Brendan Maher | May 26, 2002 | 2 min read
For a team at the University of California, San Diego, nine years of tinkering with arsenic paid off in the development of a new technique that can tag proteins with different colors over time and even zero in to electron microscopic resolution. Roger Tsien, Howard Hughes Medical Institute investigator and professor of pharmacology, chemistry, and biochemistry at UCSD, says the project started with the suggestion from a colleague that one can tag a two-cysteine sequence in a protein with a singl