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有读书笔记有附件ppdb: a plant promoter database

4 wffsdxy 添加于 2010-4-21 20:31 | 3395 次阅读 | 1 个评论
  •  作 者

    Yamamoto YY, Obokata J
  •  摘 要

    ppdb (http://www.ppdb.gene.nagoya-u.ac.jp) is a plant promoter database that provides promoter annotation of Arabidopsis and rice. The database contains information on promoter structures, transcription start sites (TSSs) that have been identified from full-length cDNA clones and also a vast amount of TSS tag data. In ppdb, the promoter structures are determined by sets of promoter elements identified by a position-sensitive extrac- tion method called local distribution of short sequences (LDSS). By using this database, the core promoter structure, the presence of regulatory elements and the distribution of TSS clusters can be identified. Although no differentiation of promoter architecture among plant species has been reported, there is some divergence of utilized sequences for promoter elements. Therefore, ppdb is based on species-specific sets of promoter elements, rather than on general motifs for multiple species. Each regulatory sequence is hyperlinked to literary information, a PLACE entry served by a plant cis-element database, and a list of promoters containing the regulatory sequence.
  •  详细资料

    • 文献种类: Journal Article
    • 期刊名称: Nucleic Acids Research
    • 期刊缩写: Nucleic Acids Research
    • 期卷页: 2007  36 Database D977-D981
    • ISBN: 0305-1048
  • 学科领域 生物医药 » 生物学

  •  所属群组

    植物生物工程研究室  
  • 相关链接 DOI URL 

  •  附 件

    PDF附件ppdb: a plant promoter database 
  •  wffsdxy 的文献笔记  订阅

    [原创]

    基因转录调控网络的构建是系统生物学当前的研究热点之一,是理解基因调控关系、了解生物的分子机制、发现影响性状的关键调控基因的重要方法。目前基因转录调控网络构建的主要途径有两条,一是通过分析高通量的基因芯片数据来发现基因间的调控关系,另一条就是通过分析转录因子与启动子中顺式元件间的互作关系来发现基因间的调控关系。因此启动子的收集注释对于基因调控网络的构建具有极大的推动作用。

    植物启动子数据库Plant Promoter DatabasePPDB)包括启动子的结构信息,转录起始位点TSS,但仅提供了拟南芥和水稻启动子的注释。ppdb (http://www.ppdb.gene.nagoya-u.ac.jp) is a plant promoter database that provides promoter annotation of Arabidopsis and rice.The database contains information on promoter structures,transcription start sites (TSSs) that have been identified from full-length cDNA clones and also a vast amount of TSS tag data.

    所以建立一包括植物、动物的启动子数据库显得那么重要,现有一刚发布的启动子数据库(http://pbl.neau.edu.cn:8080/),Upstream sequence and Promoter Database (UPDB) is a database of promoters and upstream sequences of CDS or mRNA. All sequences are collected and annotated automatically, and some are curated. We focus on annotating every sequence with Transcription Start Site (TSS), Translation Initiation Site (TIS) and tissue-expression specificity / inducible-expression specificity.

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