Question: mRNA expression values in cbioportal
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gravatar for zy516565
12 months ago by
zy5165650
zy5165650 wrote:

Hi,

I am new to genomic scene and I am trying to analyse the expression of some genes in various types of prostate cancer. I just have one query regarding data I have downloaded from cBioportal.. are the values for "mRNA expression" z-scores or log2 values? I am having some trouble understanding this as some values are negative while others are round large numbers eg: 35, 60 etc.

Thanks a lot for your help!

cbioportal mrnaexpression • 1.3k views
ADD COMMENTlink written 12 months ago by zy5165650

At which particular file are you looking (link)? - RSEM / RNA-seq v2?

They are most likely Z-scores, as per this previous question: What is the unit of TCGA RNA-seq data downloaded from cBioPortal?

ADD REPLYlink modified 12 months ago • written 12 months ago by Kevin Blighe41k
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