The mouse strain sparse fur with abnormal skin and hair (spf(ash)) is a model for the human ornithine transcarbamylase (OTC) deficiency, an X-linked inherited urea cycle disorder. The spf(ash) mouse carries a single base-pair mutation in the OTC gene that leads to the production of OTC enzyme at 10% of the normal level.
Efficient mitochondrial import of newly synthesized ornithine transcarbamylase (OTC) and correction of secondary metabolic alterations in spf(ash) mice following gene therapy of OTC deficiency.