Centromere assembly requires the direct recognition of CENP-A nucleosomes by CENP-N.
Centromere assembly requires the direct recognition of CENP-A nucleosomes by CENP-N.
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DOI:
10.1038/ncb1899
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发表时间:
2009-07
影响因子:
21.3
通讯作者:
Straight, Aaron F.
中科院分区:
文献类型:
--
作者:
Carroll, Christopher W.;Silva, Mariana C. C.;Godek, Kristina M.;Jansen, Lars E. T.;Straight, Aaron F.
Centromeres are specialized chromosomal domains that direct kinetochore assembly during mitosis. CENP-A, a histone H3-variant present exclusively in centromeric nucleosomes, is thought to act as an epigenetic mark that specifies centromere identity. Here we identify the essential centromere protein CENP-N as the first protein to selectively bind CENP-A nucleosomes but not H3 nucleosomes. CENP-N bound CENP-A nucleosomes in a DNA-sequence independent manner but did not bind soluble CENP-A/H4 tetramers. Mutations in CENP-N that reduced the affinity of CENP-N for CENP-A nucleosomes caused defects in CENP-N localization and had dominant effects on the recruitment of CENP-H, CENP-I and CENP-K to centromeres. Depletion of CENP-N with siRNA’s led to similar centromere assembly defects and resulted in reduced assembly of nascent CENP-A into centromeric chromatin. These data suggest that CENP-N interprets the information encoded within CENP-A nucleosomes and recruits to centromeric chromatin other proteins required for centromere function and propagation.
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DOI:
10.1083/jcb.200701065
发表时间:
2007-03-12
期刊:
The Journal of cell biology
影响因子:
--
作者:
Maddox PS;Hyndman F;Monen J;Oegema K;Desai A
通讯作者:
Desai A
影响因子:
64.5
作者:
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Fukagawa, Tatsuo
影响因子:
64.5
作者:
SAITOH, H;TOMKIEL, J;EARNSHAW, WC
通讯作者:
EARNSHAW, WC
影响因子:
7.8
作者:
Jansen, Lars E. T.;Black, Ben E.;Foltz, Daniel R.;Cleveland, Don W.
通讯作者:
Cleveland, Don W.
DOI:
10.1083/jcb.200210005
发表时间:
2003-01-06
期刊:
The Journal of cell biology
影响因子:
--
作者:
Goshima G;Kiyomitsu T;Yoda K;Yanagida M
通讯作者:
Yanagida M