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Table 1 Description of the selected nine CASP6 contact predictors.

From: Contact prediction in protein modeling: Scoring, folding and refinement of coarse-grained models

Contact predictors

Method

Input data

Accuracy [%]

Coverage [%]

Baker

Neural network

Contact predictions from 24 servers, predicted by JUFO secondary structure, amino acid properties, PSI-BLAST generated PSSM matrix, length of a protein sequence

25.5

3.7

PROFcon

Feed-forward neural network with back-propagation

evolutionary profiles obtained using PSI-BLAST, predicted secondary structure and solvent accessibility, sequence conservation, biophysical features and "complexity" of residues

24.2

3.6

Baldi-group-server

RNN – Recursive neural network

PSI-BLAST generated sequence profiles, correlated mutations, predicted secondary structure, solvent accessibility

21.9

2.9

GPCPRED

Genetic programming with self-organizing maps

PSI-BLAST generated sequence profiles, sequence separation

17.4

2.7

Karypis

Support Vector Machines

Sequence profiles, correlated mutations from multiple sequence alignment analysis, sequence conservation, sequence separation, predicted secondary structure

11.0

1.5

KIAS

CMA analysis

Multiple sequence alignment, hydrophobic packing of residues (data obtained from sequence conservation and hydrophobicity)

11.0

1.7

SAM-T04

Neural network

Alignments, predicted secondary structure and propensities of residues in contact

9.6

1.43

Hamilton-Huber-Torda

Feed-forward neural network

Mutational correlations from multiple sequence alignments, biophysical class of contacting pair of residues, predicted secondary structure, sequence separation, length of protein sequence

9.1

1.3

CORNET

Neural network

PSI-BLAST generated sequence profiles, correlated mutations and sequence conservation, sequence separation

2.5

0.34

  1. Mean accuracy and coverage was evaluated for all NF and FR-analogy targets. Here, we defined the accuracy and the coverage in the same fashion as in[4] for top N/5 predicted contacts with a sequence separation of 12: A c c = N t r u e p o s i t i v e N t r u e p o s i t i v e + N f a l s e p o s i t i v e â‹… 100 % C o v = N t r u e p o s i t i v e N n a t i v e â‹… 100 % MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=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@99A9@ .