Possibly outdated result from listDatabases()

According to the KEGG API docs (which are linked in the function's documentation), the following databases are available:

pathway | brite | module | ko | genome | <org> | vg | ag | compound |
glycan | reaction | rclass | enzyme | disease | drug | dgroup | environ |
genes | ligand | kegg | <medicus> | <outside>

Indeed, calls can be made to any of these databases using keggFind, keggGet etc.

However, listDatabases() returns the following list instead:

 [1] "pathway"  "brite"    "module"   "disease"  "drug"     "environ"  "ko"       "genome"   "compound"
[10] "glycan"   "reaction" "rclass"   "enzyme"   "organism"

Note that:

• vg, ag, dgroup, genes, ligand are available but not listed
• organism is listed but not available

The function output may require updating.

Thanks for the notice!  I've made the fix.  The output to listDatabases() now returns the appropriate results in the current release version of KEGGREST(v1.16.1).