Kruppel-associated box (KRAB) proteins in the adaptive immune system.

Kruppel-associated box (KRAB) proteins in the adaptive immune system.
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适应性免疫系统中的克鲁佩尔相关盒 (KRAB) 蛋白。

DOI:
10.4161/nucl.28738
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发表时间:
2014-03
期刊:
Nucleus (Austin, Tex.)
影响因子:
--
通讯作者:
Santoni de Sio FR
Santoni de Sio FR
中科院分区:
其他
文献类型:
--
作者:
Santoni de Sio FR

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适应性免疫系统保护高等脊椎动物免受病原体侵害的能力在于B和T细胞表达不同抗原特异性受体并通过激活不同的分化和/或激活途径来响应不同威胁的能力。在过去的10年中,表观遗传学在控制负责这些特殊功能的分子机制,更一般地说,淋巴细胞发育的主要作用已经变得明显。KRAB-ZFP是最广泛的哺乳动物转录抑制因子家族,其通过募集辅因子KRAB相关蛋白1(KAP 1)来发挥功能,所述辅因子KRAB相关蛋白1(KAP 1)进而接合诱导异染色质形成的组蛋白修饰剂。虽然大多数关于KRAB蛋白的研究都是在胚胎细胞中进行的,但最近的报道强调了这些蛋白在成人组织中的相关作用。本文将综述KRAB-ZFP和KAP 1在小鼠和人类适应性免疫细胞的表观遗传控制中的作用。
The ability of adaptive immune system to protect higher vertebrates from pathogens resides in the ability of B and T cells to express different antigen specific receptors and to respond to different threats by activating distinct differentiation and/or activation pathways. In the past 10 years, the major role of epigenetics in controlling molecular mechanisms responsible for these peculiar features and, more in general, for lymphocyte development has become evident. KRAB-ZFPs is the widest family of mammalian transcriptional repressors, which function through the recruitment of the co-factor KRAB-Associated Protein 1 (KAP1) that in turn engages histone modifiers inducing heterochromatin formation. Although most of the studies on KRAB proteins have been performed in embryonic cells, more recent reports highlighted a relevant role for these proteins also in adult tissues. This article will review the role of KRAB-ZFP and KAP1 in the epigenetic control of mouse and human adaptive immune cells.
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