Filtering high-throughput protein-protein interaction data using a combination of genomic features.
Filtering high-throughput protein-protein interaction data using a combination of genomic features.
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DOI:
10.1186/1471-2105-6-100
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发表时间:
2005-04-18
影响因子:
3
通讯作者:
Nakamura H
中科院分区:
文献类型:
--
作者:
Patil A;Nakamura H
Protein-protein interaction data used in the creation or prediction of molecular networks is usually obtained from large scale or high-throughput experiments. This experimental data is liable to contain a large number of spurious interactions. Hence, there is a need to validate the interactions and filter out the incorrect data before using them in prediction studies. In this study, we use a combination of 3 genomic features – structurally known interacting Pfam domains, Gene Ontology annotations and sequence homology – as a means to assign reliability to the protein-protein interactions in Saccharomyces cerevisiae determined by high-throughput experiments. Using Bayesian network approaches, we show that protein-protein interactions from high-throughput data supported by one or more genomic features have a higher likelihood ratio and hence are more likely to be real interactions. Our method has a high sensitivity (90%) and good specificity (63%). We show that 56% of the interactions from high-throughput experiments in Saccharomyces cerevisiae have high reliability. We use the method to estimate the number of true interactions in the high-throughput protein-protein interaction data sets in Caenorhabditis elegans, Drosophila melanogaster and Homo sapiens to be 27%, 18% and 68% respectively. Our results are available for searching and downloading at . A combination of genomic features that include sequence, structure and annotation information is a good predictor of true interactions in large and noisy high-throughput data sets. The method has a very high sensitivity and good specificity and can be used to assign a likelihood ratio, corresponding to the reliability, to each interaction.
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影响因子:
64.8
作者:
Gavin, AC;Bösche, M;Superti-Furga, G
通讯作者:
Superti-Furga, G
影响因子:
7
作者:
Asthana, S;King, OD;Roth, FP
通讯作者:
Roth, FP
影响因子:
14.9
作者:
Mewes, HW;Frishman, D;Weil, B
通讯作者:
Weil, B
影响因子:
7
作者:
Lehner, B;Sanderson, CM
通讯作者:
Sanderson, CM
DOI:
10.2142/biophysics.1.21
发表时间:
2005-01-01
期刊:
Biophysics (Nagoya-shi, Japan)
影响因子:
--
作者:
Patil, Ashwini;Nakamura, Haruki
通讯作者:
Nakamura, Haruki