The bioBakery help forum

MGX and MTX data products

Hi,
I am interested in working with the Humann2 output from the metagenomics (MGX) and metatranscriptomics (MTX) IBDMDB data - specifically the gene families quantification.
To download a large number of these outputs, I’m using the FTP server (ftp.broadinstitute.org).
However, I’m confused about where to look for samples. Within the MGX subdirectory, one finds

2017-08-12
2017-12-14
2018-05-04

Each of these contains humann2 output files. There is a great deal of overlap between the sample names, although the contents of the files are not the same. What is the difference between these directories?
Thanks
Greg