UTF1 is a chromatin-associated protein involved in ES cell differentiation.

UTF1 is a chromatin-associated protein involved in ES cell differentiation.
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UTF1是与ES细胞分化有关的染色质相关蛋白。

DOI:
10.1083/jcb.200702058
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发表时间:
2007-09-10
影响因子:
7.8
通讯作者:
Eggen, Bart J. L.
Eggen, Bart J. L.
中科院分区:
生物学1区
文献类型:
--
作者:
van den Boom, Vincent;Kooistra, Susanne M.;Boesjes, Mariie;Geverts, Bart;Houtsmuller, Adriaan B.;Monzen, Koshiro;Komuro, Issei;Essers, Jeroen;Drenth-Diephuis, Loes J.;Eggen, Bart J. L.

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胚胎干 (ES) 细胞能够无限生长(自我更新),并具有分化成所有成体细胞类型的潜力(多能性)。控制多能性的调控网络已得到很好的表征,而 ES 细胞从自我更新到分化的分子基础却知之甚少,尽管动态表观遗传基因沉默和染色质压缩显然与此有关。在这项研究中,我们报道了 UTF1(未分化胚胎细胞转录因子 1)参与 ES 细胞分化。 ES 和癌细胞中 UTF1 的敲低导致分化的显着延迟或阻碍。在光漂白测定、亚核分级分离和报告基因测定后使用荧光恢复进行的进一步分析表明,UTF1 是一种稳定的染色质相关转录抑制蛋白,具有与核心组蛋白类似的动态行为。 UTF1 的这些特性需要 N 端 Myb/SANT 结构域和包含推定亮氨酸拉链的 C 端结构域。这些数据表明 UTF1 是一种与 ES 细胞分化起始相关的强染色质相关蛋白。
Embryonic stem (ES) cells are able to grow indefinitely (self-renewal) and have the potential to differentiate into all adult cell types (pluripotency). The regulatory network that controls pluripotency is well characterized, whereas the molecular basis for the transition from self-renewal to the differentiation of ES cells is much less understood, although dynamic epigenetic gene silencing and chromatin compaction are clearly implicated. In this study, we report that UTF1 (undifferentiated embryonic cell transcription factor 1) is involved in ES cell differentiation. Knockdown of UTF1 in ES and carcinoma cells resulted in a substantial delay or block in differentiation. Further analysis using fluorescence recovery after photobleaching assays, subnuclear fractionations, and reporter assays revealed that UTF1 is a stably chromatin-associated transcriptional repressor protein with a dynamic behavior similar to core histones. An N-terminal Myb/SANT domain and a C-terminal domain containing a putative leucine zipper are required for these properties of UTF1. These data demonstrate that UTF1 is a strongly chromatin-associated protein involved in the initiation of ES cell differentiation.
DOI: 10.1083/jcb.153.7.1341
发表时间: 2001-06-25
期刊: The Journal of cell biology
影响因子: --
作者:
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通讯作者: Cook PR
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期刊: CELL
影响因子: 64.5
作者:
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