Correlations between APOBEC_MutLoad_MinEstimate and mRNAseq expression
Breast Invasive Carcinoma (Primary solid tumor)
02 April 2015  |  analyses__2015_04_02
Maintainer Information
Citation Information
Maintained by Hailei Zhang (Broad Institute)
Cite as Broad Institute TCGA Genome Data Analysis Center (2015): Correlations between APOBEC_MutLoad_MinEstimate and mRNAseq expression. Broad Institute of MIT and Harvard. doi:10.7908/C1T43S3W
Overview
Introduction

This pipeline attempts to calculate the pearson correlation between APOBEC_MutLoad_MinEstimate and mRnaseq data of each gene across samples to determine if the APOBEC_MutLoad_MinEstimate also result in differential expressions.

Summary

The correlation coefficients in 10, 20, 30, 40, 50, 60, 70, 80, 90 percentiles are -0.0564, -0.0395, -0.0259, -0.0141, -0.0035, 0.0069, 0.018, 0.0314, 0.0498, respectively.

Results
Correlation results

Number of samples used for the calculation are shown in Table 1. Figure 1 shows the distribution of calculated correlation coefficients and quantile-quantile plot of the calculated correlation coefficients against a normal distribution. Table 2 shows the top 20 genes ordered by the value of correlation coefficients.

Table 1.  Counts of mRNAseq and number of samples in APOBEC_MutLoad_MinEstimate and expression data sets and common to both

Category APOBEC_MutLoad_MinEstimate Expression Common
Sample 978 1093 974

Figure 1.  Summary figures. Left: histogram showing the distribution of the calculated correlations across samples for all Genes. Right: QQ plot of the calculated correlations across samples. The QQ plot is used to plot the quantiles of the calculated correlation coefficients against that derived from a normal distribution. Points deviating from the blue line indicate deviation from normality.

Table 2.  Get Full Table Top 20 genes ranked by correlation coefficients

geneID cor p-value q-value
HFE2|148738 0.3074 2.43114595122051e-09 2.22401231617653e-05
CACNA1S|779 0.268 2.91497706417232e-06 0.00280696949295246
ABRA|137735 0.2343 1.00563434024536e-07 0.000229988573614115
TBX10|347853 0.1925 0.000309245891950916 0.0463767445830652
PROKR1|10887 0.1918 2.37452006577321e-05 0.00868884382467734
OR1Q1|158131 0.1863 0.000574190064553726 0.0659842181582006
CHRNA4|1137 0.182 0.000189695270141232 0.0324675201750846
SUSD2|56241 0.179 1.86831059512116e-08 8.54565266208418e-05
CDH10|1008 0.1753 0.000315819193703604 0.0465986126451704
ASB5|140458 0.1752 0.00130308763832487 0.0996150070466432
SNX11|29916 0.1721 6.5118462622138e-08 0.000170201056019234
OVCH1|341350 0.1719 0.00155976586092477 0.108096500725301
FBXO40|51725 0.1678 0.000383190373016262 0.0535179470588209
LOC400891|400891 0.1649 0.00162179682096375 0.110306299763393
MYL2|4633 0.1638 0.0012057557025793 0.0955548580695832
KCNT1|57582 0.1614 6.24746180877267e-06 0.00394150211218292
TEX11|56159 0.1576 3.53917629292155e-06 0.0030834652121568
SLC10A1|6554 0.1574 0.00140275816386604 0.103151994109108
TMC1|117531 0.1573 3.55047654312379e-05 0.0111999170401712
SEPX1|51734 0.156 1.00074233921887e-06 0.00143152409696613
Methods & Data
Input

Gene level (TCGA Level III) mRNAseq expression data and APOBEC_MutLoad_MinEstimate derived by Mutation_APOBEC pipeline were used to do this analysis. Pearson correlation coefficients were calculated for APOBEC_MutLoad_MinEstimate and each gene across all the samples that were common.

Correlation across sample

Pearson correlation with pairwise.complete.obs was used to do this analysis.

Download Results

In addition to the links below, the full results of the analysis summarized in this report can also be downloaded programmatically using firehose_get, or interactively from either the Broad GDAC website or TCGA Data Coordination Center Portal.