4-NQO	4-Nitroquinoline 1-oxide
BER	Base excision repair
CDK	Cyclin-dependent kinase
DDR	DNA damage response
DSB	Double-strand break
DUSP	Dual specificity phosphatase
HR	Homologous recombination
HU	Hydroxyurea
IR	Ionizing radiation
MEFs	Mouse embryonic fibroblasts
MMR	Mismatch repair
MMS	Methyl methanesulfonate
NER	Nucleotide excision repair
NHEJ	Non-homologous end joining
PIP	PP1’s interacting proteins
PPP	Phosphoprotein phosphatase
RPA	Replication protein A complex
SAC	Spindle assemble checkpoint
SPB	Spindle pole body
SSB	Single-strand break
ssDNA	Single-strand DNA
UV	Ultraviolet radiation