Figure 3
![Figure 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2105-7-396/MediaObjects/12859_2006_Article_1135_Fig3_HTML.jpg)
Effect of P-value cutoff on the false positive error rate. Various set sizes (5, 50, and 100 sequences) were used to evaluate the rate of false positive. The suggested P-value cutoffs for a fixed false positive rate of 10% are 10-6 and 10-8 for 5 and 100 sequences, respectively.