The following DataNodes have no identifier: 11
More details at https://www.wikipathways.org/WikiPathwaysCurator/DataNodesTests/dataNodesWithoutIdentifier
The following genes with an identifier have been found but that do not have a mapping to Ensembl: 2
http://classic.wikipathways.org/instance/WP4861_r135076 SARS E with datasource UniProtKB
http://classic.wikipathways.org/instance/WP4861_r135076 PP1 with datasource Wikidata
More details at https://www.wikipathways.org/WikiPathwaysCurator/GeneTests/genesWithoutEnsemblMapping