Recombinant Human MST2/STK3 Protein

Product Discontinued

Recombinant Human MST2/STK3 Protein Summary

• Description: Recombinant protein for Human MST2/STK3
  
  

  Source:Baculovirus (Sf9 insect cells)
  Amino Acid Sequence:(Q13188)

• Source: Sf 9 (baculovirus)
• Protein/Peptide Type: Recombinant Protein
• Gene: STK3
• Purity: >90%, by SDS-PAGE

Applications/Dilutions

• Dilutions:
  • Bioactivity
  • SDS-Page
• Application Notes: Specific activity: 277 nmol phosphate incorporated into MBP per minute per mg protein at 30C for 15 minutes using a final concentration of 50 uM ATP (0.83 uCi/assay).
• Theoretical MW: 87 kDa.
  Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

• Storage: Store at -80C. Avoid freeze-thaw cycles.
• Buffer: 50 mM Tris-HCl, pH 7.5, 150 mM NaCl, 0.25 mM DTT, 0.1 mM EGTA, 0.1 mM EDTA, 0.1 mM PMSF, 25% glycerol
• Concentration: 0.1 mg/ml
• Purity: >90%, by SDS-PAGE

Alternate Names for Recombinant Human MST2/STK3 Protein

• EC 2.7.11
• FLJ90748
• KRS1
• Mammalian STE20-like protein kinase 2
• Mess1
• MST2
• MST-2
• MST2EC 2.7.11.1
• MST3
• serine/threonine kinase 3 (STE20 homolog, yeast)
• serine/threonine kinase 3 (Ste20, yeast homolog)
• serine/threonine kinase 3
• serine/threonine-protein kinase 3
• Serine/threonine-protein kinase Krs-1
• STE20-like kinase MST2
• STK3

Background

Creasy identified a cDNA encoding STK3, which they called MST2. Sequence analysis indicated that the deduced 491-amino acid STK3 protein contains an N-terminal catalytic domain characteristic of STKs (1). Taylor also isolated cDNAs encoding STK3 (p63) and STK4 (p61) respectively. STK3 and STK4 share 94% amino acid identity in the catalytic domain and 78% identity overall (2). The yeast 'sterile 20' (Ste20) kinase acts upstream of the mitogen-activated protein kinase (MAPK) cascade that is activated under a variety of stress conditions. O'Neill used proteomic analysis of RAF1 signaling complexes to show that RAF1 counteracts apoptosis by suppressing the activation of mammalian sterile 20-like kinase (MST2) (3). MST2 was identified as a kinase that is activated by the proapoptotic agents straurosporine and FAS ligand (2; 4). STK3 activation presumably allows cells to resist unfavorable environmental conditions.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

Bioinformatics

• Gene Symbol: STK3