Membrane bound transcription factor peptidase, site 2

Membrane bound transcription factor peptidase, site 2 is a protein that in humans is encoded by the MBTPS2 gene.
Function.
This gene encodes an intramembrane zinc metalloprotease, which is essential in development. This protease functions in the signal protein activation involved in sterol control of transcription and the ER stress response. Mutations in this gene have been associated with ichthyosis follicularis with atrichia and photophobia (IFAP syndrome); IFAP syndrome has been quantitatively linked to a reduction in cholesterol homeostasis and ER stress response.[provided by RefSeq, Aug 2009].