5.1 years ago by
TCGA splits up the work for each technology to a different center for data production and analysis (in almost all cases). The examples you have shown above do in fact come from the same patient, but they were processed at different centers throughout the country for the different parts of the analysis.
For example, here are the different centers were some of the data types are processed:
For example, DNA methylation data is never processed at either of the centers described you mentioned - it is produced at USC (and some might have been produced at Johns Hopkins, but they currently only list USC - but the point is that the same samples are processed at different centers)
This page provides an overview, with links such as the one provided above:
That said, every patient won't have paired data for every technology. For example, you can see the sample counts vary for each technology for breast cancer (although the sample counts now seem more similar than I have remembered in the past):