Genome Biology

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Predicting genes for orphan metabolic activities using phylogenetic profiles

Lifeng Chen and Dennis Vitkup*

Author Affiliations

Center for Computational Biology and Bioinformatics and Department of Biomedical Informatics, Columbia University, St Nicholas Avenue, Irving Cancer Research Center, New York, NY 10032, USA

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Genome Biology 2006, 7:R17 doi:10.1186/gb-2006-7-2-r17

Published: 15 February 2006

Additional files

Additional File 1:

Genomes used in this study to generate phylogenetic profiles.

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Additional File 2:

The effect of connection specificity adjustment.

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Additional File 3:

Comparison of the performance of the simplex and simulated annealing algorithms.

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Additional File 4:

Comparison of the predictions based on Equations 2 and 3.

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Additional File 5:

Ten-fold cross-validation of the algorithm.

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Additional File 6:

Comparison of the predictions based on all yeast non-metabolic genes as the candidate gene set, all hypothetical genes or a randomly selected subset of yeast non-metabolic genes.

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Additional File 7:

Context-based association as a function of metabolic network distance in E. coli.

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Additional File 8:

Comparison of predictions based on normalized gene phylogenetic profiles, mutual information, and the method reported in the paper.

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Additional File 9:

Dataset of sample predictions for E. coli and S. cerevisiae orphan activities.

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