Myotubularin Related Protein 14 (MTMR14)

Expression of Mtmr14 increased with myotubule formation and differentiation. MTMR14 is a phosphatidylinositol-3-phosphatase that dephosphorylates the same substrates as myotubularin, PtdIns(4,5)P2 and PtdIns(3,4,5)P3.

MTMR14encodes a myotubularin-related protein. The encoded protein is a phosphoinositide phosphatase that specifically dephosphorylates phosphatidylinositol 3,5-biphosphate and phosphatidylinositol 3-phosphate. Mutations in this gene are correlated with autosomal dominant centronuclear myopathy. Alternate splicing results in multiple transcript variants. A pseudogene of this gene is found on chromosome 18. Expressed in various tissues, including heart, skeletal muscle, placenta, liver, lung, kidney and pancreas.