A comparative proteome analysis of human metaphase chromosomes isolated from two different cell lines reveals a set of conserved chromosome-associated proteins

Hideaki Takata, Susumu Uchiyama, Naoko Nakamura, Shoko Nakashima, Shouhei Kobayashi, Takefumi Sone, Sumiko Kimura, Sunshine Lahmers, Henk Granzier, Siegfried Labeit, Sachihiro Matsunaga, Kiichi Fukui

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39 Scopus citations

Abstract

A comparative proteome analysis of human metaphase chromosomes between a typical epithelial-like cell, HeLa S3, and a lymphoma-type cell, BALL-1, was performed. One-dimensional (1-D) SDS-PAGE and radical-free and highly reducing two-dimensional electrophoresis (RFHR 2-DE) detected more than 200 proteins from chromosomes isolated from HeLa S3 cells, among which 189 proteins were identified by mass spectrometry (MS). Consistent with our recent four-layer structural model of a metaphase chromosome, all the identified proteins were grouped into four distinct levels of abundance. Both HeLa S3 and BALL-1 chromosomes contained specific sets of abundant chromosome structural and peripheral proteins in addition to less abundant chromosome coating proteins (CCPs). Furthermore, titin array analysis and a proteome analysis of the ultra-high molecular mass region indicated an absence of titin with their molecular weight (MW) more than 1000 kDa. Consequently, the present proteome analyses together with previous information on chromosome proteins provide the comprehensive list of proteins essential for the metaphase chromosome architecture.

Original languageEnglish (US)
Pages (from-to)269-284
Number of pages16
JournalGenes to Cells
Volume12
Issue number3
DOIs
StatePublished - Mar 1 2007

ASJC Scopus subject areas

  • Genetics
  • Cell Biology

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    Takata, H., Uchiyama, S., Nakamura, N., Nakashima, S., Kobayashi, S., Sone, T., Kimura, S., Lahmers, S., Granzier, H., Labeit, S., Matsunaga, S., & Fukui, K. (2007). A comparative proteome analysis of human metaphase chromosomes isolated from two different cell lines reveals a set of conserved chromosome-associated proteins. Genes to Cells, 12(3), 269-284. https://doi.org/10.1111/j.1365-2443.2007.01051.x