Get relative gene expression levels of a gene (for example, TP53) across all (or most) TCGA cancer samples

Question

[wcc957]

I am interested in looking for relative gene expression level of a gene (such as TP53) across all cancer samples to get some senses of what cancer samples have greater expression of the gene. I found similar results provided by BioGPS and starBase2.0. Are there any similar services/databases providing relative gene expression levels only based on The Cancer Genome Atlas (TCGA) data? Thanks!

Answer 1

[Malachi Griffith]

I believe you can do this with the TCGA data portal using the 'Data Matrix' option:

https://tcga-data.nci.nih.gov/tcga/tcgaDownload.jsp

You might need to do it for each cancer type individually though. And you will obtain an archive of processed expression files that you will have to do some parsing of...

[wcc957]

Thank you, Malachi.