DNA	Deoxyribonucleic acid
S phase	Synthesis phase
ssDNA	Single stranded DNA
DSB	Double strand breaks
RPA	Replication protein A
ATR	Ataxia telangiectasia and Rad3-related protein
ROS	Reactive oxygen species
dNTP	Deoxynucleotide triphosphate
RNA	Ribonucleic acid
RNase H	Ribonuclease H
DDR	DNA damage response
Chk1	Checkpoint kinase 1
MRN	Mre11-Rad50-Nbs1
Chk2	Checkpoint kinase 2
H2AX	H2A histone family member X
DDT	DNA damage tolerance
LOH	Loss of heterozygosity
CFS	Common fragile site
ERFS	Early replication fragile site
CNV	Copy number variations
PARP1	Poly(ADP-ribose) polymerase 1
GOF p53	Gain of function p53
CTR	Constant timing regions
TTR	Timing transition regions
MEF	Mouse embryonic fibroblasts
BrdU	Bromodeoxyuridine
SNP	Single nucleotide polymorphism
NHEJ	Non-homologous end-joining
RUNX1	Runt-related transcription factor 1
p53	Tumor protein P53
RB1	Retinoblastoma 1
Bcl2	B-cell lymphoma 2
Rif1	Replication timing regulatory factor 1
MCM	Minichromosome maintenance
ALL	Acute lymphoblastic leukemia