Table 4.

The accuracy and coverage of various contact-prediction methods in CASP 7 targets (both template-based and free-modeling targets) for top L/5 predictions of nonlocal contacts (|i - j| ≥ 24). This comparison serves as an approximate guide only because different methods have used different training sets which may contain sequences homologous to CASP 7 targets However, sequences of CASP 7 targets homologous to the SPINE-2D training set are removed. The number of targets for each method is different either because the method did not report the results for some proteins or because its reported predictions contain less than L/5 predictions of nonlocal contacts (|i - j| ≥ 24).

	BETAproa	PROFcona	SAM-T06a	SVMcona	SPINE-2D (ANN2)
No. b	62	62	78	78	82
Accu.c	20.0	13.7	15.2	16.6	25.9
Cov.d	3.3	5.1	4.1	2.9	4.5

^aPredictions are downloaded from CASP 7 website (http://predictioncenter.gc.ucdavis.edu/casp7/).

^bThe number of protein targets.

^cAccuracy.

^dCoverage.