Regulation of imprinted expression by macro non-coding RNAs.
Regulation of imprinted expression by macro non-coding RNAs.
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DOI:
10.4161/rna.6.2.7854
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发表时间:
2009-04
期刊:
影响因子:
4.1
通讯作者:
Barlow DP
中科院分区:
文献类型:
--
作者:
Latos PA;Barlow DP
In mammals, imprinted genes are clustered and at least one gene in each imprinted cluster is a long i.e., macro non-coding (nc) RNA. Most genes in a cluster show concordant parental-specific expression but the ncRNA is the odd one out, and is expressed from the opposite parental chromosome. While reciprocal expression between imprinted macro non-coding RNAs and flanking mRNA genes is indicative of a functional role, only two of three tested macro ncRNAs have been shown to induce imprinted gene expression. The two known functional imprinted macro non-coding RNAs are both RNAPII transcripts with unusual transcriptional properties that may be functionally relevant and their analysis may shed light on the function of non-coding RNAs that have been shown to comprise the majority of the mammalian transcriptome.
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