Chemist Thomas Cech: Iowa Time Machine December 8, 1947

Iowa Time Machine ⏰: On December 8, 1947, Nobel Prize-winning chemist Thomas Cech was born. Credited as the co-discoverer of the catalytic properties of RNA, Cech discovered RNA can itself cut strands of RNA, suggesting life might have started as RNA.

Growing up in Iowa City, Cech showed an intense interest in science at a young age. In junior high school, he knocked on the doors of geology professors at the University of Iowa. He asked them to discuss crystal structures, meteorites, and fossils. Cech eventually gained distinction as a National Merit Scholar at Iowa City, City High. Cech enrolled at Grinnell College in 1966.

During his time at Grinnell, Cech studied a wide range of subjects, including constitutional history and chemistry. He also met his wife, Carol Lynn Martinson, after the two partnered in the lab for an organic chemistry course. After graduating from Grinnell in 1970, Cech completed his PhD in chemistry at the University of California, Berkeley, and then pursued a postdoc at MIT.

In the 1970s, Cech began studying RNA splicing in the unicellular organism Tetrahymena thermophila and discovered that an unprocessed RNA molecule could splice itself. In 1982, Cech became the first to show that RNA molecules are not merely passive carriers of genetic information—they can have catalytic functions and participate in cellular reactions. In 1989, Cech shared the Nobel Prize in Chemistry with Sidney Altman for their discovery of RNA's catalytic properties. #Iowa #OTD #History #NobelPrize #Chemistry