The building blocks for RNA-based life abound at the center of our galaxy
Newswise — Nitriles, a class of organic molecules with a cyano group, that is, a carbon atom bonded by an unsaturated triple bond to a nitrogen atom, are typically toxic. But paradoxically, they are also key precursors to molecules essential for life, such as ribonucleotides, which are made up of nucleobases or ‘letters’ A, U, C, and G joined by ribose and phosphate groups, which together make up RNA. Now, a team of researchers from Spain, Japan, Chile, Italy, and the US is showing that various nitriles occur in interstellar space in the G+0.693-0.027 molecular cloud, near the center of the Milky Way. Dr Víctor M. Rivilla, a researcher at the Center for Astrobiology of the Spanish National Research Council (CSIC) and the National Institute of Aerospace Technology (INTA) in Madrid, Spain, and first author of the new study, said: “Here we show that the chemistry that occurs in the medium interstellar capable of efficiently forming multiple nitriles, which are key molecular precursors o