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Nobelprize for TUM-Alumnus Prof. Joachim Frank

Jacques Dubochet, Joachim Frank and Richard Henderson today were awarded the Nobel Prize in chemistry 2017 for their groundbreaking work on the development of cryo-electron microscopy. Joachim Frank promoted in the group of Prof. Walter Hoppe, a pioneer of electron microscopy, at the Technical University of Munich (TUM). Today he is researching at Columbia University in New York.

The three-dimensional structure of proteins is decisive for their biological function. For a long time, the X-ray structure analysis was the means of choice to determine this structure with atomic resolution. But often proteins could not be crystallized. Moreover, in many cases, the shape of the protein changes in the course of the reaction – which can not be represented by the static crystal structure.

With the cryo-electron microscopy, Jacques Dubochet, Joachim Frank and Richard Henderson have created a tool to help bridge this gap. Using liquid nitrogen, the sample is cooled in the microscope reducing the destructive influence of the electron beam. In addition, the water contained in the sample is retained by the extremely fast cooling.

In continuation of the work of his doctoral father Hoppe, Joachim Frank succeeded in developing a strategy that can calculate a three-dimensional image of the structure from many high-resolution, two-dimensional images of an electron microscope.

In addition to X-ray structure analysis, cryo-electron microscopy and NMR spectroscopy are currently being used at the TU Munich to elucidate the structure and function of proteins.

At the Technical University of Munich, too, cryo-electron microscopy is currently used for the elucidation of the structure and function of proteins, additional to X-ray structure analysis and NMR spectroscopy.

“I am delighted that these three researchers are honored with the Nobel Prize,” says Sevil Weinkauf, Professor of Electron Microscopy at the TU Munich. “They are the pioneers in this field, and behind them are even more researchers with important contributions to bringing this method a major leap forward over the last few years.”

More information on scientists and alumni from the Technical University Munich that were awarded with a Nobel Prize can be found here.

This news was first published on www.tum.de

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