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The amino acid composition of the sutter's mill carbonaceous chondrite
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cooper, G. Jenniskens, P. Dworkin, J. P. Yin, Q. Z. Elsila, J. E. Burton, A. S. Glavin, D. P. |
| Copyright Year | 2012 |
| Description | In contrast to the Murchison meteorite which had a complex distribution of amino acids with a total C2 to Cs amino acid abundance of approx.14,000 parts-per-billion (ppb) [2], the Sutters Mill meteorite was found to be highly depleted in amino acids. Much lower abundances (approx.30 to 180 ppb) of glycine, beta-alanine, L-alanine and L-serine were detected in SM2 above procedural blank levels indicating that this meteorite sample experienced only minimal terrestrial amino acid contamination after its fall to Earth. Carbon isotope measurements will be necessary to establish the origin of glycine and beta-alanine in SM2. Other non-protein amino acids that are rare on Earth, yet commonly found in other CM meteorites such as aaminoisobutyric acid (alpha-AIB) and isovaline, were not identified in SM2. However, traces of beta-AIB (approx.1 ppb) were detected in SM2 and could be" extraterrestrial in origin. The low abundances of amino acids in the Sutter's Mill meteorite is consistent with mineralogical evidence that at least some parts of the Sutter's Mill meteorite parent body experienced extensive aqueous and/or thermal alteration. |
| File Size | 334599 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120017947 |
| Archival Resource Key | ark:/13960/t1hj1hq07 |
| Language | English |
| Publisher Date | 2012-08-12 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Proteins Alanine Depletion Meteorites Mineralogy Murchison Meteorite Amino Acids Abundance Carbonaceous Chondrites Carbon Isotopes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
