Table 1.

Base-Call Accuracy as a Function of Target Complexity, Probe Length, and Ligation Method

Gene or fragment
8-mer535-bp cftr 1.2-kb HIV pol 2.5-kb cytochrome b 5.4-kb φX174
9-mer
Enzymatic99.0 (0.2)98.2 (0.1)88.9 (1.3)73.9 (4.1)
99.8 (0.0)99.9 (0.0)94.5 (0.3)85.2 (0.5)
Chemical99.0 (0.4)96.1 (0.5)87.8 (1.5)69.0 (2.8)
100.0 (0.0) *99.5 (0.0)93.4 (0.2)89.0 (0.4)

[i] Percentage of correct calls followed by the percentage of incorrect calls in parentheses.

[ii] Enzymatic ligation employed standard T4 DNA ligase conditions. A confidence threshold of 1.15 was used for the base-calling. The analysis procedures are described in Methods. No calls + incorrect calls + correct calls = 100%. (*) s.d. = 0.1% (n = 4 experiments).