| ATR | ATR serine/threonine kinase also known as ataxia telangiectasia and Rad3-related protein |
| Cdk1 | Cyclin-dependent kinase 1 |
| DNA2 | DNA replication helicase/nuclease 2 |
| DNA-PKCS | Catalytic subunit of DNA-dependent protein kinase |
| RPA | Replication protein A |
| FEN1 | Flap endonuclease 1 |
| WRN | Werner syndrome ATP-dependent helicase |
| BLM | Bloom syndrome protein |
| Pol γ, δ | DNA polymerase γ, δ |
| MRN | Mre11-Rad50-Nbs1 complex |
| NAM7 | Nuclear accommodation of mitochondria 7 |
| LP-BER | Long-Patch base excision repair |
| PIF1 | Petite integration frequency 1 |
| And-1 | Acidic nucleoplasmic DNA-binding protein 1 |
| RECQ1 | ATP-dependent DNA helicase Q1 |
| TOP1, 2 | DNA topoisomerase I, II |
| ss, ds | Single-stranded, double-stranded |
| MGME1 | Mitochondrial genome maintenance exonuclease 1 |
| mtSSB | Mitochondrial single stranded DNA-binding protein |
| SUV3 | Suppressor of var1 3-like |
| DSB | DNA double-strand break |
| G4 | Guanine quartet |
| U2OS | Osteosarcoma cell line |
| HeLa | Ovarian cancer cell line |
| DSBR | DNA double-strand break repair |
| MMR | Mismatch repair |
| ICL | DNA interstrand cross-link |
| NHEJ | Non-homologous end joining |
| HRR | Homologous recombination repair |
| Sgs1 | Slow growth suppressor 1 |
| ExoI | Exonuclease I |
| SRCAP | Snf2-related CREB-binding protein activator protein |
| CtIP | C-terminal binding interacting protein |
| SMARCAD1 | SWI/SNF-related matrix associated actin-dependent regulator of chromatin subfamily A containing DEAD/H box1 |
| Swi/Snf | Switch/sucrose non-fermentable |
| BRCA1, 2 | Breast cancer 1, 2 |
| RAD51 | Recombinase in homologous recombination |
| HELB | DNA helicase B |
| RMI1-2 | RecQ mediated genome instability 1–2 |
| Fun30 | Function unknown now 30 |
| γH2AX | Phosphorylated variant of the H2A histone |
| FA | Fanconi anemia |
| SP-, LP-BER | Short patch, long patch base excision repair |
| EXOG | 5′ exo/endonuclease |
| SSBR | DNA single-strand break repair |
| H-RAS | Harvey rat sarcoma viral oncogene homolog |
| K-RAS | Kirsten rat sarcoma viral oncogene homolog |
| PARP1 | Poly(ADP-ribose) polymerase 1 |
| TP53 | Tumor protein p53 |