Correlations between APOBEC_MutLoad_MinEstimate and mRNAseq expression
Skin Cutaneous Melanoma (Metastatic)
28 January 2016  |  analyses__2016_01_28
Maintainer Information
Citation Information
Maintained by Hailei Zhang (Broad Institute)
Cite as Broad Institute TCGA Genome Data Analysis Center (2016): Correlations between APOBEC_MutLoad_MinEstimate and mRNAseq expression. Broad Institute of MIT and Harvard. doi:10.7908/C19P3143
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 -0.0943, -0.0645, -0.0421, -0.0243, -0.0072, 0.0109, 0.0307, 0.0538, 0.0841, 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 290 368 290

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
AHSG|197 0.3795 3.68524226703748e-05 0.0596448357395497
PRB2|653247 0.3525 0.000492695085792194 0.162001521414788
AMY1A|276 0.336 3.75046233180854e-07 0.00338647996250652
PRB1|5542 0.3226 0.00112581029720316 0.220989219099911
PARP6|56965 0.3182 3.03399114720548e-08 0.000547908461273838
LOC153328|153328 0.3074 0.000976554946509722 0.209513578337287
ITLN2|142683 0.2657 0.000142987177085052 0.107591892957457
GAGE12J|729396 0.2611 0.00382301169452592 0.362687153530744
PRB3|5544 0.26 0.00684226922243347 0.437471309370635
ITGB1BP1|9270 0.2531 1.28569006339063e-05 0.033220857432662
HAO2|51179 0.2507 0.000713792654708723 0.18615158561844
APOA2|336 0.2477 0.0149574590362018 0.502449349367199
OR7E5P|219445 0.2476 0.0173368703329628 0.524447392812489
LOC285033|285033 0.2469 2.10931759365707e-05 0.0423246293598366
FGF5|2250 0.2439 0.000967981775940707 0.209513578337287
GPR26|2849 0.243 0.0164543755875841 0.513788035702423
RPL23AP82|284942 0.2389 3.96333146284178e-05 0.0596448357395497
NBPF4|148545 0.2387 0.000267218760003907 0.133103956375176
VIL1|7429 0.2352 0.0162568094671274 0.511563178525449
CALHM3|119395 0.2345 0.0160418543810497 0.509138573404878
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.