Differential distribution of the Ca (2+) regulator Pcp4 in the branchial arches is regulated by Hoxa2.

Differential distribution of the Ca (2+) regulator Pcp4 in the branchial arches is regulated by Hoxa2.
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DOI:
10.1371/journal.pone.0063160
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Bobola N
Bobola N
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Anderson M;Amin S;Luise F;Zeef L;Bobola N

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鳃弓是所有脊椎动物胚胎头部区域的外部可见组织带。虽然最初由相似的部件形成,但每个拱形将产生不同的头部和颈部结构。在设计用于表征小鼠鳃弓身份的分子控制的筛选中,我们将Pcp4鉴定为第二鳃弓特异性分子标记。我们进一步表明,转录因子Hoxa2结合到Pcp4染色质和调节Pcp4的表达在第二arch.Hoxa2也足以诱导Pcp4的表达在前第一弓细胞,这是Pcp4阴性。
Branchial arches are externally visible tissue bands in the head region of all vertebrate embryos. Although initially formed from similar components, each arch will give rise to different head and neck structures. In a screen designed to characterize the molecular control of branchial arch identity in mouse, we identified Pcp4 as a second branchial arch-specific molecular signature. We further show that the transcription factor Hoxa2 binds to Pcp4 chromatin and regulates Pcp4 expression in the second arch. Hoxa2 is also sufficient to induce Pcp4 expression in anterior first arch cells, which are Pcp4-negative.
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