. "protoporphyrinogen oxidase (PPOX) [hgnc:9280]" . . . "protoporphyrinogen oxidase (PPOX)" . "hgnc:9280" . "PPOX" . "http://www.genenames.org/data/hgnc_data.php?hgnc_id=HGNC:9280" . . . "protoporphyrinogen oxidase" . "Approved" . "gene with protein product" . . "1988-08-31" . "2008-02-05" . . "Standard" . . . . . . . . . . "BC002357" . . "VP" . "'variegate porphyria'" . .