Thomas Robert Cech, Nobel Prize in Chemistry, 1989 MP

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Birthdate: (65)
Birthplace: Chicago, IL, USA
Managed by: Yigal Burstein / יגאל בורשטיין
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About Thomas Robert Cech, Nobel Prize in Chemistry, 1989

Thomas Robert Cech (born December 8, 1947 in Chicago) is a chemist who shared the 1989 Nobel prize in chemistry with Sidney Altman, for their discovery of the catalytic properties of RNA.

Cech discovered that RNA could itself cut strands of RNA, which showed that life could have started as RNA. He also studied telomeres, and his lab discovered an enzyme, TERT (telomerase reverse transcriptase), which is part of the process of restoring telomeres after they are shortened during cell division. As president of Howard Hughes Medical Institute, he promoted science education, and he teaches an undergraduate chemistry course at the University of Colorado.

Early life and career

Cech was born to parents of Czech origin (his grandfather was Czech, his other grandparents were first-generation Americans) in Chicago, he grew up in Iowa City, Iowa. In 1966, he entered Grinnell College where he obtained a B.A. in 1970. In 1975, Cech completed his Ph.D. in Chemistry at the University of California, Berkeley and in the same year, he entered the Massachusetts Institute of Technology where he engaged in postdoctoral research. In 1978, he obtained his first faculty position at the University of Colorado where he lectured undergraduate students in chemistry and biochemistry, and where he remains on the faculty, currently as Distinguished Professor in the Department of Chemistry and Biochemistry. In 2000, Cech succeeded Purnell Choppin as president of the Howard Hughes Medical Institute in Maryland. He also continues to head his biochemistry laboratory, the Colorado Initiative in Molecular Biotechnology, at the University of Colorado, Boulder. Cech continues to teach undergraduate chemistry at CU-Boulder. On April 1, 2008, Cech announced that he will step down as the president of HHMI, to return to teaching and research, in spring 2009.

Research

Cech's main research area is that of the process of transcription in the nucleus of cells. He studies how the genetic code of DNA is transcribed into RNA. In the 1970s, Cech had been studying the splicing of RNA in the unicellular organism Tetrahymena thermophila when he discovered that an unprocessed RNA molecule could splice itself. In 1982, Cech became the first to show that RNA molecules are not restricted to being passive carriers of genetic information - they can have catalytic functions and can participate in cellular reactions. RNA-processing reactions and protein synthesis on ribosomes in particular are catalysed by RNA. RNA enzymes are known as ribozymes and have provided a new tool for gene technology. They also have the potential to provide new therapeutic agents - for example, they have the ability to destroy and cleave invading, viral RNAs.

Cech's second area of research is on telomeres, the structure that protects the ends of chromosomes. Telomeres are shortened with every duplication of DNA, and must be lengthened again. He studies telomerase, the enzyme that copies the telomeric sequences and lengthens them. The active site protein subunits of telomerase comprise a new class of reverse transcriptases, enzymes previously thought to be restricted to viruses and transposable elements. Telomerase is activated in 90% of human cancers. Therefore, a drug that would inhibit its activity could be useful in treating cancer.

Awards

Cech's work has been recognised by many awards and prizes including: lifetime Professorship by the American Cancer Society (1987),the Louisa Gross Horwitz Prize from Columbia University(1988), the Heineken Prize of the Royal Netherlands Academy of Sciences (1988), the Albert Lasker Basic Medical Research Award (1988), the Nobel Prize in Chemistry (1989, shared with Sidney Altman) and the National Medal of Science (1995). In 1987, Cech was elected to the United States National Academy of Sciences and in 1988 he was elected to the American Academy of Arts and Sciences

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Thomas Cech, Nobel Prize in Chemistry, 1989's Timeline

1947
December 8, 1947
Chicago, IL, USA
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