In four lectures, Nobel laureate Thomas R. Cech, PhD, discusses the ability of RNA to act as more than just an intermediary between DNA and proteins.
Cellular enzymes are catalysts that tame reactions by accelerating them, lending specificity, and regulating their time and place.
Discovery of RNA's catalytic activity led to unexpected spin-offs, including a new scenario for the origin of life.
Studies of RNA catalytic centers have revealed much about their structure and mode of action.
The chromosome ends, or telomeres, are necessary for DNA stability and replication.