MST2/STK3 Antibody (2072A) [Unconjugated]

Western blot shows lysates of A431 human epithelial carcinoma cell line, HeLa human cervical epithelial carcinoma cell line, A20 mouse B cell lymphoma cell line, C6 rat glioma cell line, and Ramos human Burkitt's lymphoma cell line. PVDF membrane was probed with 0.1 µg/mL of Rabbit Anti-Human/Mouse/Rat MST2/STK3 Monoclonal Antibody (Catalog # MAB4549) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for MST2/STK3 at approximately 65 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

MST2/STK3 was detected in immersion fixed A431 human epithelial carcinoma cell line using Rabbit Anti-Human MST2/STK3 Monoclonal Antibody (Catalog # MAB4549) at 3 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red; Catalog # NL004) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm and nuclei. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

MST2/STK3 was detected in immersion fixed paraffin-embedded sections of human kidney using Rabbit Anti-Human/Mouse/Rat MST2/STK3 Monoclonal Antibody (Catalog # MAB4549) at 0.3 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Rabbit IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC003). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm and nuclei in epithelial cells in convoluted tubules. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Simple Western lane view shows lysates of HeLa human cervical epithelial carcinoma cell line, MCF‑7 human breast cancer cell line, NIH‑3T3 mouse embryonic fibroblast cell line, and L6 rat myoblast cell line, loaded at 0.2 mg/mL. A specific band was detected for MST2/STK3 at approximately 62-64 kDa (as indicated) using 1 µg/mL of Rabbit Anti-Human/Mouse/Rat MST2/STK3 Monoclonal Antibody (Catalog # MAB4549) . This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

• Reactivity: Hu, Mu, Rt
• Applications: WB, Simple Western, IHC, ICC/IF
• Clone: 2072A
• Clonality: Monoclonal
• Host: Rabbit
• Conjugate: Unconjugated

MST2/STK3 Antibody (2072A) [Unconjugated] Summary

• Additional Information: Recombinant Monoclonal Antibody.
• Immunogen: E. coli-derived recombinant human STK3
  Ala339-Asp456
  Accession # Q13188
• Specificity: Detects human STK3 in direct ELISAs and Western blots.
• Source: N/A
• Isotype: IgG
• Clonality: Monoclonal
• Host: Rabbit
• Purity Statement: Protein A or G purified from hybridoma culture supernatant

Applications/Dilutions

• Dilutions:
  • Immunocytochemistry 3-25 ug/mL
  • Immunohistochemistry 0.3-25 ug/mL
  • Simple Western 1 ug/mL
  • Western Blot 0.1 ug/mL

Packaging, Storage & Formulations

• Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
• Preservative: Sodium Azide
• Reconstitution Instructions: Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

* Contains <0.1% Sodium Azide, which is not hazardous at this concentration according to GHS classifications. Refer to SDS for additional information and handling instructions.

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for MST2/STK3 Antibody (2072A) [Unconjugated]

• 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

MST2 (mammalian sterile twenty-like 2; also known as STK3 and Krs-1) is a 58 kDa member of the GCKII group of the STE20 subfamily of the STE Ser/Thr kinase protein family. In human, MST2 is 491 amino acids (aa) in length. It contains one kinase domain (aa 27‑278), two NESs (aa 361‑371 and 438‑447) and coiled-coil domains (aa 287‑328 and 442‑475), and one NLS (aa 473‑487). A caspase-cleavage site exists between Asp322‑Ser323. MST2 is normally inactive in the cytoplasm bound to Raf-1. Cell activation induces Raf-1:MST2 dissociation, MST2 cleavage, and N-terminal translocation to the nucleus. Human MST2 is 99% and 96% aa identical to canine and mouse MST2, respectively.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Uniprot:
  • Q13188()