L isomer
The L isomer of amino acids is the 'living isomer' as it is the only naturally occuring optical isomer. Every amino acid (apart from glycine) has steriochemistry as there are four different groups attached to the central chiral alpha carbon [1].
References
- ↑ Berg J, Tymoczko J and Stryer L (2015) Biochemistry, Eighth edition, New York: Freeman and Company