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Molecular Biology of the Cell
Article . 2009 . Peer-reviewed
Data sources: Crossref
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CENP-H–containing Complex Facilitates Centromere Deposition of CENP-A in Cooperation with FACT and CHD1

Authors: Masahiro, Okada; Katsuya, Okawa; Toshiaki, Isobe; Tatsuo, Fukagawa;

CENP-H–containing Complex Facilitates Centromere Deposition of CENP-A in Cooperation with FACT and CHD1

Abstract

Centromere identity is thought to be determined by epigenetic mechanisms. The centromere-specific histone H3 variant CENP-A plays a central role in specifying the locus where the centromere is constructed. However, the precise mechanisms that target CENP-A to centromeric chromatin are poorly understood. Here, we show that facilitates chromatin transcription (FACT) localizes to centromeres in a CENP-H–containing complex-dependent manner. In conditional mutant cell lines for SSRP1, a subunit of FACT, centromere targeting of newly synthesized CENP-A is severely inhibited. The chromatin remodeling factor CHD1 binds to SSRP1 both in vivo and in vitro and associates with centromeres. The centromeric localization of CHD1 is lost in SSRP1-depleted cells. RNA interference knockdown of CHD1 leads to a decrease in the amount of centromere localized CENP-A. These findings indicate that the CENP-H–containing complex facilitates deposition of newly synthesized CENP-A into centromeric chromatin in cooperation with FACT and CHD1.

Keywords

Chromosomal Proteins, Non-Histone, Centromere, DNA Helicases, High Mobility Group Proteins, Autoantigens, DNA-Binding Proteins, Protein Transport, Multiprotein Complexes, Mutation, Animals, Humans, Transcriptional Elongation Factors, Chickens, Centromere Protein A, HeLa Cells, Protein Binding

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
123
Top 10%
Top 10%
Top 1%
bronze