Table 3.

Confidence score thresholds for three classes of protein–protein interactions.

Classes	Confidence Score	Description
class 1	0 ≥ – ≤ 0.4	The interaction confidence threshold is low.
class 2	> 0.4 – ≤ 0.7	A score in this range may indicate a falsely labelled pair.(for instance, a score of 0.5 suggests that nearly every second interaction may be incorrectly labelled as an interacting pair).
class 3	> 0.7 – ≤ 1	This range shows highly interactive protein pairs based on experimental and theoretical evidence. A score of one indicates full confidence in the protein pair’s interactivity.