Putting CENP-A in its place

The centromere is the chromosomal region that directs kinetochore assembly during mitosis in order to facilitate the faithful segregation of sister chromatids. The location of the human centromere is epigenetically specified. The presence of nucleosomes that contain the histone H3 variant, CENP-A, a...

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Veröffentlicht in:Cellular and molecular life sciences : CMLS 2013-02, Vol.70 (3), p.387-406
Hauptverfasser: Stellfox, Madison E, Bailey, Aaron O, Foltz, Daniel R
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container_title Cellular and molecular life sciences : CMLS
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creator Stellfox, Madison E
Bailey, Aaron O
Foltz, Daniel R
description The centromere is the chromosomal region that directs kinetochore assembly during mitosis in order to facilitate the faithful segregation of sister chromatids. The location of the human centromere is epigenetically specified. The presence of nucleosomes that contain the histone H3 variant, CENP-A, are thought to be the epigenetic mark that indicates active centromeres. Maintenance of centromeric identity requires the deposition of new CENP-A nucleosomes with each cell cycle. During S-phase, existing CENP-A nucleosomes are divided among the daughter chromosomes, while new CENP-A nucleosomes are deposited during early G1. The specific assembly of CENP-A nucleosomes at centromeres requires the Mis18 complex, which recruits the CENP-A assembly factor, HJURP. We will review the unique features of centromeric chromatin as well as the mechanism of CENP-A nucleosome deposition. We will also highlight a few recent discoveries that begin to elucidate the factors that temporally and spatially control CENP-A deposition.
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Mol. Life Sci</addtitle><addtitle>Cell Mol Life Sci</addtitle><description>The centromere is the chromosomal region that directs kinetochore assembly during mitosis in order to facilitate the faithful segregation of sister chromatids. The location of the human centromere is epigenetically specified. The presence of nucleosomes that contain the histone H3 variant, CENP-A, are thought to be the epigenetic mark that indicates active centromeres. Maintenance of centromeric identity requires the deposition of new CENP-A nucleosomes with each cell cycle. During S-phase, existing CENP-A nucleosomes are divided among the daughter chromosomes, while new CENP-A nucleosomes are deposited during early G1. The specific assembly of CENP-A nucleosomes at centromeres requires the Mis18 complex, which recruits the CENP-A assembly factor, HJURP. We will review the unique features of centromeric chromatin as well as the mechanism of CENP-A nucleosome deposition. 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Bailey, Aaron O ; Foltz, Daniel R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c494t-34fcfc71d9900a64528e8c011856f79f418af2ec81590282bd4951ed7c70dccd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Autoantigens - chemistry</topic><topic>Autoantigens - metabolism</topic><topic>Biochemistry</topic><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Cell Biology</topic><topic>cell cycle</topic><topic>Cellular biology</topic><topic>Centromere - metabolism</topic><topic>Centromere Protein A</topic><topic>chromatids</topic><topic>Chromatin</topic><topic>Chromatin - metabolism</topic><topic>Chromosomal Proteins, Non-Histone - chemistry</topic><topic>Chromosomal Proteins, Non-Histone - metabolism</topic><topic>Chromosomes</topic><topic>Epigenetics</topic><topic>Epigenomics</topic><topic>factors</topic><topic>histones</topic><topic>Histones - genetics</topic><topic>Histones - metabolism</topic><topic>Humans</topic><topic>kinetochores</topic><topic>Kinetochores - metabolism</topic><topic>Life Sciences</topic><topic>mitosis</topic><topic>nucleosomes</topic><topic>Nucleosomes - metabolism</topic><topic>Protein Structure, Tertiary</topic><topic>Review</topic><topic>RNA, Untranslated - metabolism</topic><topic>S Phase</topic><topic>segregation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Stellfox, Madison E</creatorcontrib><creatorcontrib>Bailey, Aaron O</creatorcontrib><creatorcontrib>Foltz, Daniel R</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Calcium &amp; 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subjects Autoantigens - chemistry
Autoantigens - metabolism
Biochemistry
Biomedical and Life Sciences
Biomedicine
Cell Biology
cell cycle
Cellular biology
Centromere - metabolism
Centromere Protein A
chromatids
Chromatin
Chromatin - metabolism
Chromosomal Proteins, Non-Histone - chemistry
Chromosomal Proteins, Non-Histone - metabolism
Chromosomes
Epigenetics
Epigenomics
factors
histones
Histones - genetics
Histones - metabolism
Humans
kinetochores
Kinetochores - metabolism
Life Sciences
mitosis
nucleosomes
Nucleosomes - metabolism
Protein Structure, Tertiary
Review
RNA, Untranslated - metabolism
S Phase
segregation
title Putting CENP-A in its place
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