Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Genetics. 2007 Jun;176(2):1299-306. Epub 2007 Apr 3.

Transcriptional interferences in cis natural antisense transcripts of humans and mice.

Author information

  • 1Center for Information Biology and DNA Data Bank of Japan, National Institute of Genetics, Research Organization of Information and Systems, Mishima 411-8540, Japan.

Abstract

For a significant fraction of mRNAs, their expression is regulated by other RNAs, including cis natural antisense transcripts (cis-NATs) that are complementary mRNAs transcribed from opposite strands of DNA at the same genomic locus. The regulatory mechanism of mRNA expression by cis-NATs is unknown, although a few possible explanations have been proposed. To understand this regulatory mechanism, we conducted a large-scale analysis of the currently available data and examined how the overlapping arrangements of cis-NATs affect their expression level. Here, we show that for both human and mouse the expression level of cis-NATs decreases as the length of the overlapping region increases. In particular, the proportions of the highly expressed cis-NATs in all cis-NATs examined were approximately 36 and 47% for human and mouse, respectively, when the overlapping region was <200 bp. However, both proportions decreased to virtually zero when the overlapping regions were >2000 bp in length. Moreover, the distribution of the expression level of cis-NATs changes according to different types of the overlapping pattern of cis-NATs in the genome. These results are consistent with the transcriptional collision model for the regulatory mechanism of gene expression by cis-NATs.

PMID:
17409075
[PubMed - indexed for MEDLINE]
PMCID:
PMC1894591
Free PMC Article

Images from this publication.See all images (4)Free text

F igure  1.—
F igure  2.—
F igure  3.—
F igure  4.—
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire Icon for PubMed Central
    Loading ...
    Write to the Help Desk