干旱区生态环境知识资源中心(Arid): Extraterrestrial ribose and other sugars in primitive meteorites

Arid

DOI	10.1073/pnas.1907169116
	Extraterrestrial ribose and other sugars in primitive meteorites
	Furukawa, Yoshihiro 1; Chikaraishi, Yoshito 2,3; Ohkouchi, Naohiko 3; Ogawa, Nanako O.3; Glavin, Daniel P.4; Dworkin, Jason P.4; Abe, Chiaki 1; Nakamura, Tomoki 1
通讯作者	Furukawa, Yoshihiro
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
出版年	2019
卷号	116 期号:49 页码:24440-24445
英文摘要	Sugars are essential molecules for all terrestrial biota working in many biological processes. Ribose is particularly essential 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 key building blocks of life, i.e., amino acids, nucleobases, and phosphate. An amino acid has also been identified in a cometary sample. However, the presence of extraterrestrial bioimportant sugars remains unclear. We analyzed sugars in 3 carbonaceous chondrites and show evidence of extraterrestrial ribose and other bioessential sugars in primitive meteorites. The C-13-enriched stable carbon isotope compositions (delta C-13(vs. )VPDB) of the detected sugars show that the sugars are of extraterrestrial origin. We also conducted a laboratory simulation experiment of a potential sugar formation reaction in space. The compositions of pentoses in meteorites and the composition of the products of the laboratory simulation suggest that meteoritic sugars were formed by formose-like processes. The mineral compositions of these meteorites further suggest the formation of these sugars both before and after the accretion of their parent asteroids. Meteorites were carriers of prebiotic organic molecules to the early Earth; thus, the detection of extraterrestrial sugars in meteorites establishes the existence of natural geological routes to make and preserve them as well as raising the possibility that extraterrestrial sugars contributed to forming functional biopolymers like RNA on the early Earth or other primitive worlds.
英文关键词	meteorite carbohydrate exogenous delivery ribose RNA
类型	Article
语种	英语
国家	Japan ; USA
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000500804600016
WOS关键词	AMINO-ACIDS ; CARBONACEOUS METEORITES ; CARBOHYDRATE POLYMERS ; DESERT RECLAMATION ; ORGANIC-COMPOUNDS ; MURCHISON ; DERIVATIVES ; CHONDRITES ; EVOLUTION ; EXCESSES
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
EI主题词	2019-12-03
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311537
作者单位	1.Tohoku Univ, Dept Earth Sci, Sendai, Miyagi 9808578, Japan; 2.Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido 0600819, Japan; 3.Japan Agcy Marine Earth Sci & Technol, Biogeochem Program, Yokosuka, Kanagawa 2370061, Japan; 4.NASA, Solar Syst Explorat Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
推荐引用方式 GB/T 7714	Furukawa, Yoshihiro,Chikaraishi, Yoshito,Ohkouchi, Naohiko,et al. Extraterrestrial ribose and other sugars in primitive meteorites[J],2019,116(49):24440-24445.
APA	Furukawa, Yoshihiro.,Chikaraishi, Yoshito.,Ohkouchi, Naohiko.,Ogawa, Nanako O..,Glavin, Daniel P..,...&Nakamura, Tomoki.(2019).Extraterrestrial ribose and other sugars in primitive meteorites.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(49),24440-24445.
MLA	Furukawa, Yoshihiro,et al."Extraterrestrial ribose and other sugars in primitive meteorites".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.49(2019):24440-24445.