Table 2.
Substrate | Source |
---|---|
D-Alanine | Bacteria |
D-Serine | Synthesis by serine racemase |
D-Methionine | Food |
D-Leucine | Food/bacteria? |
D-Proline | Food/bacteria? |
D-Phenylalanine | Food/bacteria/by-product? |
D-Tyrosine | Food/bacteria/by-product? |
D-Citrulline | Food/bacteria/by-product? |