Exon level integration of proteomics and microarray data

Verfasser / Beitragende:
[Danny A. Bitton, Michał J. Okoniewski, Yvonne Connolly, Crispin J. Miller]
Ort, Verlag, Jahr:
2008
Enthalten in:
BMC bioinformatics, 9, p. 118
Format:
Artikel (online)
ID: 52878482X
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024 7 0 |a 10.3929/ethz-b-000014608  |2 doi 
024 7 0 |a 10.1186/1471-2105-9-118  |2 doi 
035 |a (ETHRESEARCH)oai:www.research-collecti.ethz.ch:20.500.11850/14608 
245 0 0 |a Exon level integration of proteomics and microarray data  |h [Elektronische Daten]  |c [Danny A. Bitton, Michał J. Okoniewski, Yvonne Connolly, Crispin J. Miller] 
506 |a Open access  |2 ethresearch 
520 3 |a Background Previous studies comparing quantitative proteomics and microarray data have generally found poor correspondence between the two. We hypothesised that this might in part be because the different assays were targeting different parts of the expressed genome and might therefore be subjected to confounding effects from processes such as alternative splicing. Results Using a genome database as a platform for integration, we combined quantitative protein mass spectrometry with Affymetrix Exon array data at the level of individual exons. We found significantly higher degrees of correlation than have been previously observed (r = 0.808). The study was performed using cell lines in equilibrium in order to reduce a major potential source of biological variation, thus allowing the analysis to focus on the data integration methods in order to establish their performance. Conclusion We conclude that part of the variation observed when integrating microarray and proteomics data may occur as a consequence both of the data analysis and of the high granularity to which studies have until recently been limited. The approach opens up the possibility for the first time of considering combined microarray and proteomics datasets at the level of individual exons and isoforms, important given the high proportion of alternative splicing observed in the human genome. 
540 |a Creative Commons Attribution 2.0 Generic  |u http://creativecommons.org/licenses/by/2.0  |2 ethresearch 
690 7 |a Proteomics Data  |2 ethresearch 
690 7 |a Log2 Fold Change  |2 ethresearch 
690 7 |a Exon Array  |2 ethresearch 
690 7 |a Transcript Location  |2 ethresearch 
690 7 |a Reporter Group  |2 ethresearch 
700 1 |a Bitton  |D Danny A.  |e joint author 
700 1 |a Okoniewski  |D Michał J.  |e joint author 
700 1 |a Connolly  |D Yvonne  |e joint author 
700 1 |a Miller  |D Crispin J.  |e joint author 
773 0 |t BMC bioinformatics  |d London : BioMed Central  |g 9, p. 118 
856 4 0 |u http://hdl.handle.net/20.500.11850/14608  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
908 |D 1  |a Journal Article  |2 ethresearch 
950 |B ETHRESEARCH  |P 856  |E 40  |u http://hdl.handle.net/20.500.11850/14608  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Bitton  |D Danny A.  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Okoniewski  |D Michał J.  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Connolly  |D Yvonne  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Miller  |D Crispin J.  |e joint author 
950 |B ETHRESEARCH  |P 773  |E 0-  |t BMC bioinformatics  |d London : BioMed Central  |g 9, p. 118 
898 |a BK010053  |b XK010053  |c XK010000 
949 |B ETHRESEARCH  |F ETHRESEARCH  |b ETHRESEARCH  |j Journal Article  |c Open access