. 1997 Mar 18;94(6):2522–2527. doi: 10.1073/pnas.94.6.2522

Table 4.

Thymocyte dGTP and dCTP concentrations in PNP-deficient mice

Strain	dGTP, pmol/10⁶ cells	dCTP, pmol/10⁶ cells	Ratio to C57BL/6J
Strain	dGTP, pmol/10⁶ cells	dCTP, pmol/10⁶ cells	dGTP	dCTP
C57BL/6J	1.63 ± 0.82^a	4.52 ± 1.13
B6-NPE	1.84 ± 0.86^a	4.54 ± 0.65	1.13	1.00
B6-NPF	8.72 ± 4.10^b	5.32 ± 0.70	5.35	1.18
B6-NPG	4.15 ± 0.23^b	3.60 ± 0.95	2.55	0.80

Three mice were examined for each strain except B6-NPF (n = 4). Male mice were 2 months of age (C57BL/6J, B6-NPE, and B6-NPF) or 4 months of age (B6-NPG). Statistical comparison was male by the Student–Neumann–Keuls (P = 0.05) test; letters represent significant differences. There were no significant differences among strains for dCTP.