CpG islands or CpG clusters: how to identify functional GC-rich regions in a genome?
CpG islands or CpG clusters: how to identify functional GC-rich regions in a genome?
复制标题
CpG 岛或 CpG 簇:如何识别基因组中功能性富含 GC 的区域?
DOI:
10.1186/1471-2105-10-65
复制
发表时间:
2009-02-20
影响因子:
3
通讯作者:
Zhao Z
中科院分区:
文献类型:
--
作者:
Han L;Zhao Z
CpG islands (CGIs), clusters of CpG dinucleotides in GC-rich regions, are often located in the 5' end of genes and considered gene markers. Hackenberg et al. (2006) recently developed a new algorithm, CpGcluster, which uses a completely different mathematical approach from previous traditional algorithms. Their evaluation suggests that CpGcluster provides a much more efficient approach to detecting functional clusters or islands of CpGs. We systematically compared CpGcluster with the traditional algorithm by Takai and Jones (2002). Our comparisons of (1) the number of islands versus the number of genes in a genome, (2) the distribution of islands in different genomic regions, (3) island length, (4) the distance between two neighboring islands, and (5) methylation status suggest that Takai and Jones' algorithm is overall more appropriate for identifying promoter-associated islands of CpGs in vertebrate genomes. The generation of genome sequence and DNA methylation data is expected to accelerate greatly. The information in this study is important for its extensive utility in gene feature analysis and epigenomics including gene prediction and methylation chip design in different genomes.
登录
查看更多内容
影响因子:
56.9
作者:
Carninci, P;Kasukawa, T;Hayashizaki, Y
通讯作者:
Hayashizaki, Y
影响因子:
12.3
作者:
Han L;Su B;Li WH;Zhao Z
通讯作者:
Zhao Z
影响因子:
30.8
作者:
Ioshikhes, IP;Zhang, MQ
通讯作者:
Zhang, MQ
影响因子:
4.4
作者:
Jiang, Cizhong;Zhao, Zhongming
通讯作者:
Zhao, Zhongming
影响因子:
30.8
作者:
Weber, Michael;Hellmann, Ines;Schubeler, Dirk
通讯作者:
Schubeler, Dirk