The following DataNodes have no identifier: 8
c h a n n e l)
e x c h a n g e r)
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: 1
http://classic.wikipathways.org/instance/WP2526_r123068 NFKB1 with datasource KEGG Genes
More details at https://www.wikipathways.org/WikiPathwaysCurator/GeneTests/genesWithoutEnsemblMapping