POU2F3 Antibody (1091214) [Unconjugated]

POU2F3 was detected in immersion fixed paraffin-embedded sections of human melanoma using Mouse Anti-Human POU2F3 Monoclonal Antibody (Catalog # MAB11625) at 5 µg/ml for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC001). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (Catalog # VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to the nucleus. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

• Reactivity: Hu
• Applications: IHC
• Clone: 1091214
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Unconjugated

POU2F3 Antibody (1091214) [Unconjugated] Summary

• Immunogen: Synthetic Peptide
  Accession # Q9UKI9
• Specificity: Detects a synthetic peptide specific for human POU2F3 around amino acid 100 in Direct ELISA.
• Source: N/A
• Isotype: IgG2a
• Clonality: Monoclonal
• Host: Mouse
• Purity Statement: Protein A or G purified from hybridoma culture supernatant

Applications/Dilutions

• Dilutions:
  • Immunohistochemistry 3-25 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.
• Reconstitution Instructions: Reconstitute lyophilized material at 0.2 mg/ml in sterile PBS. For liquid material, refer to CoA for concentration.

Notes

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

Alternate Names for POU2F3 Antibody (1091214) [Unconjugated]

• Epoc-1
• MGC126698
• OCT11
• OCT-11
• OCT11FLJ40063
• Octamer-binding protein 11
• Octamer-binding transcription factor 11
• OTF11
• OTF-11
• PLA1
• PLA-1
• POU class 2 homeobox 3
• POU domain class 2, transcription factor 3
• POU domain, class 2, transcription factor 3
• POU transcription factor
• POU2F3
• Skn-1a
• Transcription factor PLA-1
• Transcription factor Skn-1

Background

POU2F3 is a 47 kDa transcription factor involved in the regulation of the differentiation of keratinocytes. It is also a part of the POU2F3-POU2AF2/POU2AF3 complex that drives the expression of tuft-cell-specific genes. Normal and neoplastic tuft cells share a genetic requirement for POU2F3. POU2F3 is utilized as an ancillary marker for the diagnosis of neuroendocrine-low small cell lung cancer. It is also positive in mesenchymal and neuroectodermal tumors including synovial carcinoma, solitary fibrous tumor, glioblastoma, Wilms tumor and melanoma.

1. Hildesheim J, Kühn U, Yee CL, Foster RA, Yancey KB, Vogel JC. The hSkn-1a POU transcription factor enhances epidermal stratification by promoting keratinocyte proliferation. J Cell Sci. 2001 May;114(Pt 10):1913-23. doi: 10.1242/jcs.114.10.1913. PMID: 11329378. 
2. Wu XS, He XY, Ipsaro JJ, Huang YH, Preall JB, Ng D, Shue YT, Sage J, Egeblad M, Joshua-Tor L, Vakoc CR. OCA-T1 and OCA-T2 are coactivators of POU2F3 in the tuft cell lineage. Nature. 2022 Jul;607(7917):169-175. doi: 10.1038/s41586-022-04842-7. Epub 2022 May 16. PMID: 35576971; PMCID: PMC9419707. 
3. Kaczorowski M, Ylaya K, Chłopek M, Lasota J, Miettinen M. Expression of POU2F3 Transcription Factor and POU2AF2, POU2F3 Coactivator, in Tuft Cell-like Carcinoma and Other Tumors. Am J Surg Pathol. 2024 Sep 25. doi: 10.1097/PAS.0000000000002313. Epub ahead of print. PMID: 39319626.

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:
  • Q9UKI9(Mouse)