The FK506-binding protein, Fpr4, is an acidic histone chaperone.
The FK506-binding protein, Fpr4, is an acidic histone chaperone.
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FK506 结合蛋白 Fpr4 是一种酸性组蛋白伴侣。
DOI:
10.1016/j.febslet.2006.06.093
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
Lei,Ming
中科院分区:
文献类型:
--
作者:
Xiao,Haijie;Jackson,Vaughn;Lei,Ming
Fpr4, a FK506-binding protein (FKBP), is a recently identified novel histone chaperone. How it interacts with histones and facilitates their deposition onto DNA, however, are not understood. Here, we report a functional analysis that shows Fpr4 forms complexes with histones and facilitates nucleosome assembly like previously characterized acidic histone chaperones. We also show that the chaperone activity of Fpr4 resides solely in an acidic domain, while the peptidylprolyl isomerase domain conserved among all FKBPs inhibits the chaperone activity. These observations argue that Fpr4, while unique structurally, deposits histones onto DNA for nucleosome assembly through the well-established mechanism shared by other chaperones.