Extraterrestrial ribose and other sugars in primitive meteorites.

ABSTRACT: Sugars are essential molecules for all terrestrial biota working in many biological processes. Ribose is particularly essential as a building block of RNA, which could have both stored information and catalyzed reactions in primitive life on Earth. Meteorites contain a number of organic compounds including key building blocks of life, i.e., amino acids, nucleobases, and phosphate. An amino acid has also been identified in a cometary sample. However, the presence of extraterrestrial bioimportant sugars remains unclear. We analyzed sugars in 3 carbonaceous chondrites and show evidence of extraterrestrial ribose and other bioessential sugars in primitive meteorites. The ¹³C-enriched stable carbon isotope compositions (δ¹³C _{vs. VPDB}) of the detected

SUBMITTER: Furukawa Y 

PROVIDER: S-EPMC6900709 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature