@article{Martins:2008:10.1016/j.epsl.2008.03.026,
author = {Martins, Z and Botta, O and Fogel, ML and Sephton, MA and Glavin, DP and Watson, JS and Dworkin, JP and Schwartz, AW and Ehrenfreund, P},
doi = {10.1016/j.epsl.2008.03.026},
journal = {EARTH PLAN SCI LETT},
pages = {130--136},
title = {Extraterrestrial nucleobases in the Murchison meteorite},
url = {http://dx.doi.org/10.1016/j.epsl.2008.03.026},
volume = {270},
year = {2008}
}
TY - JOUR
AB - Carbon-rich meteorites, carbonaceous chondrites, contain many biologically relevant organic molecules and delivered prebiotic material to the young Earth. We present compound-specific carbon isotope data indicating that measured purine and pyrimidine compounds are indigenous components of the Murchison meteorite. Carbon isotope ratios for uracil and xanthine of δ13C=+44.5‰ and +37.7‰, respectively, indicate a non-terrestrial origin for these compounds. These new results demonstrate that organic compounds, which are components of the genetic code in modern biochemistry, were already present in the early solar system and may have played a key role in life's origin.
AU - Martins,Z
AU - Botta,O
AU - Fogel,ML
AU - Sephton,MA
AU - Glavin,DP
AU - Watson,JS
AU - Dworkin,JP
AU - Schwartz,AW
AU - Ehrenfreund,P
DO - 10.1016/j.epsl.2008.03.026
EP - 136
PY - 2008///
SN - 0012-821X
SP - 130
TI - Extraterrestrial nucleobases in the Murchison meteorite
T2 - EARTH PLAN SCI LETT
UR - http://dx.doi.org/10.1016/j.epsl.2008.03.026
VL - 270
ER -