• Product name
  • Description
    Rabbit polyclonal to MST3
  • Host species
  • Tested applications
    Suitable for: WB, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Cow, Xenopus laevis, Xenopus tropicalis
  • Immunogen

    Recombinant fragment, corresponding to a region within amino acids 1-247 of Human MST3

  • Positive control
    • 293T, A431, H1299, HeLaS3, HepG2, MOLT4, Raji whole cell lysate; HeLa cells
  • General notes
    Keep as a concentrated solution.



Our Abpromise guarantee covers the use of ab155198 in the following tested applications.

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

Application Abreviews Notes
WB 1/500 - 1/3000. Predicted molecular weight: 48 kDa.
ICC/IF 1/100 - 1/1000.


  • Function
    Serine/threonine-protein kinase that acts on both serine and threonine residues and promotes apoptosis in response to stress stimuli and caspase activation. Mediates oxidative-stress-induced cell death by modulating phosphorylation of JNK1-JNK2 (MAPK8 and MAPK9), p38 (MAPK11, MAPK12, MAPK13 and MAPK14) during oxidative stress. Plays a role in a staurosporine-induced caspase-independent apoptotic pathway by regulating the nuclear translocation of AIFM1 and ENDOG and the DNase activity associated with ENDOG. Phosphorylates STK38L on 'Thr-442' and stimulates its kinase activity. Regulates cellular migration with alteration of PTPN12 activity and PXN phosphorylation: phosphorylates PTPN12 and inhibits its activity and may regulate PXN phosphorylation through PTPN12. May act as a key regulator of axon regeneration in the optic nerve and radial nerve.
  • Tissue specificity
    Isoform A is ubiquitous. Isoform B is expressed in brain with high expression in hippocampus and cerebral cortex.
  • Sequence similarities
    Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. STE20 subfamily.
    Contains 1 protein kinase domain.
  • Post-translational
    Proteolytically processed by caspases during apoptosis. Proteolytic cleavage results in kinase activation, nuclear translocation of the truncated form (MST3/N) and the induction of apoptosis.
    Isoform B is activated by phosphorylation by PKA. Oxidative stress induces phosphorylation. Activated by autophosphorylation at Thr-190 and phosphorylation at this site is essential for its function. Manganese, magnesium and cobalt-dependent autophosphorylation is mainly on threonine residues while zinc-dependent autophosphorylation is on both serine and threonine residues.
  • Cellular localization
    Cytoplasm. Nucleus. Membrane. The truncated form (MST3/N) translocates to the nucleus. Co-localizes with STK38L in the membrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • epididymis secretory protein Li 95 antibody
    • HEL-S-95 antibody
    • Mammalian STE20 like protein kinase 3 antibody
    • Mammalian STE20-like protein kinase 3 antibody
    • Mammalian STE20-like protein kinase 3 C-terminal antibody
    • Mammalian STE20-like protein kinase 3 N-terminal antibody
    • Mammalian sterile 20-like 3 antibody
    • MST-3 antibody
    • MST3/C antibody
    • MST3/N antibody
    • MST3B antibody
    • serine threonine kinase 24 antibody
    • Serine/threonine kinase 24 (Ste20, yeast homolog) antibody
    • Serine/threonine-protein kinase 24 12 kDa subunit antibody
    • Serine/threonine-protein kinase 24 antibody
    • STE20 homolog yeast antibody
    • STE20 like kinase MST3 antibody
    • STE20-like kinase MST3 antibody
    • Stk24 antibody
    • STK24_HUMAN antibody
    • STK3 antibody
    see all


  • All lanes : Anti-MST3 antibody (ab155198) at 1/1000 dilution

    Lane 1 : 293T whole cell lysate
    Lane 2 : A431 whole cell lysate
    Lane 3 : H1299 whole cell lysate
    Lane 4 : HeLaS3 whole cell lysate
    Lane 5 : HepG2 whole cell lysate
    Lane 6 : MOLT4 whole cell lysate
    Lane 7 : Raji whole cell lysate

    Lysates/proteins at 30 µg per lane.

    Predicted band size: 48 kDa

    10% SDS PAGE
  • Immunofluorescent analysis of methanol-fixed heLa cells labeling ANKRD32 with ab155198 at 1/100 dilution. Lower panel co-stained with Hoechst 33342.


This product has been referenced in:
  • Jiang Y  et al. Protein Kinase Serine/Threonine Kinase 24 Positively Regulates Interleukin 17-Induced Inflammation by Promoting IKK Complex Activation. Front Immunol 9:921 (2018). Read more (PubMed: 29760709) »
See 1 Publication for this product

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