Extraterrestrial amino acids identified in metal‐rich CH and CB carbonaceous chondrites from Antarctica
Abstract Carbonaceous chondrites contain numerous indigenous organic compounds and could have been an important source of prebiotic compounds required for the origin of life on Earth or elsewhere. Extraterrestrial amino acids have been reported in five of the eight groups of carbonaceous chondrites...
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crwiley:10.1111/maps.12063 2024-09-30T14:25:07+00:00 Extraterrestrial amino acids identified in metal‐rich CH and CB carbonaceous chondrites from Antarctica Burton, Aaron S. Elsila, Jamie E. Hein, Jason E. Glavin, Daniel P. Dworkin, Jason P. NASA Postdoctoral Program fellowship National Aeronautics and Space Administration (NASA) Astrobiology Institute and the Goddard Center for Astrobiology and the NASA Cosmochemistry and Exobiology Programs 2013 http://dx.doi.org/10.1111/maps.12063 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmaps.12063 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maps.12063 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Meteoritics & Planetary Science volume 48, issue 3, page 390-402 ISSN 1086-9379 1945-5100 journal-article 2013 crwiley https://doi.org/10.1111/maps.12063 2024-09-11T04:13:58Z Abstract Carbonaceous chondrites contain numerous indigenous organic compounds and could have been an important source of prebiotic compounds required for the origin of life on Earth or elsewhere. Extraterrestrial amino acids have been reported in five of the eight groups of carbonaceous chondrites and are most abundant in CI , CM , and CR chondrites but are also present in the more thermally altered CV and CO chondrites. We report the abundance, distribution, and enantiomeric and isotopic compositions of simple primary amino acids in six metal‐rich CH and CB carbonaceous chondrites that have not previously been investigated for amino acids: Allan Hills (ALH) 85085 ( CH 3), Pecora Escarpment (PCA) 91467 ( CH 3), Patuxent Range (PAT) 91546 ( CH 3), MacAlpine Hills (MAC) 02675 ( CB b), Miller Range (MIL) 05082 ( CB ), and Miller Range (MIL) 07411 ( CB ). Amino acid abundances and carbon isotopic values were obtained by using both liquid chromatography time‐of‐flight mass spectrometry and fluorescence, and gas chromatography isotope ratio mass spectrometry. The δ 13 C/ 12 C ratios of multiple amino acids fall outside of the terrestrial range and support their extraterrestrial origin. Extracts of CH chondrites were found to be particularly rich in amino acids (13–16 parts per million, ppm) while CB chondrite extracts had much lower abundances (0.2–2 ppm). The amino acid distributions of the CH and CB chondrites were distinct from the distributions observed in type 2 and 3 CM and CR chondrites and contained elevated levels of β‐, γ‐, and δ‐amino acids compared to the corresponding α‐amino acids, providing evidence that multiple amino acid formation mechanisms were important in CH and CB chondrites. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) MacAlpine Hills ENVELOPE(160.500,160.500,-84.217,-84.217) Miller Range ENVELOPE(157.000,157.000,-83.167,-83.167) Patuxent Range ENVELOPE(-64.500,-64.500,-84.716,-84.716) Pecora Escarpment ENVELOPE(-68.707,-68.707,-85.639,-85.639) Meteoritics & Planetary Science 48 3 390 402 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Carbonaceous chondrites contain numerous indigenous organic compounds and could have been an important source of prebiotic compounds required for the origin of life on Earth or elsewhere. Extraterrestrial amino acids have been reported in five of the eight groups of carbonaceous chondrites and are most abundant in CI , CM , and CR chondrites but are also present in the more thermally altered CV and CO chondrites. We report the abundance, distribution, and enantiomeric and isotopic compositions of simple primary amino acids in six metal‐rich CH and CB carbonaceous chondrites that have not previously been investigated for amino acids: Allan Hills (ALH) 85085 ( CH 3), Pecora Escarpment (PCA) 91467 ( CH 3), Patuxent Range (PAT) 91546 ( CH 3), MacAlpine Hills (MAC) 02675 ( CB b), Miller Range (MIL) 05082 ( CB ), and Miller Range (MIL) 07411 ( CB ). Amino acid abundances and carbon isotopic values were obtained by using both liquid chromatography time‐of‐flight mass spectrometry and fluorescence, and gas chromatography isotope ratio mass spectrometry. The δ 13 C/ 12 C ratios of multiple amino acids fall outside of the terrestrial range and support their extraterrestrial origin. Extracts of CH chondrites were found to be particularly rich in amino acids (13–16 parts per million, ppm) while CB chondrite extracts had much lower abundances (0.2–2 ppm). The amino acid distributions of the CH and CB chondrites were distinct from the distributions observed in type 2 and 3 CM and CR chondrites and contained elevated levels of β‐, γ‐, and δ‐amino acids compared to the corresponding α‐amino acids, providing evidence that multiple amino acid formation mechanisms were important in CH and CB chondrites. |
author2 |
NASA Postdoctoral Program fellowship National Aeronautics and Space Administration (NASA) Astrobiology Institute and the Goddard Center for Astrobiology and the NASA Cosmochemistry and Exobiology Programs |
format |
Article in Journal/Newspaper |
author |
Burton, Aaron S. Elsila, Jamie E. Hein, Jason E. Glavin, Daniel P. Dworkin, Jason P. |
spellingShingle |
Burton, Aaron S. Elsila, Jamie E. Hein, Jason E. Glavin, Daniel P. Dworkin, Jason P. Extraterrestrial amino acids identified in metal‐rich CH and CB carbonaceous chondrites from Antarctica |
author_facet |
Burton, Aaron S. Elsila, Jamie E. Hein, Jason E. Glavin, Daniel P. Dworkin, Jason P. |
author_sort |
Burton, Aaron S. |
title |
Extraterrestrial amino acids identified in metal‐rich CH and CB carbonaceous chondrites from Antarctica |
title_short |
Extraterrestrial amino acids identified in metal‐rich CH and CB carbonaceous chondrites from Antarctica |
title_full |
Extraterrestrial amino acids identified in metal‐rich CH and CB carbonaceous chondrites from Antarctica |
title_fullStr |
Extraterrestrial amino acids identified in metal‐rich CH and CB carbonaceous chondrites from Antarctica |
title_full_unstemmed |
Extraterrestrial amino acids identified in metal‐rich CH and CB carbonaceous chondrites from Antarctica |
title_sort |
extraterrestrial amino acids identified in metal‐rich ch and cb carbonaceous chondrites from antarctica |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/maps.12063 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmaps.12063 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maps.12063 |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) ENVELOPE(160.500,160.500,-84.217,-84.217) ENVELOPE(157.000,157.000,-83.167,-83.167) ENVELOPE(-64.500,-64.500,-84.716,-84.716) ENVELOPE(-68.707,-68.707,-85.639,-85.639) |
geographic |
Allan Hills MacAlpine Hills Miller Range Patuxent Range Pecora Escarpment |
geographic_facet |
Allan Hills MacAlpine Hills Miller Range Patuxent Range Pecora Escarpment |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Meteoritics & Planetary Science volume 48, issue 3, page 390-402 ISSN 1086-9379 1945-5100 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/maps.12063 |
container_title |
Meteoritics & Planetary Science |
container_volume |
48 |
container_issue |
3 |
container_start_page |
390 |
op_container_end_page |
402 |
_version_ |
1811643552100253696 |