDFs from PubChem, at least for now. We may take a look at those files (although I doubt there is a high demand for viewing 2D structures in Chimera!). Best, Elaine ----- Elaine C. Meng, Ph.D. meng(a)cgl.ucsf.edu UCSF Computer Graphics Lab and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html On May 5, 2007, at 7:32 AM, Mark Andrake wrote: > Elaine, > > Thanks so much for your fast reply. > I can see from the users group that you guys do such a great job in > responding to user questions and concerns. > > After a quick gaze and trying on my laptop chimera at home - > it looks like there must be a hidden character issue. > I also had tried MS Word and saved it as a txt file > (in case there was some problem in the browser creating the file) > but maybe MS Word does not flatten out the file with just ASCI > characters. > > Next time I will try cutting and pasting through something like > WordPad first. > > In any case your test.sdf opened fine in my laptop chimera. > Thanks so much - have a great weekend! > > Mark > > Mark Andrake, Ph.D. > Research Associate > > Fox Chase Cancer Center > ICR428 > 7701 Burholme Ave. > Philadelphia, PA 19111 > 215-728-3654 > mark.andrake(a)fccc.edu > > > Elaine Meng wrote:Hi Mark, >> I've attached the test.sdf file mentioned in my previous message. >> Best, >> Elaine >> ----- >> Elaine C. Meng, Ph.D. meng(a)cgl.ucsf.edu >> UCSF Computer Graphics Lab and Babbitt Lab >> Department of Pharmaceutical Chemistry >> University of California, San Francisco >> http://www.cgl.ucsf.edu/home/meng/index.html >> >> >>

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selecting a unique ligand structure from multiple copy
by Jean-Didier Marechal 03 May '07

03 May '07

Hi everyone, I am working with different protein structures that have at least two copies of the ligand in their binding site. How could I select only one of them? (I'd like a selection specification that does not require the atom numbers if possible). Cheers JD -- Dr. Jean-Didier Maréchal Professor Assistant Physical-Chemistry Unit Department of Chemistry University Autonomous of Barcelona 08193 Bellaterra, Spain Tel: (+34).93.581.49.36 Fax: (+34).93.581.29.20 e-mail: jeandidier.marechal(a)uab.es

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wwPDB Announcement: Release of Remediated PDB Data
by Cathy Lawson 03 May '07

03 May '07

***wwPDB Announcement: Release of Remediated PDB Data*** The wwPDB has collaborated on a project to remediate the PDB archive and create a new set of corrected files. The entire archive has been reviewed and remediated with the objectives of improving the detailed chemical description of non- polymer and monomer chemical components; standardizing atom nomenclature; updating sequence database references and taxonomies; resolving any remaining differences between chemical and macromolecular sequences; improving the representation of viruses; and verifying primary citation assignments. In addition, the atom nomenclature for amino acids and nucleotides now conforms with IUPAC standards. A new FTP server containing the remediated data has been set up for testing. The access details for this site are provided at http:// www.wwpdb.org/remediation-downloads.html. The new ftp site will be updated weekly in concert with the current production site at ftp:// ftp.rcsb.org. Both sites share the same directory structure. Starting May 1, the remediated data will be served using gzip compression. Your input is very important to us. PDB users are encouraged to test the remediated data files between now and July 2007. The details of the final transition will be announced on the wwPDB website (http:// www.wwpdb.org) Detailed information about the wwPDB remediation project can be found at http://remediation.wwpdb.org. Comments about the files should be sent to info(a)wwpdb.org. Major announcements will be made at the wwPDB website (http:// www.wwpdb.org) as well as on the individual member websites.

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Ligand structure minimization
by Jean-Didier Marechal 02 May '07

02 May '07

Dear all, I don't know whether my problem falls in "bug" or "user request" category, pcorry if I use the wrong list. I am preparing a course where students will perform some protein-ligand dockings. I was thinking in minimizing the ligand in chimera using the "minimize structure" tool. I have installed the 1.2356 (that's what I thought but the message in the "About UCSF Chimera" pop up window says 1.2376 actually) version of chimera on ubuntu 6.10 and when I try to minimize my ligand (a HIV protease inhibitor), I am stopped at the PARMCHK run. Chimera seems to have compatibility problems with numpy. I join here the message given in the reply log file: .... Charges for residue U0E determined Total charge for #0: 1.0000 Running PARMCHK for U0E1.pdb command: /usr/local/chimera/bin/antechamber/exe/parmchk -i /tmp/tmpc6R8F8/parmchk.in.0 -f mol2 -o /tmp/tmpc6R8F8/frcmod.0 -p /usr/local/chimera/share/MMMD/parm/gaff.dat Finished PARMCHK for U0E1.pdbThis version of Chimera uses numpy for calculations. Numeric is only available in Chimera 1.2318 and earlier. Is there an easy way to move around this problem or should I install a earlier version of chimera for the moment? cheers, JD

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