Conclusive evidence of the reconstituted hexasome proven by native mass spectrometry

Nanako Azegami, Kazumi Saikusa, Yasuto Todokoro, Aritaka Nagadoi, Hitoshi Kurumizaka, Yoshifumi Nishimura*, Satoko Akashi

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    20 Citations (Scopus)


    It has been suggested that the hexasome, in which one of the H2A/H2B dimers is depleted from the canonical nucleosome core particle (NCP), is an essential intermediate during NCP assembly and disassembly, but little structural evidence of this exists. In this study, reconstituted products in a conventional NCP preparation were analyzed by native electrospray ionization mass spectrometry, and it was found that the hexasome, which migrated in a manner almost identical to that of the octasome NCP in native polyacrylamide gel electrophoresis, was produced simultaneously with the octasome NCP. This result might contribute to understanding the assembly and disassembly mechanism of NCPs.

    Original languageEnglish
    Pages (from-to)5155-5157
    Number of pages3
    Issue number31
    Publication statusPublished - 2013 Aug 6

    ASJC Scopus subject areas

    • Biochemistry


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