Extraterrestrial ribose and other sugars in primitive meteorites
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- Yoshihiro Furukawa
- Department of Earth Science, Tohoku University, 980-8578 Sendai, Japan;
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- Yoshito Chikaraishi
- Institute of Low Temperature Science, Hokkaido University, 060-0819 Sapporo, Japan;
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- Naohiko Ohkouchi
- Biogeochemistry Program, Japan Agency for Marine-Earth Science and Technology, 237-0061 Yokosuka, Japan;
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- Nanako O. Ogawa
- Biogeochemistry Program, Japan Agency for Marine-Earth Science and Technology, 237-0061 Yokosuka, Japan;
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- Daniel P. Glavin
- Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771
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- Jason P. Dworkin
- Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771
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- Chiaki Abe
- Department of Earth Science, Tohoku University, 980-8578 Sendai, Japan;
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- Tomoki Nakamura
- Department of Earth Science, Tohoku University, 980-8578 Sendai, Japan;
説明
<jats:title>Significance</jats:title> <jats:p>Ribose is an essential sugar for present life 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 components of proteins and nucleic acids. Among the constituent molecular classes of proteins and nucleic acids (i.e., amino acids, nucleobases, phosphate, and ribose/deoxyribose), the presence of ribose and deoxyribose in space remains unclear. Here we provide evidence of extraterrestrial ribose and other bioessential sugars in primitive meteorites. Meteorites were carriers of prebiotic organic molecules to the early Earth; thus, the detection of extraterrestrial sugars in meteorites implies the possibility that extraterrestrial sugars may have contributed to forming functional biopolymers like RNA.</jats:p>
収録刊行物
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- Proceedings of the National Academy of Sciences
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Proceedings of the National Academy of Sciences 116 (49), 24440-24445, 2019-11-18
Proceedings of the National Academy of Sciences
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詳細情報 詳細情報について
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- CRID
- 1360286993838302592
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- ISSN
- 10916490
- 00278424
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- データソース種別
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- Crossref
- KAKEN