F Martinez di Montemuros et al.
Blood cells, molecules & diseases, 27(6), 961-970 (2002-02-08)
Acute intermittent porphyria (AIP) is an autosomal disorder caused by molecular abnormalities in the gene coding for hydroxymethylbilane synthase (HMBS), the third enzyme in the heme biosynthetic pathway. So far, more than 170 different mutations responsible for AIP have been