カワムラ　クニオ   KAWAMURA Kunio   川村　邦男    所属   広島修道大学  人間環境学部    職種   教授
言語種別	英語
発行・発表の年月	2005/01
形態種別	学術論文
査読	査読有り
標題	Consecutive elongation of alanine oligopeptides at the second time range under hydrothermal condition using a micro flow reactor system
執筆形態	共著
掲載誌名	J. Am. Chem. Soc.
掲載区分	国外
巻・号・頁	127(2),pp.522-523
担当範囲	Corresponding author
著者・共著者	◎Kunio Kawamura, Teruyuki Nishi, Tomofumi Sakiyama
概要	The prebiotic simulations of the submarine hydrothermal vent system suggest that hydrothermal reactions have played important roles for the emergence of life on the primitive earth. However, the yields of the direct formation of oligopeptides from amino acid monomers in these simulations were typically 0.1-1%. Thus, it should not be straightforwardly concluded that the proteinlike mole- cules have been easily accumulated through the primitive hydrothermal vent systems. This study elucidated for the first time that the elongation of (Ala)4 and (Ala)5 is possible in the presence of Ala monomer. The low efficiency of the formation in the previous simulation studies of the hydrothermal vent system is due to the termination reactions of the formation of DKP from (Ala)3 as well as (Ala)2.