A new family of extraterrestrial amino acids in the Murchison meteorite

Abstract The occurrence of extraterrestrial organic compounds is a key for understanding prebiotic organic synthesis in the universe. In particular, amino acids have been studied in carbonaceous meteorites for almost 50 years. Here we report ten new amino acids identified in the Murchison meteorite,...

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Autores principales:	Toshiki Koga, Hiroshi Naraoka
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/906bf9968e144df3aa268cc41fc53cbb
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spelling	oai:doaj.org-article:906bf9968e144df3aa268cc41fc53cbb2021-12-02T15:05:44ZA new family of extraterrestrial amino acids in the Murchison meteorite10.1038/s41598-017-00693-92045-2322https://doaj.org/article/906bf9968e144df3aa268cc41fc53cbb2017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00693-9https://doaj.org/toc/2045-2322Abstract The occurrence of extraterrestrial organic compounds is a key for understanding prebiotic organic synthesis in the universe. In particular, amino acids have been studied in carbonaceous meteorites for almost 50 years. Here we report ten new amino acids identified in the Murchison meteorite, including a new family of nine hydroxy amino acids. The discovery of mostly C3 and C4 structural isomers of hydroxy amino acids provides insight into the mechanisms of extraterrestrial synthesis of organic compounds. A complementary experiment suggests that these compounds could be produced from aldehydes and ammonia on the meteorite parent body. This study indicates that the meteoritic amino acids could be synthesized by mechanisms in addition to the Strecker reaction, which has been proposed to be the main synthetic pathway to produce amino acids.Toshiki KogaHiroshi NaraokaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Toshiki Koga Hiroshi Naraoka A new family of extraterrestrial amino acids in the Murchison meteorite
description	Abstract The occurrence of extraterrestrial organic compounds is a key for understanding prebiotic organic synthesis in the universe. In particular, amino acids have been studied in carbonaceous meteorites for almost 50 years. Here we report ten new amino acids identified in the Murchison meteorite, including a new family of nine hydroxy amino acids. The discovery of mostly C3 and C4 structural isomers of hydroxy amino acids provides insight into the mechanisms of extraterrestrial synthesis of organic compounds. A complementary experiment suggests that these compounds could be produced from aldehydes and ammonia on the meteorite parent body. This study indicates that the meteoritic amino acids could be synthesized by mechanisms in addition to the Strecker reaction, which has been proposed to be the main synthetic pathway to produce amino acids.
format	article
author	Toshiki Koga Hiroshi Naraoka
author_facet	Toshiki Koga Hiroshi Naraoka
author_sort	Toshiki Koga
title	A new family of extraterrestrial amino acids in the Murchison meteorite
title_short	A new family of extraterrestrial amino acids in the Murchison meteorite
title_full	A new family of extraterrestrial amino acids in the Murchison meteorite
title_fullStr	A new family of extraterrestrial amino acids in the Murchison meteorite
title_full_unstemmed	A new family of extraterrestrial amino acids in the Murchison meteorite
title_sort	new family of extraterrestrial amino acids in the murchison meteorite
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/906bf9968e144df3aa268cc41fc53cbb
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A new family of extraterrestrial amino acids in the Murchison meteorite

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