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            <front>

                <journal-meta>
                                    <journal-id></journal-id>
            <journal-title-group>
                                                                                    <journal-title>Erciyes Üniversitesi Fen Bilimleri Enstitüsü Fen Bilimleri Dergisi</journal-title>
            </journal-title-group>
                            <issn pub-type="ppub">1012-2354</issn>
                                                                                                        <publisher>
                    <publisher-name>Erciyes Üniversitesi</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id/>
                                                                                                                                                                                            <title-group>
                                                                                                                        <article-title>Proteomic analysis of HIV-1 protease specificity with a new feature encoding method</article-title>
                                                                                                                                                                                                <trans-title-group xml:lang="tr">
                                    <trans-title>HIV-1 Proteaz Özgünlüğünün Yeni Bir Öznitelik Temsili Yöntemi ile Proteomik Analizi</trans-title>
                                </trans-title-group>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                <name>
                                    <surname>Gök</surname>
                                    <given-names>Murat</given-names>
                                </name>
                                                                    <aff>Department of Computer Engineering, Yalova University</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Özcerit</surname>
                                    <given-names>Ahmet Turan</given-names>
                                </name>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20120201">
                    <day>02</day>
                    <month>01</month>
                    <year>2012</year>
                </pub-date>
                                        <volume>28</volume>
                                        <issue>1</issue>
                                        <fpage>23</fpage>
                                        <lpage>28</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20120201">
                        <day>02</day>
                        <month>01</month>
                        <year>2012</year>
                    </date>
                                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 1985, Erciyes Üniversitesi Fen Bilimleri Enstitüsü Fen Bilimleri Dergisi</copyright-statement>
                    <copyright-year>1985</copyright-year>
                    <copyright-holder>Erciyes Üniversitesi Fen Bilimleri Enstitüsü Fen Bilimleri Dergisi</copyright-holder>
                </permissions>
            
                                                                                                <abstract><p>In this study a new feature encoding scheme named FTKY (Physicochemical Based Encoding Method) has been developed for HIV-1 protease site prediction. FTKY has been tested according to selected best 10-pc(physicochemical), 20-pc, 30-pc, 40-pc and 50-pc by means of accuracy, specificity and AUROC (Area Under Receiver Operating Charecteristic Curve) on Linear Support Vector Machines. Tests have been conducted on two up-to-date HIV-1 protease datasets, PR-1625 and PR-3265. According to empirical results, FTKY has been performed better prediction of accuracy 95.21 % on PR-1625 according to best 10-pc and accuracy 94.37 % when using PR-3261 according to best 30-pc on a standalone classifier.</p></abstract>
                                                                                                                                    <trans-abstract xml:lang="tr">
                            <p>Bu çalışmada HIV-1 proteaz enzimi bölünme kısımlarının tahmini için Fizikokimyasal Tabanlı Kodlama Yöntemi (FTKY) adı verilen yeni bir öznitelik kodlama yöntemi uygulandı. FTKY, seçilen en iyi 10-fk (fizikokimyasal), 20-fk, 30-fk, 40-fk ve 50-fk özelliğe göre sınıf doğruluğu, duyarlık ve Alıcı İşletim Karakteristiği Eğrisi Altında Kalan Alan (AİKAA) değerleri bakımından Doğrusal Destek Vektör Makineleri (DDVM) yöntemi kullanılarak test edilmiştir. Testlerde güncel iki HIV-1 proteaz veri seti, PR-1625 ve PR-3261 kullanılmıştır. Elde edilen deneysel sonuçlara göre 10-fk’ya göre yapılan kodlamalarda, PR-1625 veri seti üzerinde en yüksek performans elde edilirken PR-3261’de ise en düşük performans elde edilmiştir. Elde edilen deneysel sonuçlara göre FTKY, tek sınıflandırıcı üzerinde PR-1625 üzerinde en yüksek sınıf doğruluğunu % 95,21 ile en iyi 10-fk, PR-3261 üzerinde ise % 94,37 sınıf doğruluğu ile en iyi 30-fk vermiştir.</p></trans-abstract>
                                                            
            
                                                            <kwd-group>
                                                    <kwd>HIV-1 Protease Specificity</kwd>
                                                    <kwd>   Feature Representation</kwd>
                                                    <kwd>   Peptide Classification</kwd>
                                            </kwd-group>
                                                        
                                                                            <kwd-group xml:lang="tr">
                                                    <kwd>HIV-1 Proteaz Özgünlüğü</kwd>
                                                    <kwd>   Öznitelik Temsili</kwd>
                                                    <kwd>   Peptit Sınıflandırma</kwd>
                                            </kwd-group>
                                                                                                            </article-meta>
    </front>
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                            <ref-list>
                                    <ref id="ref1">
                        <label>1</label>
                        <mixed-citation publication-type="journal">Beck Z.Q., Hervio L, Dawson P.E., Elder J.H., Madison E.L., Identification of efficiently cleaved substrates for HIV-1 protease using a phage display library and use in in inhibitor development. Virology 274 (2): 391-401, 2000.</mixed-citation>
                    </ref>
                                    <ref id="ref2">
                        <label>2</label>
                        <mixed-citation publication-type="journal">Graves, B.J., Hatada, M.H., Miller, J. K., Graves, M.C., Roy, S., Cook, C.M., Krohn, A., Martin, J.A., Roberts, N.A., In Structure and Function of the Aspartic Protease: Genetics, Structure and Mechanisms. Dunn, B., Ed. Plenum: New York; p. 455, 1992.</mixed-citation>
                    </ref>
                                    <ref id="ref3">
                        <label>3</label>
                        <mixed-citation publication-type="journal">Kuo-Chen Chou, Prediction of Human Immunodeficiency Virus Protease Cleavage Sites in Proteins, Analytical Biochemistry. 233, 1-14, 1996.</mixed-citation>
                    </ref>
                                    <ref id="ref4">
                        <label>4</label>
                        <mixed-citation publication-type="journal">[4] Cai Y.D., Chou K.C., Artificial neural network model for predicting HIV protease cleavage sites in protein. Adv Eng Software, 29: 119-128, 1998.</mixed-citation>
                    </ref>
                                    <ref id="ref5">
                        <label>5</label>
                        <mixed-citation publication-type="journal">Rögnvaldsson, T., You, L., Why neural networks should not be used for HIV-1 protease cleavage site prediction. Bioinformatics, 1702-1709, 2003.</mixed-citation>
                    </ref>
                                    <ref id="ref6">
                        <label>6</label>
                        <mixed-citation publication-type="journal">Nanni L, Lumini A., MppS: an ensemble of Support Vector Machine based on multiple physicochemical properties of amino-acids. Neuro Computing, 69: 1688-1690, 2006.</mixed-citation>
                    </ref>
                                    <ref id="ref7">
                        <label>7</label>
                        <mixed-citation publication-type="journal">Carlotta Orsenigo, Carlo Vercellis, Predicting HIV Protease-Cleavable Peptides by Discrete Support Vector Machines. Machine Learning and Data Mining in Bioinformatics, 197-206, 2007.</mixed-citation>
                    </ref>
                                    <ref id="ref8">
                        <label>8</label>
                        <mixed-citation publication-type="journal">Kawashima, S., Kanehisa, M., AAindex: amino acid index database, Nucleic Acids Res. 20 (1): 374, 2000. (www.genome.jp/aaindex/)</mixed-citation>
                    </ref>
                                    <ref id="ref9">
                        <label>9</label>
                        <mixed-citation publication-type="journal">Schechter, I., Berger, A. 1967. On the size of the active site in proteases. Biochemical and Biophysical Research Commuications 27, 157-162, 1967.</mixed-citation>
                    </ref>
                                    <ref id="ref10">
                        <label>10</label>
                        <mixed-citation publication-type="journal">Kontijevskis, A., Wikberg, J.E., Computational proteomics analysis of HIV-1 protease interactome. Proteins-Structure Function and Bioinformatics 68(1): pp. 305-312, 2007.</mixed-citation>
                    </ref>
                                    <ref id="ref11">
                        <label>11</label>
                        <mixed-citation publication-type="journal">Schilling, O., Overall, C.M., Proteome-derived, database-searchable peptide libraries for identifying protease cleavage sites. Nat Biotechnol 26(6): pp. 685-694, 2008.</mixed-citation>
                    </ref>
                                    <ref id="ref12">
                        <label>12</label>
                        <mixed-citation publication-type="journal">Rognvaldsson, T., Etchells, T.A., How to find simple and accurate rules for viral protease cleavage specificities. BMC Bioinformatics 10: 149, 2009.</mixed-citation>
                    </ref>
                                    <ref id="ref13">
                        <label>13</label>
                        <mixed-citation publication-type="journal">Wang, L., Support Vector Machines: Theory and Applications, Springer, 2005.</mixed-citation>
                    </ref>
                                    <ref id="ref14">
                        <label>14</label>
                        <mixed-citation publication-type="journal">Gök M., Özcerit A.T., Linear Support Vector Machines for HIV-1 Protease Site Detection, ISSD&#039;09, Sarajevo, Bosnia Herzogovia, pp. 381-384, 2009.</mixed-citation>
                    </ref>
                                    <ref id="ref15">
                        <label>15</label>
                        <mixed-citation publication-type="journal">[15] Narayanan, A., Wu X., Yang, Z.R., Mining viral protease data to extract cleavage knowledge. bioinformatics, 18: suppl 1, pp. 5-13, 2002.</mixed-citation>
                    </ref>
                                    <ref id="ref16">
                        <label>16</label>
                        <mixed-citation publication-type="journal">Akdemir, B., Tahmin uygulamalarında performans geliştirmek için kullanılan normalizasyon metotlarına yeni bir yaklaşım. Doktora Tezi, Selçuk Üniversitesi, 2009.</mixed-citation>
                    </ref>
                                    <ref id="ref17">
                        <label>17</label>
                        <mixed-citation publication-type="journal">Jain A., Nandakumar K., Score normalization in multimodal biometric systems. Pattern Recognition, 38(12): pp. 2270-2285, 2005.</mixed-citation>
                    </ref>
                                    <ref id="ref18">
                        <label>18</label>
                        <mixed-citation publication-type="journal">Fawcett, T., ROC graphs: Notes and practical considerations for researchers. Technical Report, HP Laboratories. California, USA, 2004.</mixed-citation>
                    </ref>
                                    <ref id="ref19">
                        <label>19</label>
                        <mixed-citation publication-type="journal">Elmali, F., Altin Standarth ve Altin Standartsiz Durumlarda, Yari Parametrik ve Parametrik Olmayan ROC eğrisi yöntemlerinin karşılaştırılması. Osmangazi Üniversitesi, Sağlık Bilimleri Enstitüsü Doktora Tezi, 2009.</mixed-citation>
                    </ref>
                                    <ref id="ref20">
                        <label>20</label>
                        <mixed-citation publication-type="journal">Junshui, M.A., Y.I., Zhao., OSU SVM Toolbox for MATLAB, 2002. (http://sourceforge.net/projects/svm/)</mixed-citation>
                    </ref>
                                    <ref id="ref21">
                        <label>21</label>
                        <mixed-citation publication-type="journal">Duda, R.O., hart, P.E., Stork, D.G., Pattern Classification, 2nd edition. John Wiley &amp; Sons Inc, 2001.</mixed-citation>
                    </ref>
                            </ref-list>
                    </back>
    </article>
