Journal
NUCLEIC ACIDS RESEARCH
Volume 41, Issue D1, Pages D828-D833Publisher
OXFORD UNIV PRESS
DOI: 10.1093/nar/gks1231
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Funding
- National Institutes of Health [GM030518, GM094597, CA121852]
- Howard Hughes Medical Institute
- NATIONAL CANCER INSTITUTE [U54CA121852] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM030518, U54GM094597, R37GM030518] Funding Source: NIH RePORTER
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PrePPI (http://bhapp.c2b2.columbia.edu/PrePPI) is a database that combines predicted and experimentally determined protein-protein interactions (PPIs) using a Bayesian framework. Predicted interactions are assigned probabilities of being correct, which are derived from calculated likelihood ratios (LRs) by combining structural, functional, evolutionary and expression information, with the most important contribution coming from structure. Experimentally determined interactions are compiled from a set of public databases that manually collect PPIs from the literature and are also assigned LRs. A final probability is then assigned to every interaction by combining the LRs for both predicted and experimentally determined interactions. The current version of PrePPI contains similar to 2 million PPIs that have a probability more than similar to 0.1 of which similar to 60 000 PPIs for yeast and similar to 370 000 PPIs for human are considered high confidence (probability > 0.5). The PrePPI database constitutes an integrated resource that enables users to examine aggregate information on PPIs, including both known and potentially novel interactions, and that provides structural models for many of the PPIs.
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