- modeller_usage - salilab.org

FW: Protein+Metal Ion?
by Modeller Care 10 Mar '03

10 Mar '03

------ Forwarded Message From: Oliver Hucke <Oliver.Hucke(a)physchem.uni-freiburg.de> Date: Fri, 07 Mar 2003 10:00:39 +0100 To: Modeller Care <modeller-care(a)salilab.org> Subject: Re: Protein+Metal Ion? Dear Marc, you might define the subroutine 'special_restraints' at the end of your top script introducing the bonds between the metal ligand atoms and the metal atom in form of e.g. harmonic potentials. In my case the following introduced 6 ligand-Fe bonds: SUBROUTINE ROUTINE = 'special_restraints' SET ATOM_IDS 'NE2:501' 'FE2:1185' ADD_RESTRAINT RESTRAINT_PARAMETERS = 3 1 1 27 2 2 0 2.2 0.1 SET ATOM_IDS 'NE2:541' 'FE2:1185' ADD_RESTRAINT RESTRAINT_PARAMETERS = 3 1 1 27 2 2 0 2.2 0.1 SET ATOM_IDS 'NE2:815' 'FE2:1185' ADD_RESTRAINT RESTRAINT_PARAMETERS = 3 1 1 27 2 2 0 2.2 0.1 SET ATOM_IDS 'NE2:862' 'FE2:1185' ADD_RESTRAINT RESTRAINT_PARAMETERS = 3 1 1 27 2 2 0 2.2 0.1 SET ATOM_IDS 'OE1:830' 'FE2:1185' ADD_RESTRAINT RESTRAINT_PARAMETERS = 3 1 1 27 2 2 0 2.2 0.1 SET ATOM_IDS 'OE2:830' 'FE2:1185' RETURN END_SUBROUTINE Note: the numbers of the residues correspond to the modeller numbering scheme. You may get the correct numbers from an *.ini file. Info on the meaning of the ADD_RESTRAINT lines can be found in the chapter "specification of restraints" in the modeller manual Hope this helps! Best, Oliver > I would like to model a protein that contains Zn in the active site. In = > the template structure, two His residues are coordinated to the Zn. The = > target sequence also has these residues and the sequences display > 50% = > identity. How do I force the His residues to similarly coordinate the = > Zn in the modelled structure? If the Zn atom is in .pdb file, modeller = > doesn't seem to notice. Without the Zn atom present, the His = > sidechains simply flop around in the active site (not surprisingly). > > Marc Campitelli -- ____________________________________________________________________________ Oliver Hucke Inst. fuer Physikalische Chemie II Universitaet Freiburg Albertstr. 23a D-79104 Freiburg Tel. : +49-761-203-5130 (/-6179) Fax. : +49-761-203-6189 email: Oliver.Hucke(a)physchem.uni-freiburg.de ____________________________________________________________________________ ------ End of Forwarded Message

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Fluorescent residue
by John T. Penniston 07 Mar '03

07 Mar '03

I'm attempting to make a model of a protein containing a fluorescent residue attached to a specific Lysine. The structure of the Lysyl-fluorophore is: (view it in a fixed font). Cl / NH2 N-C | / \ CH-CH2-CH2-CH2-CH2-NH-C N H H | \ / | | C=02H N-C C-C CH2-CH3 \ / \ / C C-N \ / \ C-C CH2-CH3 | | H H Both rings are aromatic, but I couldn't represent that above. I've modified all of the necessary files to account for the radius and mass of the Chlorine, and the name (TAK or t)of the new residue. I'm attaching a text file of one of my attempts to define this residue in the top_heav.lib file. Now I'm starting to modify the parameter file (par.lib), and have figured out at least part of how to do that, but modifying that file does not seem to give me a better looking residue. This residue should be flat from the 1st side chain N to the last N(CH2)2, including both rings. Mine generally come out slightly bent! The attached file assumes no changes to the parameter file. Can anyone give me help beyond what is in the manual? Thanks for your attention. John -- John T. Penniston, Ph.D. Dept. of Biochemistry and Molecular Biology Guggenheim 16, Mayo Clinic 200 First St. SW Rochester, MN 55905 USA RESI TAK 0.00000 ATOM N NH1 -0.17091 ATOM CA CT1 0.11455 ATOM CB CT2 -0.06545 ATOM CG CT2 -0.06545 ATOM CD CT2 -0.06545 ATOM CE CT2 0.066 ATOM NZ1 NH1 -0.293 ATOM CH1 CPH2 0.488 ATOM NQ1 NN3A -0.387 ATOM NQ2 NN3A -0.406 ATOM CI1 CN5 0.390 ATOM CI2 CN2 0.544 ATOM NK1 NN3A -0.29091 ATOM CLK CL -0.318 ATOM CK1 CA -0.055 ATOM CL1 CA -0.002 ATOM CL2 CA -0.001 ATOM CM1 CA -0.115 ATOM CM2 CA -0.114 ATOM CN1 CA 0.198 ATOM NX1 NH1 -0.228 ATOM CO1 CT2 0.074 ATOM CP1 CT3 -0.166 ATOM CO2 CT2 0.074 ATOM CP2 CT3 -0.166 ATOM C C 0.83455 ATOM O O -0.18545 BOND CB CA CG CB CD CG CE CD NZ1 CE CH1 NZ1 BOND NQ1 CH1 NQ2 CH1 CI1 NQ1 CI2 NQ2 NK1 CI1 BOND NK1 CI2 CLK CI2 BOND CK1 CI1 CL1 CK1 CL2 CK1 CM1 CL1 CM2 CL2 BOND CN1 CM1 CN1 CM2 CN1 NX1 NX1 CO1 NX1 CO2 BOND CO1 CP1 CO2 CP2 BOND N CA O C C CA C +N IMPR C CA +N O CA N C CB CE NZ1 CH1 NQ1 IMPR NZ1 CH1 NQ1 CI1 CH1 NQ1 CI1 NK1 NQ1 CI1 NK1 CI2 IMPR CI1 NK1 CI2 NQ2 NK1 CI2 NQ2 CH1 CI2 NQ2 CH1 NZ1 IMPR CE NZ1 CH1 NQ1 IMPR CI1 NK1 CI2 CLK CH1 NQ2 CI2 CLK !CH1 NQ1 CI1 CK1 IMPR CI2 NK1 CI1 CK1 CK1 CI1 NK1 CI2 IMPR CL2 CL1 CK1 CI1 CL1 CK1 CI1 NK1 CL2 CK1 CI1 NQ1 IMPR CI1 CK1 CL1 CM1 !CI1 CK1 CL2 CM2 IMPR CK1 CL1 CM1 CN1 CL1 CM1 CN1 CM2 IMPR CM1 CN1 CM2 CL2 CN1 CM2 CL2 CK1 IMPR CL1 CM1 CN1 NX1 CL2 CM2 CN1 NX1 IMPR CM1 CM2 CI1 CLK CM1 CI1 NZ1 NQ2 IMPR NK1 NQ1 NQ2 NZ1 NK1 CI1 CI2 CH1 CHI NQ1 NQ2 NK1 IMPR CI1 CLK CH1 NQ1 IC -C N CA C 1.3496 122.4500 180.0000 109.8600 1.5227 IC N CA C +N 1.4544 109.8600 180.0000 117.1200 1.3511 IC +N CA *C O 1.3511 117.1200 180.0000 121.4000 1.2271 IC CA C +N +CA 1.5227 117.1200 180.0000 124.6700 1.4565 IC N C *CA CB 1.4544 109.8600 123.6400 112.2600 1.5552 IC N CA CB CG 1.4544 110.7000 180.0000 115.9500 1.5475 IC CA CB CG CD 1.5552 115.9500 180.0000 114.0100 1.5384 IC CB CG CD CE 1.5552 115.9500 180.0000 114.0100 1.5384 IC CG CD CE NZ1 1.5475 114.0100 180.0000 107.09 1.45 IC CD CE NZ1 CH1 1.5384 107.0900 180.0000 120.00 1.35 IC CE NZ1 CH1 NQ1 1.45 120.00 180.0000 120.00 1.26 IC NZ1 NQ2 *CH1 NQ1 1.35 120.0000 180.0000 120.00 1.26! IC NQ1 NZ1 *CH1 NQ2 1.26 120.0000 180.0000 120.00 1.26! IC NZ1 CH1 NQ1 CI1 1.35 120.0000 -180.0000 120.00 1.26 IC NZ1 CH1 NQ2 CI2 1.35 120.0000 -180.0000 120.00 1.26 IC CH1 NQ1 CI1 NK1 1.26 120.0000 -0.1900 120.00 1.26 IC NK1 NQ2 *CI2 CLK 1.26 120.0000 -180.0000 120.00 1.72 IC NK1 NQ1 *CI1 CK1 1.26 120.0000 -180.0000 120.00 1.4 IC NQ1 CI1 CK1 CL1 1.2600 120.0000 180.0000 120.00 1.4 IC NQ1 CI1 CK1 CL1 1.2600 120.0000 180.0000 120.00 1.4 IC NK1 CI1 *CK1 CL2 1.27 120.0000 -180.0000 120.00 1.4 IC CI1 CK1 CL1 CM1 1.4 120.0000 -180.0000 120.00 1.4 IC CI1 CK1 CL2 CM2 1.4 120.0000 -180.0000 120.00 1.4 IC CK1 CL2 CM2 CN1 1.4 120.0000 0.000 120.00 1.4 IC CK1 CL1 CM1 CN1 1.4 120.0000 180.000 120.00 1.4 IC CL1 CK1 CI1 NK1 1.4 120.0000 180.000 120.00 1.26 IC CN1 NX1 CO1 CP1 1.35 120.0 120. 109. 1.53 IC CM1 CN1 NX1 CO1 1.4 120.0 -180. 120. 1.46 IC CN1 NX1 CO2 CP2 1.35 120.0 120. 109. 1.53 IC CM2 CN1 NX1 CO2 1.4 120.0 180. 120. 1.46 IC CM2 CM1 *CN1 NX1 1.4 120.5500 -178.9800 120.4100 1.35 PATC FIRS NTER LAST CTER

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Protein+Metal Ion?
by Modeller Care 07 Mar '03

07 Mar '03

Non-member submission forwarded by the list-owner -------------------------------------------------------------------------- I would like to model a protein that contains Zn in the active site. In = the template structure, two His residues are coordinated to the Zn. The = target sequence also has these residues and the sequences display > 50% = identity. How do I force the His residues to similarly coordinate the = Zn in the modelled structure? If the Zn atom is in .pdb file, modeller = doesn't seem to notice. Without the Zn atom present, the His = sidechains simply flop around in the active site (not surprisingly). Marc Campitelli

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FW: New to Modeller !!
by Andrej Sali 05 Mar '03

05 Mar '03

-- Andrej Sali, Professor Departments of Biopharmaceutical Sciences and Pharmaceutical Chemistry, and California Institute for Quantitative Biomedical Research Mission Bay Genentech Hall 600 16th Street, Suite N472D University of California, San Francisco San Francisco, CA 94143-2240 (CA 94107 for direct delivery by courier) Tel +1 (415) 514-4227; Fax +1 (415) 514-4231 Tel Assistant +1 (415)514-4228; Lab +1 (415) 514-4232, 4233, 4239 Email sali(a)salilab.org; Web http://salilab.org -----Original Message----- From: Andrej Sali [mailto:sali@salilab.org] Sent: Wednesday, March 05, 2003 7:05 PM To: 'Urmi Doshi' Subject: RE: New to Modeller !! I suggest you run the executable directly $MODINSTALL6v2/bin/mod6v2_iris4d modfile.top Check that the executable is identified as such (the x flag in the ls -ls output), and make sure it did not get corruputed during ftp. If you cannot set the stacksize limit to a large enough value, you need to ask your sysadmin to do it for you. Some sysadmins set system wide limitations that are frequently not very helpful ;-) I am not sure this is the problem here ... Andrej -- Andrej Sali, Professor Departments of Biopharmaceutical Sciences and Pharmaceutical Chemistry, and California Institute for Quantitative Biomedical Research Mission Bay Genentech Hall 600 16th Street, Suite N472D University of California, San Francisco San Francisco, CA 94143-2240 (CA 94107 for direct delivery by courier) Tel +1 (415) 514-4227; Fax +1 (415) 514-4231 Tel Assistant +1 (415)514-4228; Lab +1 (415) 514-4232, 4233, 4239 Email sali(a)salilab.org; Web http://salilab.org > -----Original Message----- > From: owner-modeller_usage(a)salilab.org > [mailto:owner-modeller_usage@salilab.org] On Behalf Of Urmi Doshi > Sent: Wednesday, October 02, 2002 3:30 PM > To: modeller_usage(a)salilab.org > Subject: Re: New to Modeller !! > > > Thank you all. I tried mod and mod6v2 , but doesn't run. I > get this message everytime I start the UNIX shell limit > stacksize unlimited : can't remove limit which is set in > .cshrc. Is this the reason why modeller does not seem to work? -Urmi > ----- Original Message ----- > From: "Peter C. Lai" <sirmoo(a)cowbert.2y.net> > To: "Luis Rosales" <ludwig(a)biomedicas.unam.mx> > Cc: "Bozidar Yerkovich" <bozidar(a)salilab.org>; "Urmi Doshi" > <urdoshi(a)wam.umd.edu>; <modeller_usage(a)salilab.org> > Sent: Tuesday, March 04, 2003 7:51 PM > Subject: Re: New to Modeller !! > > > > I am using a default installation on my SGI Octane. 'mod6v2' is the > > shell script in $MODINSTALL6v2/bin, which calls mod6v2_iris4d (since > > iris4d is what > $EXECUTABLE_TYPE6v2 is > > set > to) > > LIBS_LIB6v2 is set to $MODINSTALL6v2/modlib/libs.lib. > > > > hope that helps in terms of configuration. > > > > On Tue, Mar 04, 2003 at 04:53:01PM -0600, Luis Rosales wrote: > > > Hi: > > > > > > Maybe your command for modeller is not "mod", mine is > mod6v2 and is > > > the default I got from the installation script... > > > > > > Hope this helps, > > > > > > Luis > > > > > > > > > ----- Original Message ----- > > > From: "Bozidar Yerkovich" <bozidar(a)salilab.org> > > > To: "Urmi Doshi" <urdoshi(a)wam.umd.edu> > > > Cc: <modeller_usage(a)salilab.org> > > > Sent: Tuesday, March 04, 2003 3:36 PM > > > Subject: Re: New to Modeller !! > > > > > > > > > > > > > > Urmi, > > > > Did you source your .cshrc file? > > > > Bozidar > > > > > > > > On Tue, 1 Oct 2002, Urmi Doshi wrote: > > > > > > > > > Hi, > > > > > > > > > > I have just installed Modeller exactly the way as given in the > User's > > > Manual on an SGI Fuel. However, when I try running the > command "mod > > > model-default" which is a script file available with > modeller, the > > > error message I get is " 'mod' command not found". > > > > > > > > > > I am sure there's something silly that I am missing, but can't > figure > > > out. Is there any stack requirement for running MODELLER on SGI > > > FUEl? > > > > > Can anyone help me start using MODELLER ? > > > > > > > > > > - Urmi Doshi > > > > > > > > > > > > > > > -- > > Peter C. Lai > > University of Connecticut > > Dept. of Molecular and Cell Biology > > Yale University School of Medicine > > SenseLab | Research Assistant > > http://cowbert.2y.net/ > > > > >

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FW: problem with large system
by Modeller Care 03 Mar '03

03 Mar '03

------ Forwarded Message From: cathy <cathy(a)bach.urbb.jussieu.fr> Date: Mon, 03 Mar 2003 18:00:38 +0100 To: modeller-care(a)salilab.org Subject: (no subject) Dear Sir, I try to use Modeller package (6.2 version) for a large system ( larger than 500 residues). The program fails due to the dimesion. Is there any way to perform computations for such a large system ? Previously, I have noticed that different versions for modeller exist for large systems. Thank you C.E -- Pr. Catherine ETCHEBEST,Universite Paris VII, Equipe de Bioinformatique Moleculaire INSERM E0346,Case Courrier 7113, 2 Place Jussieu 75251 Paris Cedex 05 Tour 53, Couloir 53-54 1er Etage Porte 13,Tel:01-44-27-77-19,Fax : 01 43 26 38 30 EMail:cathy@urbb.jussieu.fr ------ End of Forwarded Message

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FW: modeller in CCP4 (fwd)
by Andrej Sali 03 Mar '03

03 Mar '03

-- Andrej Sali, Professor Departments of Biopharmaceutical Sciences and Pharmaceutical Chemistry, and California Institute for Quantitative Biomedical Research Mission Bay Genentech Hall 600 16th Street, Suite N472D University of California, San Francisco San Francisco, CA 94143-2240 (CA 94107 for direct delivery by courier) Tel +1 (415) 514-4227; Fax +1 (415) 514-4231 Tel Assistant +1 (415)514-4228; Lab +1 (415) 514-4232, 4233, 4239 Email sali(a)salilab.org; Web http://salilab.org -----Original Message----- From: Bozidar Yerkovich [mailto:bozidar@salilab.org] Sent: Wednesday, February 26, 2003 4:18 PM To: Andrej Sali Subject: modeller in CCP4 (fwd) ---------- Forwarded message ---------- Date: Fri, 21 Feb 2003 14:32:44 -0300 From: Frederico Moraes Ferreira <fredi(a)if.sc.usp.br> To: bozidar(a)salilab.org Subject: modeller in CCP4 Dear Sir, I have been trying to run Modeller6v2 on the CCP4 interface unsuccessfully. The file $MODINSTALL6v2/script/setmodeller is missing or do not take part of this version anymore. So I am writing to ask you how to overcome this problem for the Modeller6v2 or take a previus Modeller version. Thanks in advance. Frederico Moraes Ferreira

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FW: stacksize limit
by Modeller Care 03 Mar '03

03 Mar '03

------ Forwarded Message From: Siavoush Dastmalchi <siavoush11(a)yahoo.com> Date: Mon, 3 Mar 2003 09:30:52 -0800 (PST) To: modeller-care(a)salilab.org Subject: stacksize limit Dear Modeller team, I am trying to install Modeller6v2 on my SUN computer. I have gone through the installation upto the end of step 4. When I source the .cshrc file I get the following error: limit: stacksize: can't remove limit I am installing the Modeller while I am the root. I guess the root should have enough previlage to change the limit of stacksize (make unlimit), but it seems that it is not the case. I appreciate your kind attention. Cheers, Siavoush Dastmalchi __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ ------ End of Forwarded Message

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FW: rationale for assigining the coordinates with a break ( | )
by Modeller Care 28 Feb '03

28 Feb '03

------ Forwarded Message From: "Dr.Shyam Charan Mallena" <shyam(a)gvkbio.com> Reply-To: shyam(a)gvkbio.com Date: Fri, 28 Feb 2003 12:23:09 +0530 To: bozidar(a)salilab.org, modeller-care(a)salilab.org Subject: rationale for assigining the coordinates with a break ( | ) Sir, {Sub : To know how or what considerations are followed to model a protein with breaks} It is a common occurance to get breaks in reference proteins "|" whis is due to non availability of a certain number of coordinates in the reference protein. In the assigining of coordinate manually this reference is not acceptable many a times. But it works many a times with modeller (I've used Modeller from insight II (Accelrys) at bioCampus - a subsidary of gvkBio Sciences - Hyderabad India). What is the rationale for assigining the coordinates with a break ( | ) in reference protein in modeller. Also how exactly is the minimization or dymanics done (If at all) in modeller. What are the considerations for such an approach ? Regarding model with a loop : In Modeller : Consider the following example : PDF Violations Energy Model 1 : 6693.9 392.083 Model 2 : 960.0 749.346 which model is prefferable to the other and the rationale. thanking you, Dr. SHYAM CHARAN MALLENA CALL # +91 -40 5551 9990 Ext : 149 210, My Home Tycoon, Kundanbagh, Begumpet Hyderabad - 500016 . ------ End of Forwarded Message

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It`s alive!!!
by Luis Rosales 27 Feb '03

27 Feb '03

Hi to all: I just made modeller work!!!! I still don`t know what my problem was, but as I can run the examples just fine, I figured the problem were my files. Briefly, I just delete my old files and created them from scratch with nedit... My final files looked like this: (model.top, my script): INCLUDE # Include the predefined TOP routines SET ALNFILE = 'aln.ali' # alignment filename SET KNOWNS = '1cx1' # codes of the templates SET SEQUENCE = '1dnj' # code of the target SET ATOM_FILES_DIRECTORY = '../bin/modeller6v2/examples/atom_files/' # directories SET STARTING_MODEL= 1 # index of the first model SET ENDING_MODEL = 2 # index of the last model # (determines how many models to calculate) SET DEVIATION = 4.0 # have to be >0 if more than 1 model SET RAND_SEED = -12312 # to have different models from another TOP file CALL ROUTINE = 'model' # do homology modelling (aln.ali, my alignment file) C; First alignment >P1;1cx1 structureX:1cx1:FIRST:A:LAST:A:template:HCV: 2.50:-1.00 GSVVIVGRIILSGSGSITAYSQQTRGLLGCIITSLTGRDKNQVEGEVQVVSTATQSFLATCVNGVCWTVYHGAGSK TLAG PKGPITQMYTNVDQDLVGWQAPPGARSLTPCTCGSSDLYLVTRHADVIPVRRRGDSRGSLLS-------PRPVSYL KGSS GGPLLCPSGHAVGIFRAAVCTRGVAKAVDFVPVESMETTMRSPVFTDNSSPPAVPQSFQVAHLHAPTGSGKSTKVP AAYA AQGYKVLVLNPSVAATLGFGAYMSKAHGID------PNIRTGVRTITTGAPVTYSTYGKFLADGGCSGGAYDIIIC DECH STDSTTILGIGTVLDQAETAGARLVVLATATPPGSVTVPHPNIEEVALSNTGEIPFYGKAIPIEAI--RGGRHLIF CHSK KKCDELAAKLSGLGINAVAYYRGLDVSVIPT---IGDVVVVATDALMTGYTGDFDSVIDCNTCVTQTVDFSLDPTF TIET TTVPQDAVSRSQRRGRTGRGRRGIYRFVTPGERPSGMFDSSVLCECYDAGCAWYELTPAETSVRLRAYLNTPGLPV CQDH LEFWESVFTGLTH-IDAHFLSQTKQAGDNFPYLVAYQATVCARAQAPPPSWDQMWKCLIRLKPTLH---GPTPLLY RLGA VQNEVTLTHPITKYIMACMSADLEVVT* >P1;1dnj sequence:1dnj:FIRST:@:LAST:@:model:dengue: 2.50:-1.00 GSSPILSITISEGSGS----AGVLWDVPSPPPVGKAELEDGAYRIKQRGILGYSQIGAGVYKEGTFHTMWHVTRGA VLMH KGKRIEPSWADVKKDLISYGG---GWKLEGEWKEGEEVQVLALE-PGKNPRAVQ-TKPGLFKTNTGTIGAVSLDFS PGTS GSPIVDRKGKVVGLYGNGVVTRSGAYVSAIAQTEKSIEDNPEIEDD-------IFRKKRLTIMDLHPGAGKTKRYL PAIV REAIKRGLRTLILAPTRVVAAEMEEALRGLPIRYQTPAIRAEHTGREIVDLMCHATFTMRLLSPV-RVPNYNLIIM DEAH FTDPASIAARGYISTRVEMGE-AAGIFMTATPPGSRDPFPQ-SNAPIMDEEREIPERSWNSGHEWVTDFKGKTVWF VPSI KAGNDIAACLRKNGKKVIQLSRKTFDSEYVKTRANDWDFVVTTDISEMGANFKAERVIDPRRCMKPVILT-DGEER VILA GPMPVTHSSAAQRRGRIGRNPKNENDQYI---------YMGEPLENDEDCAHWKEAKMLLDNINTPEGIIPSMFEP EREK VDAIDGEYRLRGEARKTFVDLMRRG---DLPVWLAYRVAAEGINYADRRWCFDGIKNNQILEE-NVEVEIWTKEGE RKKL KPRWLDARIYSDPLALKEFKEFAAGRK* Hope this helps, Holton... And thanks to all for your help!!!! Luis

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gap creation and extension penalties
by Chris de Graaf 27 Feb '03

27 Feb '03

Dear Modellers, I am working on a structural alignment between 6 protein structures with an average seq. identity of approx. 25 % and average homology of approx. 45 %. Usage of default values for gap creation and extension penalties for structure/structure superposition (0.0 and 1.75 respecrtively) result in the introduction of multiple (relatively) large gaps in the multiple sequence alignment. Of course I can "avoid" this by increasing both gap creation and extension penalties, but what I would like to know which penalty values are "reasonable" in this case. Thanking you in advance and with kind regards, Chris de Graaf -- drs. C. de Graaf LACDR - Division Molecular Toxicology Department Pharmacochemistry Vrije Universiteit Amsterdam De Boelelaan 1083 1081 HV Amsterdam Tel. (31) 020-4447608 Fax. (31) 020-4447610

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