BioChem Press Internet Electronic Journal of Molecular Design 2005, 4, 000–000 ISSN 1538–6414 http://www.biochempress.com IMPORTANT: This template file, IEJMD_template.doc, must be used to prepare papers submitted for publication in the Internet Electronic Journal of Molecular Design or the Internet Electronic Conference of Molecular Design. Type or paste your text, tables or figures in the appropriate sections of this file. If you need more sections with a specific style (different headings, text, table, figure, etc.), just copy and paste the existing sections. Alternatively, you can create a new paragraph with a specific style by pressing ENTER at the end of an existing paragraph with that style. Then you can cut-and-paste the new paragraph in its proper place. For more examples on preparing http://www.biochempress.com. the manuscript, download recent papers from All figures and pictures must be IN LINE WITH TEXT: mouse right click on the picture, select the figure and then from the menu select Format picture/Layout/In line with text. The Title of the Manuscript Should be Written in Bold, Size 18 pt, Centered, with the First Letter of Each Main Word Capitalized First Author,1,* Second Author,2 Third Author,3 and Fourth Author2 1 2 Address for First Author Address for Second Author and Fourth Author 3 Address for Third Author Internet Electron. J. Mol. Des. 2005, 4, 000–000 Abstract Motivation. Write the abstract of the manuscript using the font Times New Roman size 10. The abstract should present briefly and clearly, in less than 20 lines, the main goal and results of the investigation. The abstract should be independent of the main text, without equations, figures and references. Include all relevant phrases and key words that describe your research, because the title and abstract are the main source of bibliographical information; a missing key word from the abstract can make a paper hard to find from bibliographical databases. In the Motivation section explain the importance of the problem investigated in the paper. Method. Give a short account of the most important methods used in your investigation. Results. Present the main results reported in the paper. Conclusions. Briefly present the conclusions and importance of the results. Availability. If the original software used in the investigation is available for distribution, give here the Internet address. Keywords. Write here up to six keywords relevant for the research presented in the manuscript. Cyclodextrin; molecular mechanics; PM3. Abbreviations and notations Collect here in alphabetical order all abbreviations and ANN, artificial neural network CC, combinatorial chemistry notations used in the paper PLS, partial least squares QSAR, quantitative structure-activity relationships * Correspondence author; phone: 00-000-000-000; fax: 00-000-000-000; E-mail: author@uni.edu Copyright © 2005 BioChem Press Authors Internet Electronic Journal of Molecular Design 2005, 4, 000–000 CL, combinatorial library GA, genetic algorithm QSPR, quantitative structure-property relationships 1 INTRODUCTION Use this Word template to prepare the manuscript by closely following the instructions for authors included here. The entire manuscript, including mathematical equations, chemical structures, tables, and figures must be prepared in electronic form and submitted as Word for Windows files. Use only fonts that come with Windows software. For the text use Times New Roman size 12. For all special characters (e.g., Greek characters) use the font Symbol. Use carriage returns only to end headings and paragraphs, not to break lines of text. Automatic hyphenation should be turned off. Do not insert spaces before punctuation. Verify the correct spelling for the final version with the Spelling and Grammar function of Word. Primary headings are numbered, font size 14, centered, bold, and with all letters capitalized. The headings from this template are In the Introduction section present clearly and briefly the problem investigated, with relevant references. The main results should be enunciated. 2 MATERIALS AND METHODS Descriptions of chemical compounds, chemical databases, software, and algorithms should be given in detail to enable qualified scientists to reproduce the results. Simple mathematical notations and equations must be inserted as Word text, using Times New Roman and Symbol fonts, and the appropriate style (italics or bold). For example: Uij, y2. All complex mathematical equations must be prepared with the equation editor from Word and placed in the proper place. Example: N N W (G) = Dij (G) (1) 1 / [Dp ]ij if i j [RDp ]ij if i j 0 (2) i 1 j i HyWi(M, w, G) = 1 N N [M( w)]ij 2 [M( w)]ij 2 i 1 j i (3) 1 BioChem Press http://www.biochempress.com Running title Internet Electronic Journal of Molecular Design 2005, 4, 000–000 d ( w) ijp val( w) iq val( w) rj if i j [Dval( p, q, r , w)]ij q r if i j Vw( w) i val( w) i (4) The equations are labeled in the order in which they appear in the text with Arabic numbers in parentheses aligned to the left margin. In writing the equations use the following rules: vectors and matrices with bold, functions such as log, sin, cos normal, and all other mathematical symbols with italic. 2.1 Chemical Data Secondary headings are numbered, font size 14, centered, bold, and with the first letter of each main word capitalized. Papers presenting QSPR or QSAR models must present in tables all compounds studied, structural descriptors and the experimental, calculated and residual values for the physical, chemical, or biological property. Complete information regarding the sources of experimental data should be provided. Compounds that are not included in the final structure-property model must be identified and explanations must be provided for their removal. Clustering and intercorrelation of structural descriptors should be investigated. Comprehensive statistical data must be presented. All QSPR and QSAR models must be tested with a cross-validation method. The molecular files for all compounds must be deposited as an archive in the supplementary material. This can help other researchers to verify the QSPR and QSAR models. All chemical structures should be prepared with a suitable graphics program, such as: ISIS/Draw from MDL Information Systems, http://www.mdli.com/ ACD/ChemSketch from Advanced Chemistry Development, http://www.acdlabs.com/ ChemWindow from SoftShell, http://www.softshell.com/ ChemDraw from CambridgeSoft, http://www.camsoft.com/ Use the following settings for chemical drawings: text font text size standard bond/grid length line width stereo bond width double/triple bond spacing down bond hashes Times New Roman 10 pt 16 pt 0.7 pt 2.0 pt 20% of width 2.5 pt All compounds must be labeled with Arabic numbers, with font Times New Roman, size 10, bold. 2 BioChem Press http://www.biochempress.com Authors Internet Electronic Journal of Molecular Design 2005, 4, 000–000 2.2 Computer Software Secondary headings are numbered, font size 14, centered, bold, and with the first letter of each main word capitalized. 2.2.1 Quantum chemistry software Tertiary headings are numbered, font size 12, centered, bold, and with the first letter of the heading capitalized. 2.2.2 Neural network software Tertiary headings are numbered, font size 12, centered, bold, and with the first letter of the heading capitalized. 2.3 Clustering Algorithms Secondary headings are numbered, font size 14, centered, bold, and with the first letter of each main word capitalized. 3 RESULTS AND DISCUSSION A clear presentation of all new results should be given, followed by a discussion of their significance and relationships with previous knowledge in the field. No 1 2 3 4 5 6 7 8 9 10 a0 -1.894 -1.995 -1.934 -2.161 -2.039 -2.022 -2.277 -2.765 -2.149 -2.051 a1 4.313 4.151 4.323 4.502 4.159 4.540 5.026 4.147 4.356 4.437 a2 0.014 0.014 0.015 0.012 0.016 0.013 0.014 0.009 0.013 0.014 Table 1. Example a3 a4 a5 0.510 0.178 -10.045 0.489 -1.473 -10.621 8.037 -11.639 0.161 7.231 -12.742 0.124 8.010 -12.131 -1.405 0.636 0.261 5.380 0.619 0.172 -2.108 0.366 -13.808 0.731 0.580 0.188 -2.091 0.567 0.151 -12.007 r 0.919 0.917 0.916 0.916 0.916 0.916 0.915 0.915 0.915 0.915 s 0.516 0.522 0.523 0.525 0.526 0.526 0.526 0.526 0.526 0.527 F 394 383 382 378 377 376 376 376 376 374 Table 1. An empty table. To add a column, select a column and then select from the top menu line: Table/Insert/Columns to the Left or Table/Insert/Columns to the Right. To add a row, select a row and then select from the top menu line: Table/Insert/Rows above or Table/Insert/Rows below. Column 1 Column 2 Column 3 Column 4 Column 5 Column 6 Column 7 Column 8 3 BioChem Press http://www.biochempress.com Running title Internet Electronic Journal of Molecular Design 2005, 4, 000–000 1 2 3 Figure 1. Example. All figures and pictures must be IN LINE WITH TEXT: mouse right click on the picture, Format picture/Layout/In line with text. 4 PRESENTATION OF QSAR MODELS The biological data must be presented in detail, with special attention for the following aspects: description of the biological data; how the experimental data were obtained; units for experimental data from the original publication; references. Previous QSAR studies developed for the same datasets must be referenced, described (including statistical indices), and compared with the results from the paper. The experimental data must be presented in a table in exactly the same format as published in the original paper. Consider the following situation: in the original paper the biological activity was IC50 expressed in units of µg/ml; these values must be reported in a table. In the same table one must report also IC50 expressed in units of mol/l, as well as pIC50 = log1/IC50 = -logIC50. The computation of pIC50 = log1/IC50 = -logIC50 is presented below: Step 1. transform IC50 from µg/ml to mol/l Step 2. consider a value of 3.1 µmol/l = 3.1×10-6 mol/l Step 3. compute pIC50 = -log IC50 = - (log 3.1×10-6) = - ( -5.51) = 5.51 Chemical compounds must be denoted by numbers in bold: No 1 2 3 4 5 6 R H H H 6–F 6–CF3 6–OCH3 R' H 4–Cl 4–OCH3 H H H R' 0 0.23 –0.27 0 0 0 MRR8 0.103 0.103 0.103 0.103 0.103 0.103 LR'4' 2.06 3.52 3.98 2.06 2.06 2.06 I 0 0 0 0 0 0 B5R 1 1 1 1.35 3.07 1 log 1/IC50 9.35 9.00 9.17 8.16 5.73 5.66 4 BioChem Press http://www.biochempress.com Authors Internet Electronic Journal of Molecular Design 2005, 4, 000–000 8–F 8–F 8–F 8–F 7 8 9 10 H 3–NH2 4–OCH3 4–OH 0 –0.16 –0.27 –0.37 0.092 0.092 0.092 0.092 2.06 2.06 3.98 2.74 0 0 0 0 1 1 1 1 9.54 9.26 9.48 9.34 Typically, classical QSAR models must be reported as in the following example: n = 18 pIC50 = 2.528 (0.509) + 2.791 (0.426) Sav1 0.441 (0.235) pA R = 0.864 %EV = 74.582 R2A = 0.712 F(2,15) = 22.007 p<0.001 SEE = 0.259 PRESS = 1.328 SSY = 2.980 R2CV = 0.554 SPRESS = 0.298 PSE = 0.272 (5) All QSAR models must be cross-validated, using a k-fold cross-validation technique (usual values for k are between 10 and 4, but lower values can be used). 5 CONCLUSIONS The main results should be presented clearly and briefly, insisting on their significance and degree of novelty. Acknowledgment The authors acknowledge the financial of this research by the XYZ Foundation. Use font Times New Roman size 10. Supplementary Material The molecular files for all compounds used in QSPR and QSAR models, must be deposited as an archive in the supplementary material. Extensive numerical results from molecular mechanics, quantum mechanics, or molecular dynamics computations can be deposited as supplementary material. Molecular files containing the geometry of important chemical species must be deposited as an archive in the supplementary material. Use font Times New Roman size 10. Appendix 1 Write here the text for Appendix; delete this section if it does not apply. Use font Times New Roman size 10. 6 REFERENCES [1] [2] [3] [4] Do not delete this template. Replace the examples presented here with your references. For the REFERENCES section use the Bibliography style. References are presented as a numbered list. Use font Times New Roman size 10. Substitute the references presented here as examples with your own references. To create a new numbered reference press ENTER at the end of an existing reference. You can delete a reference, or insert a new one. Follow the examples presented below for journal papers with one, two, or more authors, books, edited books, chapters in a book. H. Kubinyi, Variable Selection in QSAR Studies. I. An Evolutionary Algorithm, Quant. Struct.-Act. Relat. 1994, 13, 285-294. M. V. Diudea, Cluj Matrix Invariants, J. Chem. Inf. Comput. Sci. 1997, 37, 300-305. J. G. Topliss and R. P. Edwards, Chance Factors in Studies of Quantitative Structure-Activity Relationships, J. 5 BioChem Press http://www.biochempress.com Running title Internet Electronic Journal of Molecular Design 2005, 4, 000–000 [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] Med. Chem. 1979, 22, 1238-1244. R. P. Sheridan and S. K. Kearsley, Using a Genetic Algorithm to Suggest Combinatorial Libraries, J. Chem. Inf. Comput. Sci. 1995, 35, 310-320 J. Sadowski and H. Kubinyi, A Scoring Scheme for Discriminating between Drugs and Nondrugs, J. Med. Chem. 1998, 41, 3325-3329. W. Zheng, S. J. Cho, and A. Tropsha, Rational Design of a Targeted Combinatorial Chemical Library with Opiatelike Activity, Int. J. Quantum Chem. 1998, 69, 65-75. S. H. Yalkowsky, J. F. Krzyzaniak and P. B. Myrdal, Relationships between Melting Point and Boiling Point of Organic Compounds, Ind. Eng. Chem. Res. 1994, 33, 1872-1877. M. J. S. Dewar, E. G. Zoebisch, E. F. Healy and J. J. P. Stewart, AM1: A New General Purpose Quantum Mechanical Molecular Model, J. Am. Chem. Soc. 1985, 107, 3902-3909. M. A. Gallop, R. W. Barrett, W. J. Dower, S. P. A. Fodor, and E. M. Gordon, Application of Combinatorial Technologies to Drug Discovery. 1. Background and Peptide Combinatorial Libraries, J. Med. Chem. 1994, 37, 1233-1251. L. B. Kier and L. H. Hall, Molecular Connectivity in Structure-Activity Analysis, Research Studies Press, Letchworth, 1986, pp. 20-25. A. T. Balaban (Ed.), From Chemical Topology to Three-Dimensional Geometry, Plenum, New York, 1997. M. V. Diudea (Ed.), QSPR/QSAR Studies by Molecular Descriptors, Nova Science, Huntington, N.Y., 2001. H. Kubinyi, Comparative molecular field analysis (CoMFA); in: The Encyclopedia of Computational Chemistry, Eds. P. v. R. Schleyer, N. L. Allinger, T. Clark, J. Gasteiger, P. A. Kollman, H. F. Schaefer III, and P. R. Schreiner, John Wiley & Sons, Chichester, 1998, pp. 448-460. S. C. Basak, Information Theoretic Indices of Neighborhood Complexity and Their Applications; in: Topological Indices and Related Descriptors in QSAR and QSPR, Eds. J. Devillers and A. T. Balaban, Gordon and Breach Science Publishers, Amsterdam, 1999, pp 563-593. Biographies First Author is assistant professor of medicinal chemistry at the University of XXXX. After obtaining a Ph.D. degree in inorganic chemistry and mathematical modeling of ZZZ from the University of XXXX, Dr. YYY undertook postdoctoral research with Professor ZZZ at the University of ZZZZ. More recently, Dr. YYY has collaborated on projects with Professor XXX. You can include also: major research projects, scientific accomplishments, extracurricular activities. Second Author is computational chemist at … Each author can insert here a short biography. Use font Times New Roman size 10. 6 BioChem Press http://www.biochempress.com