Gillis, J., Pavlidis, P. (February 2013) Assessing identity, redundancy and confounds in Gene Ontology annotations over time. Bioinformatics, 29 (4). pp. 476-82. ISSN 1367-4811 (Electronic)1367-4803 (Linking)
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Abstract
MOTIVATION: The Gene Ontology (GO) is heavily used in systems biology, but the potential for redundancy, confounds with other data sources and problems with stability over time have been little explored. RESULTS: We report that GO annotations are stable over short periods, with 3% of genes not being most semantically similar to themselves between monthly GO editions. However, we find that genes can alter their 'functional identity' over time, with 20% of genes not matching to themselves (by semantic similarity) after 2 years. We further find that annotation bias in GO, in which some genes are more characterized than others, has declined in yeast, but generally increased in humans. Finally, we discovered that many entries in protein interaction databases are owing to the same published reports that are used for GO annotations, with 66% of assessed GO groups exhibiting this confound. We provide a case study to illustrate how this information can be used in analyses of gene sets and networks. AVAILABILITY: Data available at http://chibi.ubc.ca/assessGO. CONTACT: paul@chibi.ubc.ca SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.
| Item Type: | Paper |
|---|---|
| Subjects: | bioinformatics > genomics and proteomics > annotation bioinformatics > genomics and proteomics > genetics & nucleic acid processing bioinformatics > genomics and proteomics bioinformatics > genomics and proteomics > genetics & nucleic acid processing > genomes bioinformatics > genomics and proteomics > genetics & nucleic acid processing > genomes > genome annotation |
| CSHL Authors: | |
| Communities: | CSHL labs > Gillis Lab |
| Depositing User: | Matt Covey |
| Date: | 15 February 2013 |
| Date Deposited: | 01 Apr 2013 15:09 |
| Last Modified: | 06 Apr 2015 14:58 |
| PMCID: | PMC3570208 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/28038 |
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