• Nature

  • Source

    Baculovirus infected Sf9 cells
  • Amino Acid Sequence
    • Species



Our Abpromise guarantee covers the use of ab60885 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications


    Functional Studies

  • Form

  • Additional notes

    ab64311 (Myelin Basic Protein protein) can be utilized as a substrate for assessing kinase activity

    Previously labelled as STK3. 

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.

    pH: 7.50
    Constituents: 0.0038% EGTA, 0.00174% PMSF, 0.00385% DTT, 0.79% Tris HCl, 0.00292% EDTA, 25% Glycerol, 0.87% Sodium chloride

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

General Info

  • Alternative names

    • 0610042I06Rik
    • EC
    • FLJ90748
    • KB 1458E12.1
    • Kinase responsive to stress 1
    • KRS1
    • Mammalian STE20 like protein kinase 2
    • Mammalian STE20-like protein kinase 2
    • Mammalian sterile 20-like 2
    • Mess1
    • MST
    • MST-2
    • MST2
    • Mst3
    • Serine/threonine kinase 3
    • Serine/threonine kinase 3 (STE20 homolog, yeast)
    • Serine/threonine kinase 3 (Ste20, yeast homolog)
    • Serine/threonine protein kinase 3
    • Serine/threonine protein kinase Krs1
    • Serine/threonine-protein kinase 3
    • Serine/threonine-protein kinase Krs-1
    • STE20 like kinase MST2
    • STE20-like kinase MST2
    • Stk3
    • STK3_HUMAN
    • wu:fc19e11
    • zgc:55383
    see all
  • Function

    Stress-activated, pro-apoptotic kinase which, following caspase-cleavage, enters the nucleus and induces chromatin condensation followed by internucleosomal DNA fragmentation. Key component of 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 MST1/MST2, 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 LATS2 inhibits its translocation into the nucleus to regulate cellular genes important for cell proliferation, cell death, and cell migration. MST1/MST2 are required to repress proliferation of mature hepatocytes, to prevent activation of facultative adult liver stem cells (oval cells), and to inhibit tumor formation. Phosphorylates NKX2-1.
  • Tissue specificity

    Expressed at high levels in adult kidney, skeletal and placenta tissues and at very low levels in adult heart, lung and brain tissues.
  • Sequence similarities

    Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. STE20 subfamily.
    Contains 1 protein kinase domain.
    Contains 1 SARAH domain.
  • Cellular localization

    Cytoplasm. Nucleus. The caspase-cleaved form cycles between nucleus and cytoplasm.
  • Information by UniProt


  • Sample Kinase Activity Plot.
  • ab60885 on SDS-PAGE, MW ~87 kDa.


ab60885 has not yet been referenced specifically in any publications.

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