Distribution and stable isotopic composition of amino acids from fungal peptaibiotics: assessing the potential for meteoritic contamination.

@article{Elsila2011DistributionAS,
  title={Distribution and stable isotopic composition of amino acids from fungal peptaibiotics: assessing the potential for meteoritic contamination.},
  author={Jamie E. Elsila and Michael Patrick Callahan and Daniel P. Glavin and Jason P. Dworkin and Hans Br{\"u}ckner},
  journal={Astrobiology},
  year={2011},
  volume={11 2},
  pages={
          123-33
        }
}
The presence of nonprotein α-dialkyl-amino acids such as α-aminoisobutyric acid (α-AIB) and isovaline (Iva), which are considered to be relatively rare in the terrestrial biosphere, has long been used as an indication of the indigeneity of meteoritic amino acids. However, recent work showing the presence of α-AIB and Iva in peptides produced by a widespread group of filamentous fungi indicates the possibility of a terrestrial biotic source for the α-AIB observed in some meteorites. We measured… 
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Indigenous aliphatic amines in the aqueously altered Orgueil meteorite
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