Beginning with this latest data release, the structure of the metadata in MyGene.info has changed slightly. It used to be that users could retrieve information on the data version number by calling the “src_version” field from the metadata json object, which would contain the version information for each data resource and looked something like this:

 "src_version": {
    "PantherDB": "2017-12-11",
    "cpdb": "34",
    "ensembl": "96",
    "ensembl_fungi": "43",
    "ensembl_genomic_pos_hg19": null,
    …
    …
    "wikipedia": null
 }

Similarly, the number of annotations from each resource could be retrieved from the “stats” json object.

 "stats": {
    "total_ensembl_genes": 31358764,
    "total_ensembl_genes_mapped_to_entrez": 3209199,
    "total_ensembl_only_genes": 7465711,
    "total_entrez_genes": 23740786,
    "total_genes": 31206497,
    "total_species": 25238
 }

From this update on, “src_version” has been deprecated and removed. This is because the metadata is (and has been for awhile now) contained in a “src” nested json object with each resource containing properties such as “code”, “stats”, and “version” along with the corresponding values as seen in this example:

 "src": {
    "PantherDB": {
      "code": {
        "branch": "v3",
        "commit": "2a4aeca",
        "folder": "src/plugins/PantherDB",
        "repo": "https://github.com/biothings/mygene.info.git",
        "url":  "https://github.com/biothings/..."
      },
      "stats": {
        "PantherDB": 156054
      },
      "version": "2017-12-11"
 }

Users interested in retrieving information on the latest stats or version of the data resources in MyGene.info should adjust their code accordingly.

While we’re on the subject of the latest stats and versions...these are the most recent updates to the data:

Resource	build_version: "20190421"	build_version: "20190428"
entrez_accession	23623571	23833656
entrez_gene	23740786	23950933
entrez_genomic_pos	2596024	2593132
entrez_go	204547	204413
entrez_refseq	23586607	23796228
entrez_retired	249767	250635
entrez_unigene	544868	544835
generif	97870	97929
entrez_ec	19906	19909
entrez_genesummary	27722	28153
total_ensembl_genes	31358764	31568911
total_ensembl_genes_mapped_to_entrez	3209199	3209192
total_ensembl_only_genes	7465711	7465713
total_entrez_genes	23740786	23950933
total_genes	31206497	31416646
total_species	25238	25257