Acute intermittent porphyria
How is acute intermittent porphyria inherited?
Acute intermittent porphyria (AIP) is inherited in an autosomal dominant manner. This means that AIP happens in people who have a mutation/change in one of the two copies of the gene called HMBS that causes AIP when it does not work.
Acute Intermittent Porphyria. Gene Reviews. (http://www.ncbi.nlm.nih.gov/books/NBK1193)