Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Fluorescence recovery signal for isolated nuclei stained with H33342 at 2 M NaCl, where the proteins are completely dissociated from the DNA. (b) Same as in a but after exposure to ∼20 J/cm2 of 365 nm cross-linking light. Both a and b are averages of five scans.
