. Author manuscript; available in PMC: 2016 Jun 2.

Published in final edited form as: Chem Res Toxicol. 2014 Feb 13;27(4):674–682. doi: 10.1021/tx500011m

Table 1.

Parameters of DMPO-adducts formed from nucleosides following treatment with hydralazine (125 μM) and Cu²⁺(25 μM) at room temperature.

Substrate	Hyperfine Coupling Constants, G			Assignment
	a^N	a^H	a^N
2′-deoxyadenosine	15.42	19.95	2.58	N-centered, exocyclic NH₂

2′-deoxycytidine	15.38	18.95	2.02	N-centered

Thymidine	15.88	19.5	2.71	N-centered

2′-deoxyguanosine	15.6	20.27	2.56	N-centered, N₃ position

ESR-Spin trapping studies were carried out as described in the Methods Section.