| ATM | Ataxia telangiectasia-mutated |
| ATR | Ataxia telangiectasia-mutated and Rad3-related |
| CHR8 | chromatin remodeling 8 |
| CPD | cyclobutane pyrimidine dimer |
| CRY | cryptochrome |
| CRY-DASH | Cryptochrome-Drosophila, Arabidopsis, Synechocystis, Human proteins |
| DMRL | 6,7-dimethyl-8-ribityl-lumazin |
| DSB | double strand breaks |
| FAD | flavin adenine dinucleotide |
| MTHF | 5,10-methenyltetrahydrofolate |
| NER | nucleotide excision repair |
| PHR | photolyase homology region |
| ROS | reactive oxygen species |
| SSB | single strand break |
| UV | ultraviolet |
| 6-4 PP | (6-4) pyrimidine–pyrimidone photoproduct |
| 8-HDF | 8-hydroxydeazaflavin |