<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2005000200001</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Mathematical properties of DNA sequences from coding and noncoding regions]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[José]]></surname>
<given-names><![CDATA[M.V.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,La Salle University Research Department Laboratory of Theoretic Biology]]></institution>
<addr-line><![CDATA[México D.F.]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Investigaciones Biomédicas ]]></institution>
<addr-line><![CDATA[México D.F.]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2005</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2005</year>
</pub-date>
<volume>51</volume>
<numero>2</numero>
<fpage>122</fpage>
<lpage>130</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2005000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2005000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2005000200001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Several nonlinear techniques have been applied to analyze DNA sequences. As a result, some mathematical properties that distinguish both coding and noncoding regions have emerged. We review and apply some of these techniques selecting some examples and comparing our results with previously published data. We also discuss the main controversies that have been raised in terms of the different taken approaches, particularly the presence or absence of long-range correlations in coding regions.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se han aplicado diversas técnicas no lineales para analizar secuencias de ADN. Como consecuencia, han surgido ciertas propiedades matemáticas que permiten distinguir a las secuencias codificantes de las no codificantes. En este artículo se revisan y aplican algunas de estas técnicas, seleccionando algunos ejemplos y comparando nuestros resultados con datos previamente publicados. Asimismo, se discuten las principales controversias que han surgido en términos de las diferentes estrategias metodológicas consideradas, en particular, se discute la presencia o ausencia de correlaciones a largo alcance en regiones codificantes.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Long-range correlations]]></kwd>
<kwd lng="en"><![CDATA[DNA mathematical analysis]]></kwd>
<kwd lng="en"><![CDATA[fractal dynamics]]></kwd>
<kwd lng="es"><![CDATA[Correlaciones a largo alcance]]></kwd>
<kwd lng="es"><![CDATA[análisis matemáticos]]></kwd>
<kwd lng="es"><![CDATA[DNA]]></kwd>
<kwd lng="es"><![CDATA[dinámica fractal]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Revisi&oacute;n</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="4"><b>Mathematical properties of DNA sequences from coding and noncoding regions</b></font></p>  	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="2"><b>J.A. Garc&iacute;a<sup>a,b,</sup>* and M.V. Jos&eacute;<sup>b</sup></b></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>a</sup>Laboratory of Theoretic Biology, Research Department, La Salle University, Benjam&iacute;n Franklin 47, Col. Condesa, M&eacute;xico, D.F. 06140, M&eacute;xico,</i></font></p>  	    <p align="justify"><font face="verdana" size="2"><sup><i>b</i></sup><i>Instituto de Investigaciones Biom&eacute;dicas, Universidad Nacional Aut&oacute;noma de M&eacute;xico, Apartado Postal 70228, Ciudad Universitaria, 04510 M&eacute;xico D.F. M&eacute;xico</i></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Recibido el 23 de septiembre de 2004;    <br> 	aceptado el 28 de enero de 2005</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>  	    <p align="justify"><font face="verdana" size="2">Several nonlinear techniques have been applied to analyze DNA sequences. As a result, some mathematical properties that distinguish both coding and noncoding regions have emerged. We review and apply some of these techniques selecting some examples and comparing our results with previously published data. We also discuss the main controversies that have been raised in terms of the different taken approaches, particularly the presence or absence of long&#45;range correlations in coding regions.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Long&#45;range correlations; DNA mathematical analysis; fractal dynamics.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>  	    <p align="justify"><font face="verdana" size="2">Se han aplicado diversas t&eacute;cnicas no lineales para analizar secuencias de ADN. Como consecuencia, han surgido ciertas propiedades matem&aacute;ticas que permiten distinguir a las secuencias codificantes de las no codificantes. En este art&iacute;culo se revisan y aplican algunas de estas t&eacute;cnicas, seleccionando algunos ejemplos y comparando nuestros resultados con datos previamente publicados. Asimismo, se discuten las principales controversias que han surgido en t&eacute;rminos de las diferentes estrategias metodol&oacute;gicas consideradas, en particular, se discute la presencia o ausencia de correlaciones a largo alcance en regiones codificantes.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Descriptores:</b> Correlaciones a largo alcance; an&aacute;lisis matem&aacute;ticos; DNA; din&aacute;mica fractal.</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2">PACS: 87.10.+e; 05.40.+j</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v51n2/v51n2a1.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Acknowledgments</b></font></p>  	    <p align="justify"><font face="verdana" size="2">We are very grearful to Julio Collado and Imelda Lopez for their valuable feed back and for reading the manuscript. M.VJ. was financially supported by PAPIIT&#45;IN205702, UNAM, M&eacute;xico.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Refereces</b></font>	</p> 	    <!-- ref --><p align="justify"><font face="verdana" size="2">1. A. Arneodo, E. Bacry, P.V. Graves, and J.F. Muzy, <i>Phys. Rev. Lett.</i> <b>74</b> (1995) 3293.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8308614&pid=S0035-001X200500020000100001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">2. D.G. Arqu&eacute;s and C.J. 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