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Quantitative and qualitative proteome characteristics extracted from in-depth integrated genomics and proteomics analysis

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Item Type:Article
Title:Quantitative and qualitative proteome characteristics extracted from in-depth integrated genomics and proteomics analysis
Creators Name:Low, T.Y. and van Heesch, S. and van den Toorn, H. and Giansanti, P. and Cristobal, A. and Toonen, P. and Schaefer, S. and Hübner, N. and van Breukelen, B. and Mohammed, S. and Cuppen, E. and Heck, A.J.R. and Guryev, V.
Abstract:Quantitative and qualitative protein characteristics are regulated at genomic, transcriptomic, and posttranscriptional levels. Here, we integrated in-depth transcriptome and proteome analyses of liver tissues from two rat strains to unravel the interactions within and between these layers. We obtained peptide evidence for 26,463 rat liver proteins. We validated 1,195 gene predictions, 83 splice events, 126 proteins with nonsynonymous variants, and 20 isoforms with nonsynonymous RNA editing. Quantitative RNA sequencing and proteomics data correlate highly between strains but poorly among each other, indicating extensive nongenetic regulation. Our multilevel analysis identified a genomic variant in the promoter of the most differentially expressed gene Cyp17a1, a previously reported top hit in genome-wide association studies for human hypertension, as a potential contributor to the hypertension phenotype in SHR rats. These results demonstrate the power of and need for integrative analysis for understanding genetic control of molecular dynamics and phenotypic diversity in a system-wide manner.
Keywords:Genome, Hypertension, Liver, Proteome, RNA Editing, RNA Splicing, Steroid 17-alpha-Hydroxylase, Transcriptome, Animals, Rats
Source:Cell Reports
ISSN:2211-1247
Publisher:Cell Press / Elsevier
Volume:5
Number:5
Page Range:1469-1478
Date:12 December 2013
Official Publication:https://doi.org/10.1016/j.celrep.2013.10.041
PubMed:View item in PubMed

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