HMGB1: roles in base excision repair and related function.

HMGB1: roles in base excision repair and related function.
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HMGB1:在碱基切除修复和相关功能中的作用。

DOI:
10.1016/j.bbagrm.2009.11.008
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发表时间:
2010-01
影响因子:
4.7
通讯作者:
Wilson, Samuel H.
Wilson, Samuel H.
中科院分区:
生物学2区
文献类型:
--
作者:
Liu, Yuan;Prasad, Rajendra;Wilson, Samuel H.

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高迁移率族蛋白 1 (HMGB1) 是一种非组蛋白结构蛋白,参与许多生物过程,包括染色质重塑、转录、炎症细胞信号传导、DNA 损伤修复等。最近的研究发现 HMGB1 与 DNA 碱基切除修复中间体存在交联,表明该蛋白参与碱基切除修复 (BER) 途径。 HMGB1 在 BER 中的作用的进一步表征表明,该蛋白作为辅助因子通过抑制单核苷酸 BER 并通过调节碱基切除修复酶的活性刺激长补丁 BER 来调节 BER 子通路。将碱基损伤修复引导至长补丁子通路可导致三核苷酸重复不稳定,表明 HMGB1 在调节基因组稳定性中发挥重要作用。
High mobility group box 1 (HMGB1) is a nonhistone architectural protein that is involved in many biological processes including chromatin remodeling, transcription, cell signaling of inflammation, DNA damage repair and others. Recent studies have identified the cross-link of HMGB1 with a DNA base excision repair intermediate indicating that this protein is involved in base excision repair (BER) pathway. Further characterization of the roles HMGB1 in BER demonstrates that the protein acts as a cofactor to regulate BER sub-pathways by inhibiting single-nucleotide BER and stimulating long-patch BER through modulating the activities of base excision repair enzymes. Directing of base lesion repair to the long-patch sub-pathway can result in trinucleotide repeat instability suggesting an important role of HMGB1 in modulating genome stability.
DOI: 10.1074/jbc.m412922200
发表时间: 2005-02-04
影响因子: 4.8
作者:
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通讯作者: Wilson, SH
DOI: 10.1074/jbc.m109.050286
发表时间: 2009-10-09
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作者:
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通讯作者: Wilson, Samuel H.
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