The following genes with an identifier have been found but that do not have a mapping to Ensembl: 6
http://classic.wikipathways.org/instance/WP173_r116998 Ugt1a6 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP173_r116998 Gclc with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP173_r116998 Maoa with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP173_r116998 Txnrd1 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP173_r116998 Txn2 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP173_r116998 Sp1 with datasource Entrez Gene
More details at https://www.wikipathways.org/WikiPathwaysCurator/GeneTests/genesWithoutEnsemblMapping