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Prebiotic synthesis of methionine and other sulfur-containing organic compounds on the primitive earth: a contemporary reassessment based on an unpublished 1958 stanley miller experiment
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lazcano, Antonio Glavin, Daniel P. Callahan, Michael P. Cleaves Sr., H. James Dworkin, Jason P. Parker, Eric T. |
| Copyright Year | 2010 |
| Description | Original extracts from an unpublished 1958 experiment conducted by the late Stanley L. Miller were recently found and analyzed using modern state-of-the-art analytical methods. The extracts were produced by the action of an electric discharge on a mixture of methane (CH4), hydrogen sulfide (H2S), ammonia (NH3), and carbon dioxide (CO2). Racemic methionine was farmed in significant yields, together with other sulfur-bearing organic compounds. The formation of methionine and other compounds from a model prebiotic atmosphere that contained H2S suggests that this type of synthesis is robust under reducing conditions, which may have existed either in the global primitive atmosphere or in localized volcanic environments on the early Earth. The presence of a wide array of sulfur-containing organic compounds produced by the decomposition of methionine and cysteine indicates that in addition to abiotic synthetic processes, degradation of organic compounds on the primordial Earth could have been important in diversifying the inventory of molecules of biochemical significance not readily formed from other abiotic reactions, or derived from extraterrestrial delivery. |
| File Size | 1213649 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110007217 |
| Archival Resource Key | ark:/13960/t4pk5cg4m |
| Language | English |
| Publisher Date | 2010-01-01 |
| Access Restriction | Open |
| Subject Keyword | Inorganic, Organic And Physical Chemistry Methane Hydrogen Sulfide Ammonia Cysteine Electric Discharges Carbon Dioxide Methionine Biochemistry Synthesis Chemistry Sulfur Earth Planet Organic Compounds Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
