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


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 • 2.1k views
ADD COMMENTlink written 20 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 20 months ago • written 20 months ago by Kevin Blighe52k
Please log in to add an answer.


Use of this site constitutes acceptance of our User Agreement and Privacy Policy.
Powered by Biostar version 2.3.0
Traffic: 1522 users visited in the last hour