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Naturally occurring antisense RNA of histone H2a in mouse cultured cell lines.


ABSTRACT: BACKGROUND: An antisense transcript of histone H2a that has no significant protein-coding region has been cloned from a mouse full-length cDNA library. In the present study, we evaluated this transcript by using RT-PCR and compared the expression patterns of the sense and antisense transcripts by using quantitative RT-PCR (qRT-PCR). RESULTS: This antisense RNA was expressed in three mouse cell lines. We call it ASH2a. ASH2a includes not only the complementary sequence of the transcript of Hist2h2aa2 (a replication-dependent histone H2a gene), but also that of the promoter of Hist2h2aa2. The upstream genomic sequence of the transcription start site of the ASH2a-coding gene (ASH2a) lacks both CCAAT and TATA boxes. This absence suggests that the regulation of ASH2a is different from that of the replication-dependent histone H2a genes. Findings from qRT-PCR indicated that the expression pattern of ASH2a was different from that of Hist2h2aa2. Expression of Hist2h2aa2 peaked at 2 to 4 h during S-phase, but that of ASH2a peaked at 1 h. CONCLUSION: We showed the existence of ASH2a, a histone H2a antisense RNA, in mouse cultured cells. The expression pattern of ASH2a is different from that of the sense RNA.

SUBMITTER: Nishida H 

PROVIDER: S-EPMC1156883 | biostudies-literature | 2005

REPOSITORIES: biostudies-literature

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Naturally occurring antisense RNA of histone H2a in mouse cultured cell lines.

Nishida Hiromi H   Tomaru Yasuhiro Y   Oho Yuko Y   Hayashizaki Yoshihide Y  

BMC genetics 20050514


<h4>Background</h4>An antisense transcript of histone H2a that has no significant protein-coding region has been cloned from a mouse full-length cDNA library. In the present study, we evaluated this transcript by using RT-PCR and compared the expression patterns of the sense and antisense transcripts by using quantitative RT-PCR (qRT-PCR).<h4>Results</h4>This antisense RNA was expressed in three mouse cell lines. We call it ASH2a. ASH2a includes not only the complementary sequence of the transcr  ...[more]

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