Table 2.

Across experiment comparison of protein subsets associated with systematic error

	Not in Krogan et al. [11]	In Krogan et al. [11]
Not in Gavin et al. [10]	480	181
In Gavin et al. [10]	40	29
	P = 1.6 × 10-2	Odds ratio = 1.92

Like Table 1, this table also compares the proteins affected by a reciprocity artifact from the datasets of Gavin and coworkers [10] and Krogan and colleagues [11]. The only exception is that the proteins compared were those identified by the binomial tests as having out-degree greater than in-degree. Compared with Table 1, the association between the two datasets is relatively weaker in terms of both the P value and odds-ratio.