The DNA in the cell nucleus is highly condensed, and genes must be rendered accessible before they can be activated. A team has now described the action of a protein complex that serves as a yardstick to measure lengths of exposed DNA.
The DNA in the cell nucleus is highly condensed, and genes must be rendered accessible before they can be activated. A team has now described the action of a protein complex that serves as a yardstick to measure lengths of exposed DNA.