HMOX1 (heme oxygenase (decycling) 1)'s a human gene that encodes for the enzyme heme oxygenase 1 (EC 1.14.99.3). Heme oxygenase's an essential enzyme in heme catabolism, it cleaves heme to form biliverdin. The HMOX gene's located on the long (q) arm of chromosome 22 at position 13.1, from base pair 34,101,636 to base pair 34,114,748. Related conditions Heme oxygenase-1 deficiency… (More on Hmox1)