TMEM219 Antibody [Unconjugated]

Western blot shows lysates of human liver tissue, human skeletal muscle tissue, and human kidney tissue. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human TMEM219 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7556) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for TMEM219 at approximately 30 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

TMEM219 was detected in immersion fixed paraffin-embedded sections of human prostate gland using Sheep Anti-Human TMEM219 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7556) at 1 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm in stromal cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

• Reactivity: Hu
• Applications: WB, IHC
• Clonality: Polyclonal
• Host: Sheep
• Conjugate: Unconjugated
• Concentration: LYOPH

TMEM219 Antibody [Unconjugated] Summary

• Immunogen: Chinese hamster ovary cell line CHO-derived recombinant human TMEM219
  Leu41-Leu200
  Accession # ACQ72822
• Specificity: Detects human TMEM219 in direct ELISAs and Western blots.
• Source: N/A
• Isotype: IgG
• Clonality: Polyclonal
• Host: Sheep
• Gene: TMEM219
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Immunohistochemistry 1-15 ug/mL
  • Western Blot 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: No Preservative
• Concentration: LYOPH
• Reconstitution Instructions: Sterile PBS to a final concentration of 0.2 mg/mL.

Notes

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

Alternate Names for TMEM219 Antibody [Unconjugated]

• IGFBP3R
• IGFBP-3R
• Insulin-Like Growth Factor Binding Protein-3 Receptor
• Insulin-Like Growth Factor-Binding Protein 3 Receptor
• LOC124446
• TMEM219
• Transmembrane Protein 219

Background

TMEM219 (Transmembrane protein 219; also IGFBP3 Receptor) is a 30-35 kDa member of the 2-transmembrane group of the Pfam-A family of polytopic molecules. It is widely expressed, and appears to be a cell-surface receptor for IGFBP3. Only free IGFBP3 will bind to TMEM219; when complexed to IGF-I, IGFBP3 is unable to recognize the TMEM219 molecule. Ligation of TMEM219 inhibits cell proliferation and induces caspase-8 mediated apoptosis. It is suggested that procaspase-8 is normally sequestered by TMEM219. Following IGFBP3 binding, procaspase-8 is activated and released from TMEM219, resulting in the downstream activation of executioner caspases. Human TMEM219 is a 240 amino acid (aa) 2-transmembrane protein. It contains an N-terminal 20 aa cytoplasmic region, a 21 aa TM domain, a 164 aa extracellular region (aa 41-204), a second 21 aa TM domain, and a C-terminal 15 aa cytoplasmic tail. Over aa 41-200, human TMEM219 shares 82% aa sequence identity with mouse TMEM219.

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.

Publications for TMEM219 Antibody (AF7556)(1)

Publication using AF7556

• Chen, YI;Tien, SC;Ko, YL;Chang, CC;Hsu, MF;Chien, HJ;Peng, HY;Jeng, YM;Tien, YW;Chang, YT;Chang, MC;Hu, CM; SEMA7A-mediated juxtacrine stimulation of IGFBP-3 upregulates IL-17RB at pancreatic cancer invasive front Cancer gene therapy 2024-10-24 [PMID: 39448803] (Western Blot, Human)

Bioinformatics

• Gene Symbol: TMEM219
• Uniprot:
  • ACQ72822()