Loots Gabriela G, Ovcharenko Ivan
Genome Biology Division, Lawrence Livermore National Laboratory, 7000 East Avenue, L-441 Livermore, CA 94550, USA.
Nucleic Acids Res. 2005 Jul 1;33(Web Server issue):W56-64. doi: 10.1093/nar/gki355.
Comparative genomics provides the means to demarcate functional regions in anonymous DNA sequences. The successful application of this method to identifying novel genes is currently shifting to deciphering the non-coding encryption of gene regulation across genomes. To facilitate the practical application of comparative sequence analysis to genetics and genomics, we have developed several analytical and visualization tools for the analysis of arbitrary sequences and whole genomes. These tools include two alignment tools, zPicture and Mulan; a phylogenetic shadowing tool, eShadow for identifying lineage- and species-specific functional elements; two evolutionary conserved transcription factor analysis tools, rVista and multiTF; a tool for extracting cis-regulatory modules governing the expression of co-regulated genes, Creme 2.0; and a dynamic portal to multiple vertebrate and invertebrate genome alignments, the ECR Browser. Here, we briefly describe each one of these tools and provide specific examples on their practical applications. All the tools are publicly available at the http://www.dcode.org/ website.
比较基因组学提供了在匿名DNA序列中划分功能区域的方法。该方法在鉴定新基因方面的成功应用目前正转向解读全基因组中基因调控的非编码加密信息。为了促进比较序列分析在遗传学和基因组学中的实际应用,我们开发了几种用于分析任意序列和全基因组的分析及可视化工具。这些工具包括两个比对工具zPicture和Mulan;一个系统发育阴影工具eShadow,用于识别特定谱系和物种的功能元件;两个进化保守转录因子分析工具rVista和multiTF;一个用于提取调控共调控基因表达的顺式调控模块的工具Creme 2.0;以及一个通向多个脊椎动物和无脊椎动物基因组比对的动态门户ECR浏览器。在此,我们简要描述这些工具中的每一个,并提供其实际应用的具体示例。所有工具均可在http://www.dcode.org/网站上公开获取。