Send to

Choose Destination
Proc Natl Acad Sci U S A. 1972 Apr;69(4):809-11.

Nonprotein amino acids from spark discharges and their comparison with the murchison meteorite amino acids.

Author information

Department of Chemistry, University of California, San Diego, La Jolla, Calif. 92037.


All the nonprotein amino acids found in the Murchison meteorite are products of the action of electric discharge on a mixture of methane, nitrogen, and water with traces of ammonia. These amino acids include alpha-amino-n-butyric acid, alpha-aminoisobutyric acid, norvaline, isovaline, pipecolic acid, beta-alanine, beta-amino-n-butyric acid, beta-aminoisobutyric acid, gamma-aminobutyric acid, sarcosine, N-ethylglycine, and N-methylalanine. In addition, norleucine, alloisoleucine, N-propylglycine, N-isopropylglycine, N-methyl-beta-alanine, N-ethyl-beta-alanine alpha,beta-diaminopropionic acid, isoserine, alpha,gamma-diaminobutyric acid, and alpha-hydroxy-gamma-aminobutyric acid are produced by the electric discharge, but have not been found in the meteorite.

Supplemental Content

Full text links

Icon for PubMed Central
Loading ...
Support Center