TABLE 2.

Ribonucleotide incorporation by pol μ with mixed nucleotide pools

Template	Complementary nucleotide (mM)		r/da	% Ribonucleotide incorporationb
	[dNTP]	[rNTP]
C	0.025	0.025	1	26
	0.025	0.125	5	59
	0.025	0.500	20	81
	0.005c	0.480c	96	93.2 ± 1.1
G	0.022c	0.210c	10	77.5 ± 0.8
A	0.023c	0.480c	21	70.9 ± 4.5
T	0.013c	2.800c	215	92.2 ± 1.2

^a[rNTP]/[dNTP].

^bDetermined as for Fig. 2; when noted, standard deviation of the mean was determined from triplicate experiments.

^cNucleotide concentrations averaged from a variety of mammalian cell types (25).