A Role for Histone Acetylation in the Developmental Regulation of V(D)J Recombination

被引：233

作者：

McMurry, Michelle Taylor ^{[1
]}

Krangel, Michael S. ^{[1
]}

机构：

[1] Duke Univ, Dept Immunol, Med Ctr, POB 3010, Durham, NC 27710 USA

来源：

JOURNAL OF IMMUNOLOGY | 2017年 / 199卷 / 01期

关键词：

DELTA-GENE REARRANGEMENT; NUCLEOSOMAL DNA; ALPHA-ENHANCER; HYPERACETYLATION; ACCESSIBILITY; CLEAVAGE; MICE; H4;

D O I：

10.1126/science.287.5452.495

中图分类号：

R392 [医学免疫学]; Q939.91 [免疫学];

学科分类号：

100102 ;

摘要：

V(D)J recombination is developmentally regulated in vivo by enhancer -dependent changes in the accessibility of chromosomal recombination signal sequences to the recombinase, but the molecular nature of these changes is unknown. Here histone H3 acetylation was measured along versions of a transgenic V(D)J recombination reporter and the endogenous T cell receptor alpha/delta locus. Enhancer activity was shown to impart tong-range, developmentally regulated changes in H3 acetylation, and H3 acetylation status was tightly linked to V(D)J recombination. H3 hyperacetylation is proposed as a molecular mechanism coupling enhancer activity to accessibiLity for V(D)J recombination.

引用

页码：5 / 8

页数：4

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