Table 2.

Effect of Imm-H on dGTP levels in CCRF–CEM cells

Growth condition*	GTP	dGTP
	(nmol/5 × 106 cells†)
Control‡	1.86	ND§
dGuo	2.17	ND¶
dGuo + Imm-H	0.16	1.53

^*Cells were cultured for 24 hr in the presence of 10 μM dGuo with or without 10 μM Imm-H. 

^† Nucleotide content was determined from GTP and dGTP standards analyzed by using HPLC chromatography. Experiments were performed in duplicate with errors estimated at ±10%. 

^‡ Result from Bantia et al. (22). 

^§¶ Not detectable (limit of detection = 0.2 and 0.08, respectively).