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Record Details

Record 4 of 1134
Unusual stable isotope ratios in amino acid and carboxylic acid extracts from the Murchison meteorite
External Online Source: doi:10.1038/326477a0
Author and Affiliation:
Epstein, S.(California Inst. of Tech., Pasadena, CA, United States)
Krishnamurthy, R. V.(California Institute of Technology, Pasadena, United States)
Cronin, J. R.(California Inst. of Tech., Pasadena, CA, United States)
Pizzarello, S.(California Inst. of Tech., Pasadena, CA, United States)
Yuen, G. U.(Arizona State University, Tempe, United States)
Abstract: The isotopic composition of hydrogen, nitrogen, and carbon in amino acid and monocarboxylic acid extracts from the Murchison meteorite has been determined. The unusually high D/H and N-15/N-14 ratios in the amino acid fraction are uniquely characteristic of known interstellar organic materials. The delta D value of the monocarboxylic acid fraction is lower but still consistent with an interstellar origin. These results confirm the extraterrestrial origin of both classes of compound and provide the first evidence suggesting a direct relationship between the massive organosynthesis occurring in interstellar clouds and the presence of prebiotic compounds in primitive planetary bodies.
Publication Date: Apr 02, 1987
Document ID:
19870051638
(Acquired Nov 28, 1995)
Accession Number: 87A38912
Subject Category: SPACE BIOLOGY
Document Type: Journal Article
Publication Information: Nature (ISSN 0028-0836); 326; 477-479
Publisher Information: United Kingdom
Contract/Grant/Task Num: NAG9-46; NSG-7255
Financial Sponsor: NASA; United States
Organization Source: California Inst. of Tech.; Pasadena, CA, United States
Arizona State Univ.; Tempe, AZ, United States
Description: 3p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: AMINO ACIDS; CARBOXYLIC ACIDS; CONCENTRATION (COMPOSITION); ISOTOPES; MURCHISON METEORITE; BIOLOGICAL EVOLUTION; DEUTERIUM; INTERSTELLAR MATTER; NITROGEN 15
Imprint And Other Notes: Nature (ISSN 0028-0836), vol. 326, April 2, 1987, p. 477-479.
Availability Source: Other Sources
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