Indigenous Amino Acids in Iron Meteorites

Elsila, J E ; Dworkin, J P ; Glavin, D P ; Johnson, N M

关键词: CARBONACEOUS CHONDRITES;    IRON METEORITES;    UREILITES;    AMINO ACIDS;    BIOLOGICAL EVOLUTION;    EXOBIOLOGY;    LIFE SCIENCES;    ABUNDANCE;    METEORITES;    MONOMERS;    PROTEINS;    CARBON;   

RP-ID  :  GSFC-E-DAA-TN52492

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Understanding the organic content of meteorites and the potential delivery of molecules relevant to the origin of life on Earth is an important area of study in astrobiology. There have been many studies of meteoritic organics, with much focus on amino acids as monomers of proteins and enzymes essential to terrestrial life. The majority of these studies have involved analysis of carbonaceous chondrites, primitive meteorites containing approx. 3-5 wt% carbon. Amino acids have been observed in varying abundances and distributions in representatives of all eight carbonaceous chondrite groups, as well as in ungrouped carbonaceous chondrites, ordinary and R chondrites, ureilites, and planetary achondrites [1 and references therein].