Human CA125/MUC16 Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty
MAB56092-100
MAB56092-SP
Human  CA125/MUC16 ELISA Standard Curve.
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Human CA125/MUC16 Antibody Summary

Species Reactivity
Human
Specificity
Detects human CA125/MUC16 in direct ELISAs.
Source
Recombinant Monoclonal Mouse IgG1 Clone # 606722R
Purification
Protein A or G purified from cell culture supernatant
Immunogen
Chinese hamster ovary cell line CHO-derived recombinant human CA125/MUC16
Met1-Ser988
Accession # Q8WX17
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
ELISA

This antibody functions as an ELISA capture antibody when paired with Sheep Anti-Human CA125/MUC16 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF62981).

This product is intended for assay development on various assay platforms requiring antibody pairs. We recommend the Human CA125/MUC16 DuoSet ELISA Kit (Catalog # DY5609-05) for convenient development of a sandwich ELISA or the Human CA125/MUC16 Quantikine ELISA Kit (Catalog # DCA125) for a complete optimized ELISA.

 

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Example

Human CA125/MUC16 ELISA Standard Curve. Recombinant Human CA125/MUC16 protein was serially diluted 2-fold and captured by Mouse Anti-Human CA125/MUC16 Monoclonal Antibody (Catalog # MAB56092) coated on a Clear Polystyrene Microplate (Catalog # DY990). Sheep Anti-Human CA125/MUC16 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF62981) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998) followed by Substrate Solution (Catalog # DY999) and stopping the enzymatic reaction with Stop Solution (Catalog # DY994).

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & 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.

Background: CA125/MUC16

MUC16, also known as the CA125 antigen, is a mucin protein that may be found in type I transmembrane or secreted forms that are used monitor the progress of epithelial ovarian cancer therapy (1, 2). Expression of isoforms, proteolytic cleavage, and heavy N- and O- linked glycosylation produce forms of human MUC16 that can vary from 1148 to 22152 amino acids (aa) in length and 200 - 5000 kDa in size (1, 2). The 22152 aa form contains ser/thr-rich N-terminal tandem repeats, 4 LRR (Leu-rich repeat) domains, 56 SEA (sea urchin sperm protein, enterokinase and agrin) domains, a transmembrane domain, and a 31 aa cytoplasmic domain that includes a tyrosine phosphorylation site (1-4). SEA domains are ~120 aa in length, contain conserved residues including potential O-glycosylation sites and a pair of cysteines, and are often found in transmembrane mucins (3). The protein produced by R&D Systems represents aa 13360-14347 of the full sequence and includes the last 6 SEA domains. It shares 68% aa identity with canine MUC16. MUC16 is over-expressed by tumor cells including ovarian and mesothelial cancers (5). The transmembrane form can adhere to mesothelin in the peritoneum, facilitating metastasis of ovarian cancer to the peritoneal cavity (5-7). MUC16 also binds galectin-1 on immune cells and enhances its expression on tumor cells (8). MUC16-expressing tumors adhere to NK cells, down-regulate CD16 and suppress NK response, which may promote immune evasion (9, 10). MUC16 is also cyclically expressed in the endometrium and may contribute to immune privilege during pregnancy (10). In the eye, MUC16 and other mucins protect the cornea and keep it hydrated. It is altered on the conjunctival epithelium of patients with non-Sjogren dry eye syndrome (11).

References
  1. Yin, B. W. T. K. O. Lloyd, 2001, J. Biol. Chem. 276:27371.
  2. Maeda, T. et al. (2004) J. Biol. Chem. 279:13174.
  3. Fendrick, J. L. et al. (1997) Tumour Biol. 18:278.
  4. Swissprot accession Q8WXI7.
  5. Kaneko, O. et al. (2009) J. Biol. Chem. 284:3739.
  6. Rump, A. et al. (2004) J. Biol. Chem. 279:9190.
  7. Gubbels, J. A. A. et al. (2006) Mol. Cancer 5:50.
  8. Seelenmeyer, C. et al. (2003) J. Cell Sci. 116:1305.
  9. Patankar, M. S. et al. (2005) Gynecol. Oncol. 99:704.
  10. Belisle, J. A. et al. (2007) Immunology 122:418.
  11. Blalock, T. D. et al. (2007) Invest. Ophthalmol. Vis. Sci. 48:4509.
Long Name
Ovarian Cancer Antigen CA125
Entrez Gene IDs
94025 (Human)
Alternate Names
CA125 ovarian cancer antigen; CA125; CA-125; CA125MUC-16; FLJ14303; MUC16; mucin 16, cell surface associated; mucin-16; Ovarian cancer-related tumor marker CA125; Ovarian carcinoma antigen CA125

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Isotype Controls

Mouse IgG1 Isotype Control

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Reconstitution Buffers

Secondary Antibodies

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