Table 1:

Nucleobase sequence and mass spectrometry characterization of synthetic DNA/DpC oligodeoxynucleotides.

	Sequence	Expected mass (Da)	Observed mass (Da)
A	5′-d(TTC CFC GTC ACG ACG TT)-3′	5125.4	5124.6
B	5′-d(TTC CFG GTC ACG ACG TT)-3′	5165.4	5164.5
C	5′-d(TTC CFT GTC ACG ACG TT)-3′	5140.4	5139.6
D	5′-d(TTC AFA GTC ACG ACG TT)-3′	5173.4	5172.6
E	5′-d(TTC GFA GTC ACG ACG TT)-3′	5189.4	5188.6
F	5′-d(TTC TFA GTC ACG ACG TT)-3′	5164.4	5163.6
G	5′-d(TTC CFA GTC ACG ACG TT)-3′	5149.3	5149.4
H	5’-d(TTC CXC GTC ACG ACG TT)-3’	5967.2	5966.2
I	5’-d(TTC CXG GTC ACG ACG TT)-3’	6007.3	6006.2
J	5’-d(TTC CXT GTC ACG ACG TT)-3’	5982.2	5981.6
K	5’-d(TTC AXA GTC ACG ACG TT)-3’	6015.3	6014.5
L	5’-d(TTC GXA GTC ACG ACG TT)-3’	6031.3	6030.0
M	5’-d(TTC TXA GTC ACG ACG TT)-3’	6006.3	6005.0
N	5’-d(TTC CXA GTC ACG ACG TT)-3’	5989.2	5988.2

^F=5-formyl-dC

^X=5-formyl-dC crosslinked to NH₂-GGG KGL GK*G GA, where K*=oxy-lysine