Recombinant Human p70S6Kb Protein

Name: Recombinant Human p70S6Kb Protein
Brand: Beta LifeScience
SKU: BL-0905SG
Availability: InStock

Collections: Other recombinant proteins, Recombinant proteins

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Product Overview

Tag	GST
Host Species	Human
Accession	BC000094
Synonym	RPS6KB2, STK14B, KLS, P70-beta, P70-beta-1, P70-beta-2, S6K2, p70(S6K)-beta, S6K-beta2, SRK
Background	p70S6Kb is a member of the RSK (ribosomal S6 kinase) family of serine/threonine kinases and is activated by mitogenic stimuli, including growth factors, cytokines, and phorbol esters. p70S6Kb contains 2 nonidentical kinase catalytic domains and phosphorylates the S6 ribosomal protein and eucaryotic translation initiation factor 4B. Phosphorylation of S6 leads to an increase in protein synthesis and cell proliferation. PI3 kinase pathway and mTOR are involved in the activation of p70S6Kb but other pathways can also activate this target protein.
Description	Recombinant full-length human p70S6Kb was produced by baculovirus in Sf9 insect cells, fused with a GST tag at N-terminus. This protein is purified with our unique purification methods.
Source	Sf9 insect cells
AA Sequence	Full Length
Molecular Weight	~85 kDa
Purity	For specific purity information on a given lot, see related COA.
Endotoxin	< 1.0 EU per μg of the protein as determined by the LAL method
Bioactivity	Active
Formulation	Recombinant protein is supplied in 50mM Tris-HCl, pH 7.5, 50mM NaCl, 10mM Glutathione, 0.25mM DTT, 0.1mM EDTA, 0.1mM PMSF and 25% glycerol.
Stability	The recombinant protein is stable for up to 12 months at -70°C
Usage	For Research Use Only
Storage	Recombinant Human p70S6Kb Protein should be stored should be stored at < -70°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

Target Details

Target Function	Phosphorylates specifically ribosomal protein S6. Seems to act downstream of mTOR signaling in response to growth factors and nutrients to promote cell proliferation, cell growth and cell cycle progression in an alternative pathway regulated by MEAK7.
Subcellular Location	Cytoplasm. Nucleus.
Protein Families	Protein kinase superfamily, AGC Ser/Thr protein kinase family, S6 kinase subfamily
Database References	HGNC: 10437 OMIM: 608939 KEGG: hsa:6199 STRING: 9606.ENSP00000308413 UniGene: Hs.534345

Gene Functions References

Overexpression of catalytically-active Akt or knockdown of glycogen synthase kinase-3 (GSK3)-beta, a substrate for Akt, had little effect on Mcl-1 downregulation caused by S6K2 deficiency PMID: 28301598
We propose that the S6K2/TRBP node controls miRNA biogenesis in HDLECs and provides a molecular link between the mTOR pathway and the miRNA biogenesis machinery. PMID: 27407113
discovered that ERBB4 and S6K2 were the direct targets of miR-193a-3p and that PIK3R3 and mTOR were the direct targets of miR-193a-5p in non-small-cell lung cancer PMID: 24469061
Degradation of Tiam1 by casein kinase 1 and the SCFbetaTrCP ubiquitin ligase controls the duration of mTOR-S6K signaling. PMID: 25124033
The mTOR effectors 4EBP1 and S6K2 are frequently coexpressed, and associated with a poor prognosis and endocrine resistance in breast cancer. PMID: 24131622
The p85 S6K1 promotes H2O2-induced cell death via a rapamycin-insensitive mechanism. PMID: 22955948
S6K2 amplification was frequently observed in gastric cancer and was related to a poor prognosis PMID: 23393338
Study shows that the two homologues of S6K have distinct effects on Akt activation and cell survivalin breast cancer. PMID: 21427355
heterogeneous ribonucleoprotein F is involved in the regulation of cell proliferation via the mammalian target of rapamycin/S6 kinase 2 pathway PMID: 20308064
p70 S6 kinase regulates neutrophilic differentiation in HL-60 cells PMID: 12176053
regulation of nucleocytoplasmic shuttling of S6KbetaII by protein kinase C-mediated phosphorylation PMID: 12529391
the PI3K/p70 S6K/c-Myc cascade plays an important role in neutrophilic proliferation in HL-60 cells. PMID: 12818373
These data suggest that activated p70 S6 kinase could mediate an up-regulation of tau translation. PMID: 12875979
p70 ribosomal protein S6 kinase activity was induced by K-Ras in a phosphatidylinositol 3-kinase and mTOR-dependent manner. PMID: 14729629
S6K2 is active throughout the cell cycle with higher activity in G2 and M phases. PMID: 17786541

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.