A new family of extraterrestrial amino acids in the Murchison meteorite
Level 5 - mechanism / opinion, no new human data
Level 5 by design analogy (bench research / laboratory chemical analysis).
OpenAlex W2601370990 · doi:10.1038/s41598-017-00693-9
What was done
Chemical analysis of organic compounds in the Murchison carbonaceous meteorite was performed, alongside a complementary laboratory synthesis experiment to evaluate whether aldehydes and ammonia could produce these compounds under meteorite parent-body conditions.
What was found
Ten new amino acids were identified in the meteorite, including a new family of nine hydroxy amino acids predominantly composed of C3 and C4 structural isomers. Complementary experiments demonstrated potential synthesis from aldehydes and ammonia, indicating pathways beyond the Strecker reaction. No quantitative concentrations or abundances are reported in the abstract.
Why it matters
The findings expand the catalog of known extraterrestrial organics and provide evidence for alternative prebiotic chemical synthesis pathways on meteorite parent bodies.
Limits
The abstract does not provide quantitative concentrations, sample mass, analytical detection limits, or specific controls used to rule out terrestrial contamination.
Cited by
- supports The molecular building blocks of DNA and proteins, such as nucleobases and amino acids, have been detected on meteorites.