BER	base excision repair
CS	Cockayne syndrome
cdA	5′,8-cyclo-2′-deoxyadenosine
cdG	5′,8-cyclo-2′-deoxyguanosine
cPu	purine 5′,8-cyclo-2′-deoxynucleoside
dA	2′-deoxyadenosine
dG	2′-deoxyguanosine
LC–MS/MS	liquid chromatography tandem mass spectrometry
LEA	Long–Evans Cinnamon
NER	nucleotide excision repair
ODNs	oligodeoxynucleotides
ROS	reactive oxygen species
SCID	severe combined immunodeficient
Pol	DNA polymerase
Dpo4	DNA polymerase IV of Sulfolobus solfataricus
LIG I	DNA ligase I
TBDMS	tert-butyldimethylsilyl
XP	xeroderma pigmentosum