Tae-Hee Lee's August ACS Presentation covered by C&EN Magazine

It takes a lot of packaging to squeeze DNA into the nucleus of a cell. The DNA in our chromosomes is packaged into nucleosomes, which consist of about 150 DNA base pairs wrapped around eight-protein spools called histones.

http://acsmeetings.cenmag.org/method-watches-nucleosomes-open-and-close/