Functional genomics identifies a Myb domain-containing protein family required for assembly of CENP-A chromatin.
Functional genomics identifies a Myb domain-containing protein family required for assembly of CENP-A chromatin.
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DOI:
10.1083/jcb.200701065
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发表时间:
2007-03-12
期刊:
影响因子:
--
通讯作者:
Desai A
中科院分区:
文献类型:
--
作者:
Maddox PS;Hyndman F;Monen J;Oegema K;Desai A
Nucleosomes containing the centromere-specific histone H3 variant centromere protein A (CENP-A) create the chromatin foundation for kinetochore assembly. To understand the mechanisms that selectively target CENP-A to centromeres, we took a functional genomics approach in the nematode Caenorhabditis elegans, in which failure to load CENP-A results in a signature kinetochore-null (KNL) phenotype. We identified a single protein, KNL-2, that is specifically required for CENP-A incorporation into chromatin. KNL-2 and CENP-A localize to centromeres throughout the cell cycle in an interdependent manner and coordinately direct chromosome condensation, kinetochore assembly, and chromosome segregation. The isolation of KNL-2–associated chromatin coenriched CENP-A, indicating their close proximity on DNA. KNL-2 defines a new conserved family of Myb DNA-binding domain–containing proteins. The human homologue of KNL-2 is also specifically required for CENP-A loading and kinetochore assembly but is only transiently present at centromeres after mitotic exit. These results implicate a new protein class in the assembly of centromeric chromatin and suggest that holocentric and monocentric chromosomes share a common mechanism for CENP-A loading.
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DOI:
10.1083/jcb.153.6.1209
发表时间:
2001-06-11
期刊:
The Journal of cell biology
影响因子:
--
作者:
Oegema K;Desai A;Rybina S;Kirkham M;Hyman AA
通讯作者:
Hyman AA
DOI:
10.1073/pnas.88.9.3734
发表时间:
1991-05-01
影响因子:
11.1
作者:
PALMER, DK;ODAY, K;MARGOLIS, RL
通讯作者:
MARGOLIS, RL
影响因子:
56.9
作者:
Takahashi, K;Chen, ES;Yanagida, M
通讯作者:
Yanagida, M
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.
影响因子:
64.8
作者:
Buchwitz, BJ;Ahmad, K;Henikoff, S
通讯作者:
Henikoff, S