Kvenvolden K A, Lawless J G, Ponnamperuma C
Exobiology Division, Ames Research Center, NASA, Moffett Field, California 94305.
Proc Natl Acad Sci U S A. 1971 Feb;68(2):486-90. doi: 10.1073/pnas.68.2.486.
Twelve nonprotein amino acids appear to be present in the Murchison meteorite. The identity of eight of them has been conclusively established as N-methylglycine, beta-alanine, 2-methylalanine, alpha-amino-n-butyric acid, beta-amino-n-butyric acid, gamma-amino-n-butyric acid, isovaline, and pipecolic acid. Tentative evidence is presented for the presence of N-methylalanine, N-ethylglycine, beta-aminoisobutyric acid, and norvaline. These amino acids appear to be extraterrestrial in origin and may provide new evidence for the hypothesis of chemical evolution.
默奇森陨石中似乎存在12种非蛋白质氨基酸。其中8种已被明确鉴定为N-甲基甘氨酸、β-丙氨酸、2-甲基丙氨酸、α-氨基正丁酸、β-氨基正丁酸、γ-氨基正丁酸、异缬氨酸和哌啶酸。有初步证据表明存在N-甲基丙氨酸、N-乙基甘氨酸、β-氨基异丁酸和正缬氨酸。这些氨基酸似乎起源于地球之外,可能为化学进化假说提供新的证据。