Recombinant Human Serine/threonine-protein kinase 25 (STK25)

Code CSB-EP022842HU
Size $224
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Greater than 90% as determined by SDS-PAGE.
Target Names
Uniprot No.
Research Area
Signal Transduction
Alternative Names
C86992; Serine/threonine kinase 25; Serine/threonine kinase 25 (STE20 homolog, yeast); Serine/threonine kinase 25 (STE20 homolog, yeast), isoform CRA_a; Serine/threonine kinase 25 (yeast); Serine/threonine protein kinase 25; Serine/threonine-protein kinase 25; SOK 1; SOK-1; SOK1; Ste20 like kinase; Ste20 yeast homolog; Ste20-like; STE20-like kinase; Ste20/oxidant stress response kinase 1; Sterile 20 (oxidant stress response kinase 1); Sterile 20/oxidant stress-response kinase 1; STK25; STK25_HUMAN; Yeast Sps1/Ste20 related kinase 1; YSK 1; YSK1
Homo sapiens (Human)
Expression Region
Target Protein Sequence
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
Protein Length
Full Length
Tag Info
N-terminal 6xHis-SUMO-tagged
Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

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Target Background

Oxidant stress-activated serine/threonine kinase that may play a role in the response to environmental stress. Targets to the Golgi apparatus where it appears to regulate protein transport events, cell adhesion, and polarity complexes important for cell migration.
Gene References into Functions
  1. STK25 regulates lipid partitioning in human liver cells by controlling TAG synthesis as well as lipolytic activity and thereby NEFA release from lipid droplets for beta-oxidation and TAG secretion. PMID: 26553096
  2. Our results suggest that MST4, STK25 and PDCD10 are upregulated in prostate cancer and may play roles in prostate tumorigenesis. PMID: 25550858
  3. This review notes that all 3 human germinal center kinase III genes consist of 12 exons and are ubiquitously expressed. In SOK1 and MST4, exon 1 encodes a 5' untranslated region, but this is not the case for MST3. PMID: 23889253
  4. Down-modulation of STK25, but not STK24, rescued medulloblastoma cells from NGF-induced TrkA-dependent cell death, suggesting that STK25 is part of the death-signaling pathway initiated by TrkA and CCM2. PMID: 22782892
  5. PDCD10 might be a regulatory adaptor required for STK25 functions, which differ distinctly depending on the redox status of the cells that may be potentially related to tumor progression. PMID: 22652780
  6. Significantly higher STK25 levels were observed in the skeletal muscle of type 2 diabetic patients, compared with individuals with normal glucose tolerance. PMID: 22391949
  7. The results of the study results indicate that attenuation of SOK1 enhanced cell migration and lead to changes in the expression of migration-associated proteins such as FAK and GM130. PMID: 21396913
  8. In cultured human endothelial cells, CCM3 and STK25 regulated barrier function in a manner similar to CCM2, and STKs negatively regulated Rho by directly activating moesin. PMID: 20592472
  9. 14-3-3zeta is a specific substrate for YSK1 that localizes to the Golgi apparatus, and potentially links YSK1 signaling at the Golgi apparatus with protein transport. PMID: 15037601
  10. Ste20 family member (MAP4K3) that is required for maximal S6K (S6 kinase)/4E-BP1 [eIF4E (eukaryotic initiation factor 4E) that is required for maximal S6K (S6 kinase). PMID: 17253963
  11. SOK1 entry into the nucleus is important for the cell death response PMID: 18364353

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Subcellular Location
Cytoplasm. Golgi apparatus. Note=Localizes to the Golgi apparatus.
Protein Families
Protein kinase superfamily, STE Ser/Thr protein kinase family, STE20 subfamily
Tissue Specificity
Ubiquitously expressed. Highest levels are found in testis, large intestine, brain and stomach followed by heart and lung.
Database Links

HGNC: 11404

OMIM: 602255

KEGG: hsa:10494

STRING: 9606.ENSP00000325748

UniGene: Hs.516807

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