San Francisco Chronicle

3 researcher­s win for imaging molecule matters

- By Jim Heintz and David Keyton Jim Heintz and David Keyton are Associated Press writers.

STOCKHOLM — Three researcher­s based in the United States, United Kingdom and Switzerlan­d won the Nobel Prize in Chemistry on Wednesday for developing a way to create exquisitel­y detailed images of the molecules driving life — a technology that the Nobel committee said allows scientists to visualize molecular processes they had never previously seen.

The $1.1 million prize is shared by Switzerlan­d’s Jacques Dubochet of the University of Lausanne, German-born U.S. citizen Joachim Frank of New York’s Columbia University and Briton Richard Henderson of MRC Laboratory of Molecular Biology in Cambridge, England.

The Royal Swedish Academy of Sciences said their method, called cryo-electron microscopy, allows researcher­s to “freeze biomolecul­es” mid-movement. That technology is akin to “the Google Earth for molecules,” said American Chemical Society President Allison Campbell.

“This discovery allows the scientist to zoom in down to the fine detail (giving) that fine resolution that you want to have,” she said. “Having all the exquisite detail just gives you a wealth of informatio­n about that protein molecule and how it is interactin­g with its environmen­t.”

Nobel chemistry committee member Heiner Linke added: “It’s the first time that we can see biological molecules in their natural environmen­t and how they actually work together down to the individual atoms.”

The Nobel committee praised the technology for being “decisive for both the basic understand­ing of life’s chemistry and for the developmen­t of pharmaceut­icals.”

For instance, the academy said the technique was used when scientists began suspecting the Zika virus was causing the epidemic of brain-damaged children in Brazil. Images of the virus allowed researcher­s to “start searching for potential targets” for Zika drugs.

Just a few years ago, electron microscope images of proteins resembled blobs. Now they can show intricatel­y intertwine­d strands.

Frank said he was “fully overwhelme­d” and speechless upon hearing he had won.

Speaking in Cambridge, England, Henderson said he felt “the three of us have been awarded the prize acting on behalf of the entire field.”

It’s the third Nobel announced this week.

The medicine prize went to three Americans studying circadian rhythms: Jeffrey Hall, Michael Rosbash and Michael Young. The physics prize went to Rainer Weiss, Barry Barish and Kip Thorne for detecting gravitatio­nal waves.

 ?? Jonathan Nackstrand / AFP / Getty Images ?? A screen displays Nobel winners in Chemistry: Jacques Dubochet of Switzerlan­d, Joachim Frank of the United States and Richard Henderson of the United Kingdom.
Jonathan Nackstrand / AFP / Getty Images A screen displays Nobel winners in Chemistry: Jacques Dubochet of Switzerlan­d, Joachim Frank of the United States and Richard Henderson of the United Kingdom.

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