CA125 antibody | X75

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Mouse anti Human CA125

Product Type
Monoclonal Antibody
Product CodeApplicationsDatasheetMSDSPack SizeList PriceQuantity
MCA2877 E WB 0.2 mg
Mouse anti Human CA125 antibody, clone X75 recognizes the ovarian cancer mucin CA125 (also known as MUCIN 16). CA125 consists of a short cytoplasmic tail, a transmembrane domain and an exceptionally large glycosylated extracellular domain. The extracellular domain is dominated by a large number of 156-amino acid repeat units, over 60 in all. These repeats are known to bind the antibodies OC125 and M-11.

CA125 is present within normal ovarian, endometrium, endocervix and fallopian tissue, but levels are elevated in over 90% of women with advanced ovarian cancer. CA125 levels may also be elevated in other cancers and non-cancerous conditions such as peritonitis, endometriosis and liver cirrhosis. Levels may also fluctuate during the menstrual cycle and occasionally increases in pregnancy, making CA125 an unreliable marker for ovarian cancer in premenopausal women. The function of CA125 in healthy tissue is unknown but it is thought to provide a protective lubricating barrier against particles and infectious agents at mucosal surfaces.

CA125 was concluded by the International Society of Oncology and BioMarkers (ISOBM) to contain two major antigenic domains. Mouse anti Human CA125 antibody, clone X75 recognizes the epitope specificity group B, similar to the M-11 antibody (Nustad et al. 2002). Mouse anti Human CA125 antibody, clone X75 has been used successfully as both a capture and detection reagent in the development of sensitive ELISA assays for the measurement of CA125 antigen in human plasma samples.

Product Details

Target Species
Product Form
Purified IgG - liquid
Purified IgG prepared by ion exchange chromatography
Buffer Solution
TRIS buffered saline
Preservative Stabilisers
0.09% Sodium Azide (NaN3)
CA125 antigen purified from human ovarian carcinoma.
Approx. Protein Concentrations
IgG concentration 1.0mg/ml
Fusion Partners
Spleen cells from immunised Balb/c mice were fused with cells of the Sp2/0 myeloma cell line.

Storage Information

Store at +4oC or at -20oC if preferred.
Storage in frost-free freezers is not recommended.
Avoid repeated freezing and thawing as this may denature the antibody.
18 months from date of despatch.

More Information

Q8WXI7 Related reagents
Entrez Gene
MUC16 Related reagents
GO Terms
GO:0005886 plasma membrane
GO:0005515 protein binding
GO:0007155 cell adhesion
GO:0016021 integral to membrane
GO:0005615 extracellular space
GO:0019898 extrinsic to membrane
For research purposes only

Applications of CA125 antibody

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Western Blotting
Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.

Secondary Antibodies Available

Description Product Code Pack Size Applications List Price Quantity
Goat anti Mouse IgG (H/L):Alk. Phos. (Multi Species Adsorbed) STAR117A 0.5 mg E WB
Goat anti Mouse IgG (H/L):DyLight®488 (Multi Species Adsorbed) STAR117D488GA 0.1 mg F IF
Goat anti Mouse IgG (H/L):DyLight®680 (Multi Species Adsorbed) STAR117D680GA 0.1 mg F WB
Goat anti Mouse IgG (H/L):DyLight®800 (Multi Species Adsorbed) STAR117D800GA 0.1 mg F IF WB
Goat anti Mouse IgG (H/L):FITC (Multi Species Adsorbed) STAR117F 0.5 mg F
Goat anti Mouse IgG (H/L):HRP (Multi Species Adsorbed) STAR117P 0.5 mg E WB
Goat anti Mouse IgG (Fc):FITC STAR120F 1 mg C F
Goat anti Mouse IgG (Fc):HRP STAR120P 1 mg E WB
Rabbit F(ab')2 anti Mouse IgG:RPE STAR12A 1 ml F
Rabbit F(ab')2 anti Mouse IgG:HRP (Human Adsorbed) STAR13B 1 mg C E P RE WB
Goat anti Mouse IgG:FITC (Rat Adsorbed) STAR70 0.5 mg F
Goat anti Mouse IgG:RPE (Rat Adsorbed) STAR76 1 ml F
Goat anti Mouse IgG:HRP (Rat Adsorbed) STAR77 0.5 mg C E P
Goat anti Mouse IgG/A/M:Alk. Phos. STAR87A 1 mg C E WB
Goat anti Mouse IgG/A/M:HRP (Human Adsorbed) STAR87P 1 mg E
Rabbit F(ab')2 anti Mouse IgG:Dylight®800 STAR8D800GA 0.1 mg F IF WB
Rabbit F(ab')2 anti Mouse IgG:FITC STAR9B 1 mg F

Product Specific References

References for CA125 antibody

  1. Nustad, K. et al. (2002) Epitopes on CA 125 from cervical mucus and ascites fluid and characterization of six new antibodies. Third report from the ISOBM TD-1 workshop.
    Tumour Biol. 23: 303-14.
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