| 6mA | N6-methyl-2′-deoxyadenine |
| 5mC | 5-methyl-2′-deoxycytosine |
| CS | citrate synthase |
| Dam methylase or DNA adenine methyltransferase | site-specific DNA-methyltransferase (adenine-specific) |
| PIF | phytochrome interacting factor |
| SAM | S-adenosyl-L-methionine |
| SAH | S-adenosyl-L-homocysteine |
| TCA cycle | tricarboxylic acid cycle |