The oocyte-specific methylated region of the U2afbp-rs/U2af1-rs1 gene is dispensable for its imprinted methylation.

The oocyte-specific methylated region of the U2afbp-rs/U2af1-rs1 gene is dispensable for its imprinted methylation.
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U2afbp-rs/U2af1-rs1 基因的卵母细胞特异性甲基化区域对于其印迹甲基化来说是可有可无的。

DOI:
10.1006/bbrc.2000.2189
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发表时间:
2000
影响因子:
3.1
通讯作者:
M. Katsuki
M. Katsuki
中科院分区:
生物学4区
文献类型:
--
作者:
S. Sunahara;K. Nakamura;K. Nakao;Y. Gondo;Y. Nagata;M. Katsuki

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印记基因具有在配子中差异甲基化的离散区域;通常在胚胎发生期间通过修改配子中的初始甲基化模式来建立成人中的最终差异甲基化模式。以前的报告表明,一个200 bp的区域称为区域II内的CpG岛的小鼠印迹U2 afbp-rs基因甲基化的卵母细胞,但不是在精子中,这表明该地区是一个中心的甲基化的CpG的繁殖的母亲等位基因,也是一个候选人的印迹控制元件。为了确定区域II是否是该基因在内源性位点的印迹甲基化所需的,我们产生了携带该区域缺失的小鼠。我们在此表明,父母的甲基化差异仍然存在于区域II缺失的等位基因的CpG岛。这些发现表明,区域II是U2 afbp-rs基因的印迹甲基化的区域。
Imprinted genes harbor discrete regions which are differentially methylated in gametes; usually the final differential methylation patterns in adults are established during embryogenesis through modifications of the initial methylation patterns in gametes. Previous reports have shown that a 200-bp region termed region II within the CpG island of the mouse imprinted U2afbp-rs gene is methylated in oocytes but not in sperm, suggesting that this region is a center for the propagation of methylated CpGs on the maternal allele and is also a candidate for an imprinting control element. To determine whether region II is required for the imprinted methylation of this gene at the endogenous locus, we generated mice carrying a deletion of this region. We herein show that parental methylation differences still exist in the CpG island on the region II-deleted allele. These findings suggest that region II is dispensable for the imprinted methylation of the U2afbp-rs gene.
小鼠 U2afbp-rs/U2af1-rs1 基因中的卵母细胞特异性甲基化印记中心标志着植入前发育过程中等位基因特异性甲基化的建立。
DOI: 10.1006/geno.1997.4877
发表时间: 1997
期刊: Genomics.
影响因子: --
作者:
Shibata,H;Ueda,T;Kamiya,M;Yoshiki,A;Kusakabe,M;Plass,C;Held,WA;Sunahara,S;Katsuki,M;Muramatsu,M;Hayashizaki,Y
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发表时间: 1998-12-01
影响因子: 10.5
作者:
Thorvaldsen, JL;Duran, KL;Bartolomei, MS
通讯作者: Bartolomei, MS
小鼠 11 号染色体上印记基因 U2af1-rs1 的非活性等位基因特异性甲基化和染色质结构。
DOI: 10.1006/geno.1996.0348
发表时间: 1996
期刊: Genomics
影响因子: 4.4
作者:
Shibata,H;Yoshino,K;Sunahara,S;Gondo,Y;Katsuki,M;Ueda,T;Kamiya,M;Muramatsu,M;Murakami,Y;Kalcheva,I;Plass,C;Chapman,VM;Hayashizaki,Y
通讯作者: Hayashizaki,Y