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Dear all

I have been trying to run a FREQ job on a cage lactam. The job with the following input was done on PC and completed with no problems.
_______________________________________________________
%chk=m1s10q
#N ONIOM(RHF/STO-3G:PM3) GEOM=CHECKPOINT FREQ
 
Mech1str10 - product - FREQ
 
1   1
________________________________________________________
However, when the input is changed to 6-31G** the job crashes giving a "CONVERGENCE FAILURE" error message. The higher level job is run on a DEC Alpha.
I appreciate some advice since I am new in the field.
Thank you.

Thishana Singh
M L Sultan Technikon
Department of Chemistry
41/43 Centennary Road
Durban
4000
South Africa
Telephone : 27 31 3085521/2/3
Fax : 27 31 3085400
email : singht@wpo.mlsultan.ac.za



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Dear all

I have been trying to run a FREQ job on a cage lactam. The job with the following input was done on PC and completed with no problems.
_______________________________________________________
%chk=m1s10q
#N ONIOM(RHF/STO-3G:PM3) GEOM=CHECKPOINT FREQ
 
Mech1str10 - product - FREQ
 
1   1
________________________________________________________
However, when the input is changed to 6-31G** the job crashes giving a "CONVERGENCE FAILURE" error message. The higher level job is run on a DEC Alpha.
I appreciate some advice since I am new in the field.
Thank you.

Thishana Singh
M L Sultan Technikon
Department of Chemistry
41/43 Centennary Road
Durban
4000
South Africa
Telephone : 27 31 3085521/2/3
Fax : 27 31 3085400
email : singht@wpo.mlsultan.ac.za



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Hello

I came across your site today and was interested in the like minded nature of its content with my own.

In fact the Self Esteem Advisory Service set up around 3 years ago now attracts visitors from all over the world. I have found that they are interested in not only my site but also the content of other sites that expand or complement our own material.

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--------------8314590225DCB0CF31E8597F
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Dear Sirs,

I just recently learnt about your website and lists, and wonder if you
could announce the following meeting on your site/lists, since I believe
the meeting also overlaps with your interest groups. Thank you.

    Yours sincerely,

    Hans Liljenström, director
    Agora for Biosystem


             NORDIC SYMPOSIUM ON COMPUTATIONAL BIOLOGY 2000

                            18-23 JUNE 2000

                 AGORA FOR BIOSYSTEMS, SIGTUNA, SWEDEN

            Co-organized by Agora for Biosystems and Nordita

           An updated version of the program is available on
        http://www.agora.kva.se/meetings/CompBio2000/program.html

The symposium addresses questions of high current interest in biology
and related.fields. The main focus is on bioinformatics, but
computational methods applied to molecular and cellular biology, as well
as computational neurobiology and ecology will also be included.

The symposium is primarily intended to attract young scientists in the
Nordic and surrounding countries, but all interested are welcome as long
as space allows. A major objective is to give an introduction to some of
the most important problems and challenges within the field. This will
be accomplished by several tutorials, in addition to invited talks given
by top scientists from abroad and from the region. There will also be
ample time for poster presentations and for formal and informal
discussions.

TOPICS INCLUDE:
- Bioinformatics
- Macromolecular dynamics
- Computational (functional) genomics
- Computational neurobiology
- Computational ecology

INVITED SPEAKERS INCLUDE:
Edward Cox,  Dept. of Molecular Biology, Princeton University
Mats Gyllenberg, Dept. of Mathematics, University of Turku
John Hopfield, Dept. of Molecular Biology, Princeton University
Eric Jakobsson, Dept. of Molecular and Integrative Physiology,
University of Illinois
Inge Jonassen, Dept. of Informatics, University of Bergen
Erik Lindahl, Dept. of Physics, Royal Institute of Technology
Kristian Lindgren, Dept. of Physical Resource Theory, Chalmers and
Göteborg University
Michael Mackey, Department of Physiology, McGill University
Johan Paulsson, Dept. of Molecular Biology, Uppsala University
Hans Plesser, Dept. of Physics, Göttingen
Dirk Repsilber, Inst. for Forest Genetics and Forest Tree Breeding,
University of Hamburg
Mattias Wahde, Dept. of Mechanical Engineering, Chalmers

ORGANIZING COMMITTEE
Soren Brunak, Center for Biological Sequence Analysis, Technical
University of Denmark
Olle Edholm, Theoretical Physics, Royal Institute of Technology,
Stockholm
Gaute Einevoll, Dept. of Physics, Agricultural University of Norway
Jarl-Thure Eriksson, Electrical Engineering Labs, Tampere University
Gunnar von Heijne, Center for Bioinformatics, Stockholm University
John Hertz, Nordita, Copenhagen
Hans Liljenström, Agora for Biosystems, Sigtuna
Dietrich von Rosen, Dept. of Biometrics, SLU, Uppsala

More information and registration form can be obtained:

   - http://www.agora.kva.se/meetings/CompBio2000
     Please register electronically using a web browser if possible.
    Abstract submissions can also be made via the online registration
form.

   - email: hans.liljenstrom@sdi.slu.se
   - by mail:  Hans Liljenstrom
                      Dept. of Biometrics, SLU
                      Box 7013
                      SE-750 07 Uppsala
                      Sweden
                      FAX: +46-18-673502

--------------8314590225DCB0CF31E8597F
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit

<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Dear Sirs,
<p>I&nbsp;just recently learnt about your website and lists, and wonder
if you could announce the following meeting on your site/lists, since I&nbsp;believe
the meeting also overlaps with your interest groups. Thank you.
<p>&nbsp;&nbsp;&nbsp; Yours sincerely,
<p>&nbsp;&nbsp;&nbsp; Hans Liljenstr&ouml;m, director
<br>&nbsp;&nbsp;&nbsp; Agora for Biosystem
<br>&nbsp;
<center>
<p>NORDIC SYMPOSIUM ON COMPUTATIONAL BIOLOGY 2000
<p>18-23 JUNE 2000
<p>AGORA FOR BIOSYSTEMS, SIGTUNA, SWEDEN
<p>Co-organized by Agora for Biosystems and Nordita
<p>An updated version of the program is available on
<br><A HREF="http://www.agora.kva.se/meetings/CompBio2000/program.html">http://www.agora.kva.se/meetings/CompBio2000/program.html</A></center>

<p>The symposium addresses questions of high current interest in biology
and related.fields. The main focus is on bioinformatics, but computational
methods applied to molecular and cellular biology, as well as computational
neurobiology and ecology will also be included.
<p>The symposium is primarily intended to attract young scientists in the
Nordic and surrounding countries, but all interested are welcome as long
as space allows. A major objective is to give an introduction to some of
the most important problems and challenges within the field. This will
be accomplished by several tutorials, in addition to invited talks given
by top scientists from abroad and from the region. There will also be ample
time for poster presentations and for formal and informal discussions.
<p>TOPICS INCLUDE:
<br>- Bioinformatics
<br>- Macromolecular dynamics
<br>- Computational (functional) genomics
<br>- Computational neurobiology
<br>- Computational ecology
<p>INVITED SPEAKERS INCLUDE:
<br>Edward Cox,&nbsp; Dept. of Molecular Biology, Princeton University
<br>Mats Gyllenberg, Dept. of Mathematics, University of Turku
<br>John Hopfield, Dept. of Molecular Biology, Princeton University
<br>Eric Jakobsson, Dept. of Molecular and Integrative Physiology, University
of Illinois
<br>Inge Jonassen, Dept. of Informatics, University of Bergen
<br>Erik Lindahl, Dept. of Physics, Royal Institute of Technology
<br>Kristian Lindgren, Dept. of Physical Resource Theory, Chalmers and
G&ouml;teborg University
<br>Michael Mackey, Department of Physiology, McGill University
<br>Johan Paulsson, Dept. of Molecular Biology, Uppsala University
<br>Hans Plesser, Dept. of Physics, G&ouml;ttingen
<br>Dirk Repsilber, Inst. for Forest Genetics and Forest Tree Breeding,
University of Hamburg
<br>Mattias Wahde, Dept. of Mechanical Engineering, Chalmers
<p>ORGANIZING COMMITTEE
<br>Soren Brunak, Center for Biological Sequence Analysis, Technical University
of Denmark
<br>Olle Edholm, Theoretical Physics, Royal Institute of Technology, Stockholm
<br>Gaute Einevoll, Dept. of Physics, Agricultural University of Norway
<br>Jarl-Thure Eriksson, Electrical Engineering Labs, Tampere University
<br>Gunnar von Heijne, Center for Bioinformatics, Stockholm University
<br>John Hertz, Nordita, Copenhagen
<br>Hans Liljenstr&ouml;m, Agora for Biosystems, Sigtuna
<br>Dietrich von Rosen, Dept. of Biometrics, SLU, Uppsala
<p>More information and registration form can be obtained:
<p>&nbsp;&nbsp; - <A HREF="http://www.agora.kva.se/meetings/CompBio2000">http://www.agora.kva.se/meetings/CompBio2000</A>
<br>&nbsp;&nbsp;&nbsp;&nbsp; Please register electronically using a web
browser if possible.
<br>&nbsp;&nbsp;&nbsp; Abstract submissions can also be made via the online
registration form.
<p>&nbsp;&nbsp; - email: hans.liljenstrom@sdi.slu.se
<br>&nbsp;&nbsp; - by mail:&nbsp; Hans Liljenstrom
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Dept. of Biometrics, SLU
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Box 7013
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
SE-750 07 Uppsala
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Sweden
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
FAX: +46-18-673502</html>

--------------8314590225DCB0CF31E8597F--



From chemistry-request@server.ccl.net  Wed May 31 09:44:53 2000
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Date: Wed, 31 May 2000 14:49:39 +0100
From: Mark Forster <mforster@nibsc.ac.uk>
Organization: NIBSC
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To: Galina Chaban <galinac@fh.huji.ac.il>
CC: chemistry@ccl.net
Subject: Re: CCL:OPLS-AA in Tinker
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Dear Galina

As I understand it the procedure with adding parameters to Tinker is the following

1) Make sure that every atom in the tinker coordinate (.xyz) file has an atom type
    defined - eg 21 for the carboxylic C atom in your example.
2) Look in the relevant .key file to find the name of the parameter file (.prm)
    that is being used.
3) make an entry in the .prm file of the format

bond        21        26        656.0          1.250
                                         ^                 ^
                                         force            bond
                                         constant       length

4) One you fix up the bond length parameters, you will most
    likely have to do the same for angle and torsion types.
5) To test the parameter file modifications run the analyze.x
    program using your .xyz and .key files as input.


Hope this helps.

Mark F


Galina Chaban wrote:

> Hello everyone,
>
> I would like to do a calculation of glycine molecule using
> Tinker program and OPLS-AA potential.
>
> I wanted to use these atom types for glycine carboxyl group:
> atom    107    21    C       "COOH Carboxylic Acid"      6     12.000     3
> atom    108    26    OH      "OH Carboxylic Acid"        8     15.999     2
> atom    109    22    O       "C=O Carboxylic Acid"       8     15.999     1
> atom    110     8    HO      "COOH Carboxylic Acid"      1      1.008     1
> and these for amine group:
> atom     70    19    NT      "NH2 Primary Amine"         7     14.007     3
> atom     71    20    H2      "HN Primary Amine"          1      1.008     1
>
> However, when I try to run it, the program stops with the message that
> some parameters are not found. When I check the parameters file,
> I can see that indeed many parameters are missing: for example,
> bond parameters for atom pairs 21-26, 26-8, 19-20.
>
> Has anyone experienced this problem? How could I get the missing
> parameter values?
> I would appreciate any suggestions and references that could help.
>
> Galina
> -------------------------------------------------------------------
> Dr. Galina Chaban
> Fritz Haber Research Center for
> Molecular Dynamics.
> Hebrew University of Jerusalem
> Jerusalem, Israel 91904
> Tel:   972-2-6585936
> Fax:   972-2-6513742
> e-mail: galinac@fh.huji.ac.il
>
> -= This is automatically added to each message by mailing script =-
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> Ftp: ftp.ccl.net  |  WWW: http://www.ccl.net/chemistry/   | Jan: jkl@ccl.net



--

  Dr Mark J Forster Ph.D.
  Principal Scientist
  Informatics Laboratory
  National Institute for Biological Standards and Control
  Blanche Lane, South Mimms,
  Hertfordshire EN6 3QG, United Kingdom.

  Tel  +44 (0)1707 654753
  FAX  +44 (0)1707 646730
  E-mail  mforster@nibsc.ac.uk




From chemistry-request@server.ccl.net  Thu Jun  1 09:22:54 2000
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From: "Elena Fioravanzo" <s.in-support@mclink.it>
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Cc: <ad@fb13n.uni-paderborn.de>, <ryszard@arqule.com>, <ishida@taiho.co.jp>,
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Subject: Summary: Molecular Diversity - 2
Date: Thu, 1 Jun 2000 14:54:35 +0200
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Dear CCL members,

Please find my original question and replies (new and old ones).
Thanks a lot to collegues who contributed.

=================
there are many methods and indices to estimate molecular similarity, but it
is quite difficult to estimate-calculate molecular diversity.
Could someone give me, please, references (articles, web-site, softwares)
about this point?
=================

A >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
These are other articles you might find useful:

1) "Measuring Molecular Diversity: Evaluation of Alternative Subsets
Selected from Reagent Building Block Libraries for Combinatorial Chemistry."
Blankley, C. J., Pharm. Pharmacol. Commun. 1998, 4, pages 139-146

2) "The Diversity Challenge in Combinatorial Chemistry." Kauvar, L. M. and
Laborde, E., Drug Discovery and Development 1998, 1, pages 66-70

3) "Validated Descriptors for Diversity Measurements and Optimization."
Martin, Y. C., Bures, M. G. and Brown, R. D., Pharm. Pharmacol. Commun.
1998, 4, pages 147-152

4) "Assesing Similarity and Diversity of Combinatorial Libraries by Spatial
Autocorrelation Functions and Neural Networks." Sadowski, J., Wagener, M.
and Gasteiger, J., Angew. Chem. Int. Ed. Engl. 1995, 34, pages 2674-2677

5) "Novel Software Tools for Addressing Chemical Diversity" R. S. Pearlman,
Laboratory for Molecular Graphics and Theoretical Modeling, College of
Pharmacy, University of Texas (From June/July, 1996). You can read this
article on line at http://www.netsci.org/Science/Combichem/feature08.html

6) "Computational methods in molecular diversity and combinatorial
chemistry." Bures, M.G., and Martin, Y.C., Curr. Opin. Chem. Biol. 1998, 2,
pages 376-380

7) "Targeted molecular diversity in drug discovery: Integration of
structure-based design and combinatorial chemistry."  Li, J., Murray, C.W.,
Waszkowycz, B., and Young, S.C., Drug Discovery Today 1998, 3, pages 105-112

I hope this helps.

Guillermo Morales
-----
Guillermo A. Morales
Morales Consulting
E-mail: morales@combichemlab.com
Website: http://www.combichemlab.com
Member of the Combi-Web Consortium: http://www.combi-web.com

B >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Dear Elena,

We have written three very extensive reviews on the subject. Note that the
last one
is still in press. Hope that helps.
1.        D. K. Agrafiotis*, "Diversity of chemical libraries", in The
Encyclopedia of Computational Chemistry; Schleyer, P.v.R.; Allinger, N. L.;
Clark, T.; Gasteiger, J.; Kollman, P. A.; Schaefer III, H. F.; Schreiner, P.
R., Eds., John Wiley and Sons, Chichester, 1998, Vol. 1, 742-761.

2.        D. K. Agrafiotis*, J. P. Myslik, and F. R. Salemme, "Advances in
diversity profiling and combinatorial series design", in Annual Reports in
Combinatorial Chemistry and Molecular Diversity, Pavia, M., and Moos, W.,
Eds., Kluwer, 1999, 2, 71-92.

3.        D. K. Agrafiotis*, V. S. Lobanov, D. N. Rassokhin, and S.
Izrailev, "The measurement of molecular diversity", in Virtual Screening of
Bioactive Molecules, H.-J. Böhm, H.-J., and Schneider, G., Eds., Wiley-VCH,
Weinheim, in press.
---
Dimitris K. Agrafiotis, PhD              | E-mail: dimitris@3dp.com
3-Dimensional Pharmaceuticals, Inc.      | Tel:    (610) 458-6045
665 Stockton Drive, Suite 104            | Fax:    (610) 458-8249
Exton, PA 19341

C >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Hi Elena,

I wrote a little program which helps you to select a maximally diverse
subset of compounds from a large set of compounds, based on any number of
numerical descriptors you have available.  The program is based on
maximizing the mean nearest neighbor distance in multidimensional parameter
space.  You have to provide an input file with all the descriptors for all
the compounds in your set.  The program first normalizes all the data (so
that molecular weight doesn't overwhelm logP, for example).  Then it
selects random subsets, evaluates their similarity (using mean nearest
neighbor distance), and uses a genetic algorithm to select better and
better subsets.

* D. Eric Walters, Ph.D., Associate Professor, Biochemistry & Molecular
Biology
* Finch University of Health Sciences/The Chicago Medical School
* 3333 Green Bay Road, North Chicago, IL  60064
* ph 847-578-8613;fax 847-578-3240; email: Eric.Walters@finchcms.edu
* "A man would do nothing if he waited until he could do it so well that
*  no one would find fault with what he had done." --Cardinal Newman
* * * visit my web page! http://www.finchcms.edu/biochem/walters.html * * *

D>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Dear Elena,

Here are two of our papers, which include a number of useful references:

1- Molecular diversity and its analysis.
D. Gorse, A. Rees, M. Kaczorek and R. Lahana
Drug Discovery Today, Vol.4 No. 6,  June 1999.

2- Functional diversity of compound libraries.
D. Gorse and R. Lahana
Current Opinion in Chemical Biology, Vol.4 No.3, June 2000.

Hope it helps,

Roger

****************************************************************
Dr Roger Lahana                                          Synt:em
Vice-President R&D                     Parc Scientifique G.Besse
Computational Drug Discovery                         30000 Nimes
email: rlahana@syntem.eerie.fr                            France
Tel: +33 (0)466 048 668 (Direct)         Fax: +33 (0)466 048 667
****************************************************************
            Discover New Drugs, Discover Synt:em
                   http://www.syntem.com
****************************************************************

E >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
While by no means complete, here is a list that could get you started.

1.      Van Drie, J. H., Lajiness, M. S. 1998. Approaches to virtual library
design. DDT 3:274-83
2.      Pearlman, R. S., Smith, K. M. 1998. Software for chemical diversity
in the context of accelerated drug discovery. Drugs of the Future 23:885-95
3.      Hassan, M., Bielawski, J. P., Hempel, J. C., Waldman, M. 1996.
Optimization and visualization of molecular diversity of combinatorial
libraries. Molecular Diversity 2:64-74
4.      Jamois, E. A., Hassan, M., Waldman, M. 1999. Evaluation of
Reagent-Based and Product-Based Strategies in the Design of Combinatorial
Library Subsets. J. Chem. Inf. Comput. Sci. 40:63-70
--
Jeffrey L. Nauss, PhD           Phone: (858) 799-5555
Customer Training Programs      Fax: (858) 458-0136
Molecular Simulations Inc.      E-mail: jnauss@msi.com
9685 Scranton Road              http://www.msi.com/about/events/training
San Diego, CA 92121-3752

F >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Go to http://cisrg.shef.ac.uk and look under Recent Work for the program
SELECT and accompanying references.
Nick (lip97nej@sheffield.ac.uk)

G >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Molecular Diversity:
http://www.phar.cam.ac.uk/DDG/
Try our site and my supervisor's new book "Molecular Diversity in Drug
Design (1999)" Contact him  P.M.Dean@ddg.phar.cam.ac.uk if and he might be
able to help. Quantitaive approaches depend on small molecule or binding
site diversity. Texts on QSAR might help.

James Smith
_________________________________________________________________________

 James Smith       Drug Design Group             01223 338 600 (College)
 St John's College Department of Pharmacology    01223 331 985 (Office)
 Cambridge         University of Cambridge       01223 331 740 (Fax)
 CB2 1TP           CB2 1QJ                       07625 395 084 (Pager)
 United Kingdom    United Kingdom              js252@cam.ac.uk
  http://www.cus.cam.ac.uk/~js252
_________________________________________________________________________

H >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I suggest you to contact Dr. Antonio Jerez, at UNED Madrid:
 ajerez@ccia.uned.es

*****************
Julio César Llópiz Yurell
IMRE, UH
Zapata y G, Habana 10400, CUBA
Tel (537) 781182  Fax (537) 334247

====================================================================
---------------------------------------------------------
dott. Elena Fioravanzo - Consultant
S.IN - Soluzioni Informatiche S.a.s.
Via Salvemini 9
I-36100 Vicenza
Italy - Europe

Voice   ++39 0444 240341
Mobile  ++39 0347 4054991
Fax      ++39 0444 533954
E-mail  s.in-support@mclink.it
Web     http://www.goldnet.it/sin/





From chemistry-request@server.ccl.net  Thu Jun  1 15:33:21 2000
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Date: 1 Jun 2000 14:46:41 -0500
From: "Boyd" <boyd@chem.iupui.edu>
Subject: re: similarity/diversity
To: "Fioravanzo, Elena" <s.in-support@mclink.it>,
        "OSC CCL" <chemistry@ccl.net>
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Hi Elena and CCLers,

Your compilation of references on molecular similarity/diversity has 
many articles dating from 1998 and 1999.  More recent work will be 
published in a special double issue of the Journal of Molecular 
Graphics and Modelling.  This journal is published in affiliation with 
the American Chemical Society's Computers in Chemistry division.

The special issue on combinatorial library design will be released this 
summer.  To see a list of the articles it will include, check out our 
website, http://chem.iupui.edu/~boyd/jmgm.html

Thanks, Don

Donald B. Boyd, Ph.D.
Editor, Journal of Molecular Graphics and Modelling
Editor, Reviews in Computational Chemistry
Department of Chemistry
Indiana University-Purdue University at Indianapolis
402 North Blackford Street
Indianapolis, Indiana 46202-3274, U.S.A.
E-mail boyd@chem.iupui.edu
WWW http://chem.iupui.edu/

From chemistry-request@server.ccl.net  Thu Jun  1 14:04:46 2000
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Message-ID: <3936A590.47E7D53@engr.uconn.edu>
Date: Thu, 01 Jun 2000 14:04:00 -0400
From: Yuqiang Huang <yuqiangh@engr.uconn.edu>
Organization: CAPPD_LAB
To: chemistry@ccl.net
Subject: Ask for kind help from one guy at Uconn.


Dear Friends:

I am one new Ph.D. candidate in the Dept. of Chemical Engineering at
University of Connecticut. My project is "Molecular-Level Simulations of
Reverse Micelles in Supercritical Carbon Dioxide for Solvent
Substitution in the Chemical Industries " (designing the Surfactants for
containing more water in the microemulsions to produce nanomaterials and
developing a molecular-level understanding of the formation and
stability of reverse micelles in supercritical carbon dioxide are two of
our main points).

Whould you please give me some advice about which method (such as
Molecular Dynamics simulations, Monte Carlo simulations, Thermodynamic
Approaches, or any other method) is good to be used fro my project? Is
there any software packcage for that method and how to get it?

I am expecting for your response. Your any advice is greatly
appreciated!

Best wishes to you,

--
Yuqiang Huang
==================================
Department of Chemical Engineering
University of Connecticut
191 Auditorium Road, U-222
Storrs, CT 06269-3222 USA

E-mail: yuqiangh@engr.uconn.edu
Phone(Office):   (860) 486-4600
Fax(Department): (860) 486-2959
==================================


From chemistry-request@server.ccl.net  Thu Jun  1 18:15:50 2000
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From: Schrodinger Info account <info@canter-n-siegel.schrodinger.com>
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Subject: ANNC: Seminar on ADME Property Prediction for Real-World Problems
To: chemistry@ccl.net
Date: Thu, 1 Jun 2000 15:03:38 -0700 (PDT)
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Schrodinger, Inc. is pleased to announce two seminars describing our
state-of-the-art tools for accurate ADME property prediction to be
held on the East Coast in June.

Prediction of absorption, distribution, metabolism, and excretion
(ADME) properties, such as logPo/w, logS, Caco-2, and logBB, is
becoming increasingly important in the process of selecting drug
candidates for binding in a receptor binding pocket.  Acidity and
basicity can have profound effects upon chemical and physical
properties. In the drug discovery process, pKa estimation plays an
important role in predicting ADME properties of medicinal compounds.

The seminar will illustrate key synergies among Schrodinger's software
products.  The first-principles based pKa Predictor in Jaguar was
developed to provide accurate predictions of pKa while explicitly
addressing conformational effects.  A new property prediction program,
QikProp (developed by Bill Jorgensen, Yale University), has both the
speed and the accuracy to efficiently predict values for physically
significant descriptors and pharmaceutically relevant properties of
neutral organic molecules.

    Wednesday, June 14, 2000
    9:30AM - 3:30 PM
    MIT - Cambridge, MA

    Thursday, June 22, 2000
    9:30AM - 3:30 PM
    SGI - Parsippany, NJ

If you have any questions or comments, or to register, please see our
website at http://www.schrodinger.com, or contact Sharmila Pai (email:
shams@schrodinger.com, phone: +1 508 628-1975).


From chemistry-request@server.ccl.net  Thu Jun  1 22:00:21 2000
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Message-ID: <3937069F.82960802@iris.sipp.ac.cn>
Date: Fri, 02 Jun 2000 09:58:07 +0900
From: Mao Xiang <xmao@iris.sipp.ac.cn>
Organization: iris.sipp.ac.cn
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Subject: thermal stability
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Hello,everyone:
   I have an enzyme which I cut about ten amino acids from the wild
type, and I found that the thermal stability decrease, and that means
the catalytic reaction can process under the low temperature. I want to
do some molecule modeling on this enzyme, does anyone have some
suggetion about what I should do. Thanks in advance.


Regards,
mao xiang

  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|  Xiang Mao                                                     |
|  Lab of Molecular Regulation for Microbial Secondary Metabolism |
|  Shanghai institute of Plant Physiology, Academia Sinica        |
|  300 Fenglin Road, Shanghai, China, 200032                      |
|  Tel: +86-21-64042090-4791                                      |
|  Fax: +86-21-64042385                                           |
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

From chemistry-request@server.ccl.net  Thu Jun  1 23:17:25 2000
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Date: Fri, 02 Jun 2000 12:17:57 +0900
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Dear all

I have been trying to run molecular dynamics and got some trajectory
files. (*.his)
Unfortunately I don't have some analysis programs for MD.

I want to know or get programs that have follow tools.

1) populations vs. dihedral angles (or energy)
2) ramandranchandran plot or phi,psi map
3) Calculate for RDF or MSD

Please tell me some helps.

Best regards...


--
*****************************************
  Jee-Young  Lee
  The Catholic University of  Korea
  Department of Chemistry
  Ph.D candidate
  Tel. +82-32-3403-674
*****************************************




