Tags: Chemical Compound, Chemical Substance.
Isovaline is a rare amino acid transported to earth by the Murchison meteorite which landed in Australia in 1969. The discovery of isovaline in the biosphere demonstrates an extraterrestrial origin of amino acids and has been linked to the homochirality of life on earth suggesting a role in the origin of life.The structure of isovaline is similar to the amino acids GABA and glycine the chief inhibitory neurotransmitters in the mammalian central nervous system.