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Human RIOK1 / RIO kinase 1 Protein (His & GST Tag)

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Human RIOK1 Protein Product Information
Protein Construction:A DNA sequence encoding the human RIOK1 (Q9BRS2) (Met1-Lys568) was expressed with the N-terminal polyhistidine-tagged GST tag at the N-terminus.
Expressed Host:Baculovirus-Insect Cells
Shipping:Kinases are highly recommended to be shipped at frozen temperature with blue ice or dry ice.
Shipment made at ambient temperature may seriously affect the activity of the ordered products.
Human RIOK1 Protein QC Testing
Purity:> 85 % as determined by SDS-PAGE
Bio-Activity:Kinase activity untested
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Met
Molecule Mass:The recombinant human RIOK1/GST chimera consists of 805 amino acids and has a calculated molecular mass of 93.4 kDa. The recombinant protein migrates as an approximately 94 kDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile 20mM Tris, 500mM NaCl, 10% glycerol, pH 7.4.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human RIOK1 Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human RIOK1 Protein SDS-PAGE
Human RIOK1 / RIO kinase 1 Protein (His & GST Tag) SDS-PAGE
Other RIOK1 Recombinant Protein Products
RIOK1 / RIO kinase 1 Background

RIOK1, also known as RIO kinase 1, is a member of the RIO family of atypical serine protein kinases first characterized in yeast. RIOK1 and RIOK2 proteins are present in organisms from Archaea to humans. RIOK1 functios as a new interactor of protein arginine methyltransferase 5 (PRMT5), competes with pICln for binding and modulates PRMT5 complex composition and substrate specificity. RioK1 and pICln bind to PRMT5 in a mutually exclusive fashion. This results in a PRMT5-WD45/MEP50 core structure that either associates with pICln or RioK1 RIOK1 in distinct complexes. RIOK1 functions in analogy to pICln as an adapter protein by recruiting the RNA-binding protein nucleolin to the PRMT5 complex for its symmetrical methylation.

Human RIOK1 / RIO kinase 1 References
  • Widmann B. et al., 2012, Mol Biol Cell. 23 (1): 22-35.
  • LaRonde-LeBlanc N. et al., 2005, Biochim Biophys Acta. 1754 (1-2): 14-24.
  • Guderian G. et al., 2011, J Biol Chem. 286 (3): 1976-86.
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    Catalog: 14477-H20B-50
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