CENH3 interacts with the centromeric retrotransposon cereba and GC-rich satellites and locates to centromeric substructures in barley

Andreas Houben, Elizabeth Schroeder-Reiter, Kiyotaka Nagaki, Shuhei Nasuda, Gerhard Wanner, Minoru Murata, Takashi R. Endo

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

The chromosomal location of centromere-specific histone H3 (CENH3) is the assembly site for the kinetochore complex of active centromeres. Chromatin immunoprecipitation data indicated that CENH3 interacts in barley with cereba, a centromeric retroelement (CR)-like element conserved among cereal centromeres and barley-specific GC-rich centromeric satellite sequences. Anti-CENH3 signals on extended chromatin fibers always colocalized with the centromeric sequences but did not encompass the entire area covered by such centromeric repeats. This indicates that the CENH3 protein is bound only to a fraction of the centromeric repeats. At mitotic metaphase, CENH3, histone H3, and serine 10 phosphorylated histone H3 predominated within distinct structural subdomains of the centromere, as demonstrated by immunogold labeling for high resolution scanning electron microscopy.

Original languageEnglish
Pages (from-to)275-283
Number of pages9
JournalChromosoma
Volume116
Issue number3
DOIs
Publication statusPublished - Jun 2007

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Retroelements
Centromere
Hordeum
Histones
Kinetochores
Chromatin Immunoprecipitation
Metaphase
Electron Scanning Microscopy
Serine
Chromatin

ASJC Scopus subject areas

  • Genetics

Cite this

CENH3 interacts with the centromeric retrotransposon cereba and GC-rich satellites and locates to centromeric substructures in barley. / Houben, Andreas; Schroeder-Reiter, Elizabeth; Nagaki, Kiyotaka; Nasuda, Shuhei; Wanner, Gerhard; Murata, Minoru; Endo, Takashi R.

In: Chromosoma, Vol. 116, No. 3, 06.2007, p. 275-283.

Research output: Contribution to journalArticle

Houben, Andreas ; Schroeder-Reiter, Elizabeth ; Nagaki, Kiyotaka ; Nasuda, Shuhei ; Wanner, Gerhard ; Murata, Minoru ; Endo, Takashi R. / CENH3 interacts with the centromeric retrotransposon cereba and GC-rich satellites and locates to centromeric substructures in barley. In: Chromosoma. 2007 ; Vol. 116, No. 3. pp. 275-283.
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