I would like to download somatic SNP data from the TCGA. But if I have a look at the data matrix right here, there are two color codes "Tumor, matched normal" and "Normal, matched Tumor". I looked up the online guide and the Getting Started with the Data Matrix guide.
They explain it like
- TN (Tumor, matched normal) – Data for a tumor tissue for which matched normal tissue exists.
- NT (Normal, matched tumor) – Data for normal tissue for which matched tumor tissue exists.
But where is the difference?
May some of you are more experienced using TCGA then me.
With all the best,