MOBKL1A Antibody – Mouse Monoclonal

The protein encoded by this gene is similar to the yeast Mob1 protein. Yeast Mob1 binds Mps1p, a protein kinase essential for spindle pole body duplication and mitotic checkpoint regulation. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

MOB1B: Activator of LATS1/2 in the Hippo signaling pathway which plays a pivotal role in organ size control and tumor suppression by restricting proliferation and promoting apoptosis. The core of this pathway is composed of a kinase cascade wherein STK3/MST2 and STK4/MST1, in complex with its regulatory protein SAV1, phosphorylates and activates LATS1/2 in complex with its regulatory protein MOB1, which in turn phosphorylates and inactivates YAP1 oncoprotein and WWTR1/TAZ. Phosphorylation of YAP1 by LATS1/2 inhibits its translocation into the nucleus to regulate cellular genes important for cell proliferation, cell death, and cell migration. Stimulates the kinase activity of STK38L. Binds STK38L. Interacts with LATS1 and LATS2. Adrenal gland, bone marrow, brain, lung, placenta, prostate, salivary gland, skeletal muscle, testis, thymus, thyroid gland, uterus, colon with mucosa, fetal brain and fetal liver. Belongs to the MOB1/phocein family.

Protein type: Activator; Protein kinase, regulatory subunit

Chromosomal Location of Human Ortholog: 4q13.3

Cellular Component: cytoplasm; nucleus; cytosol

Molecular Function: protein binding; metal ion binding; kinase activator activity; kinase binding

Biological Process: protein amino acid autophosphorylation; positive regulation of phosphorylation