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Jennifer A. Doudna

 

Biographical Highlights

 

New Insights Into Protein Synthesis and Hepatitis C Infections
(LBNL Research News, December 2005)

Scientists have uncovered key new information towards understanding the crucial first step in protein synthesis, the process by which the genetic code, harbored within DNA and copied into RNA, is translated into the production of proteins. This new information also helps to explain how viruses, such as Hepatitis C, are able to highjack protein synthesis machinery in humans for their own purposes.

Biochemist Jennifer Doudna and biophysicist Eva Nogales, both of whom hold joint appointments with the Lawrence Berkeley National Laboratory (Berkeley Lab), the University of California at Berkeley, and the Howard Hughes Medical Institute (HHMI), led a study in which cryo electron microscopy (cryo-EM) was used to create a 3-D model of the protein complex called eukaryotic translation initiation factor 3 (eIF3). The model showed that the eIF3 protein complex employs the same structural mechanics in the loading of either human or viral RNA to ribosomes, the complex machinery in living cells responsible for protein synthesis.

"This is the first insight into how the initiation mechanisms of protein synthesis work specifically for humans, and a step towards understanding at the molecular level what happens when a viral infection occurs," said Doudna, a member of Berkeley Lab's Physical Biosciences Division. "A better understanding of these mechanisms could open the door to new and improved therapies for viral infections."
(LBNL Research News source)

 

Renaissance Women featuring Dr. Doudna (HHMI Bulletin, Spring 2005)

The latest chapter of the "debate" over whether women can compete in science has been playing out recently in print and over airwaves nationwide. But Rita Colwell thinks some of the issues raised today against women in science have already been soundly refuted. "We shouldn't be reliving those arguments from the 1940s and '50s," says Colwell, a former director of the National Science Foundation (NSF) who is now a professor at the University of Maryland and Johns Hopkins University.

As evidence, she holds up three of the last five winners of NSF's Alan T. Waterman Award -- three HHMI investigators who have shown "unequivocally that women scientists can compete."

Angelika Amon, Kristi S. Anseth, and Jennifer A. Doudna work in different areas of science, but they share similar career stories. Each, for example, won the Waterman award, a $500,000 honor that recognizes significant research by an investigator under the age of 35 (see sidebar). "Significant" may in fact be an understatement. Anseth's work in tissue engineering, Amon's contributions to cell-cycle regulation, and Doudna's discovery of RNA ribozyme structures have fundamentally changed the ways their peers approach critical questions.
(more - 840KB .pdf) (HHMI Bulletin source)

 

Biography of Dr. Doudna (PNAS, December 2004)

In the central dogma of molecular biology, DNA is transcribed into RNA, which then is translated into protein. Although RNA may be considered simply an intermediary between these two important biological molecules, RNA is much more than just a recipe for making proteins. In the 1980s, researchers showed that certain RNA molecules function as enzymes, a role previously attributed solely to proteins. Jennifer A. Doudna, Ph.D., Professor of Molecular and Cell Biology and Chemistry at the University of California, Berkeley, has devoted her scientific career to revealing the secret life of RNA. Using structural biology and biochemistry, Doudna's work deciphering the molecular structure of RNA enzymes (ribozymes) and other functional RNAs has shown how these seemingly simple molecules can carry out the complex functions of proteins. (more - 218KB .pdf) (PNAS source)

 

Interview with Dr. Doudna (NAS, November 2004)

Listen to an interview with Dr. Doudna.

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