Myotubularin-related protein 12 (MTMR12)

Myotubularin-related protein 12 (MTMR12) is an adaptor subunit in complexes with active phosphatidylinositol 3-phosphate (PtdIns(3)P) 3-phosphatases. It belongs to the myotubularin-related protein family and regulates the stability of MTM1 (myotubularin) protein, which is important for the maintenance of skeletal muscle but not for muscle development itself[1][8]. MTMR12 lacks intrinsic phosphatase activity but interacts with catalytically active myotubularins to modulate phosphatidylinositide signaling[1][8]. Mutations or deficiencies in MTMR12 have been associated with centronuclear myopathies, suggesting a disease role in muscle function and maintenance[1]. MTMR12 is not known to be a direct therapeutic target (such as a receptor, enzyme, transporter, or ion channel), nor are there drugs or specific mechanisms of drug action described for this protein. It primarily serves regulatory and scaffolding functions within protein complexes related to phosphatase activity and membrane signaling[1][2][8].

Other names

MTMR12KIAA1682PIP3AP3-PAP3-phosphatase adapter proteinFLJ20476Inactive phosphatidylinositol 3-phosphatase 12Phosphatidylinositol 3 phosphate 3-phosphatase adapter subunitPhosphatidylinositol-3 phosphate associated protein