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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Corepressor SMRT binds the BTB/POZ repressing domain of the LAZ3/BCL6 oncoprotein
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Corepressor SMRT binds the BTB/POZ repressing domain of the LAZ3/BCL6 oncoprotein

机译:Corepressor SMRT结合LAZ3 / BCL6癌蛋白的BTB / POZ抑制域

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摘要

The LAZ3/BCL6 (lymphoma-associated zinc finger 3/B cell lymphomas 6) gene frequently is altered in non-Hodgkin lymphomas. It encodes a sequence-specific DNA binding transcriptional repressor that contains a conserved N-terminal domain, termed BTB/POZ (bric-a-brac tramtrack broad complex/pox viruses and zinc fingers). Using a yeast two-hybrid screen, we show here that the LAZ3/BCL6 BTB/ POZ domain interacts with the SMRT (silencing mediator of retinoid and thyroid receptor) protein. SMRT originally was identified as a corepressor of unliganded retinoic acid and thyroid receptors and forms a repressive complex with a mammalian homolog of the yeast transcriptional repressor SIN3 and the HDAC-1 histone deacetylase.
机译:在非霍奇金淋巴瘤中,LAZ3 / BCL6(淋巴瘤相关的锌指3 / B细胞淋巴瘤6)基因经常发生改变。它编码一个序列特异性的DNA结合转录阻遏物,该阻遏物包含一个保守的N末端结构域,称为BTB / POZ(金砖四道病毒广泛的复合体/痘病毒和锌指)。使用酵母双杂交筛选,我们在这里显示LAZ3 / BCL6 BTB / POZ域与SMRT(类视黄醇和甲状腺受体的沉默介质)相互作用。 SMRT最初被确定为未配体的视黄酸和甲状腺受体的核心抑制剂,并与酵母转录抑制因子SIN3和HDAC-1组蛋白脱乙酰基酶的哺乳动物同源物形成抑制复合物。

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