The following DataNodes have no identifier: 5
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: 3
http://classic.wikipathways.org/instance/WP4336_r134815 MIR1247 with datasource miRBase mature sequence
http://classic.wikipathways.org/instance/WP4336_r134815 MIR195 with datasource miRBase mature sequence
http://classic.wikipathways.org/instance/WP4336_r134815 MIR15B with datasource miRBase mature sequence
More details at https://www.wikipathways.org/WikiPathwaysCurator/GeneTests/genesWithoutEnsemblMapping