ROS	reactive oxygen species
NER	nucleotide repair
BER	base excision repair
MMR	mismatch repair
HR	homologous recombination repair
NHEJ	non-homologous end joining
ER	endoplasmic reticulum
SOD	superoxide dismutase
CAT	catalase
GSH-Px	glutathione peroxidase
GSH	glutathione
8-OHdG	8-hydroxy-2′-deoxyguanosine
MNNG	N-methyl-N′-nitro-N-nitrosoguanidine
MNU	N-methyl-N-nitrosourea
MMS	methyl methanesulfonate
MGMT	O6-Methylguanine DNA methyltransferase
FeKGDs	ALKBH α-ketoglutarate Fe(II) dioxygenases
NiS	nickel sulfide
DNMT1	DNA methyltransferase 1
OGG1	8-oxoguanine DNA glycosylase
APE1	AP endonuclease
LIG1	DNA ligase 1
XRCC1	X-ray repair cross-complementing protein 1
Fpg	formamidopyrimidine-DNA glycosylase
AlkA	3-methyladenine-DNA glycosylase II
XP	xeroderma pigmentosum
ERCC1	excision repair cross-complementation group 1
PCNA	proliferating cell nuclear antigen
PARP	poly ADP-ribose polymerase
GADD45A	DNA-damage-inducible protein 45 alpha
MLH	mutL homolog
DSB	double-strand breaks
BRCA1	breast cancer 1
RAD51	human homolog of S. cerevisiae RAD50
f FANCD2	anconi anemia group D2 protein
PALB2	partner and localizer of BRCA2
XRCC4	X-ray repair cross complementing 4
DNA-PK	DNA-dependent protein kinase
CHO	Chinese hamster ovary cells