The following genes with an identifier have been found but that do not have a mapping to Ensembl: 9
http://classic.wikipathways.org/instance/WP561_r124939 UROS with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP561_r124939 HMBS with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP561_r124939 ALAD with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP561_r124939 UROD with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP561_r124939 PPOX with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP561_r124939 ALAS1 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP561_r124939 ALAS2 with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP561_r124939 FECH with datasource Entrez Gene
http://classic.wikipathways.org/instance/WP561_r124939 CPOX with datasource Entrez Gene
More details at https://www.wikipathways.org/WikiPathwaysCurator/GeneTests/genesWithoutEnsemblMapping