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You are here:Home » Molecular Biology » MB-Cancer Markers » CA125 Cancer Antigen (Ovarian Cancer), Low Cross Reactivity, Calibrator Grade

CA125 Cancer Antigen (Ovarian Cancer), Low Cross Reactivity, Calibrator Grade


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Catalog #C0050-12C
According to the ISOBM-TD-1 workshop, CA125 contains three antigenic domains A-domain (Oc125), B-domain (M11), C-Domain (Ov197). The CA-125 antigen is present on a mucin-like glycoprotein of >200kD and is detectable on the apical surface of normal endometrium and endocervix.
Storage and StabilityMay be stored at 4°C for short-term only. For long-term storage, aliquot to avoid repeated freezing and thawing and freeze at -20°C. Stability tested one week at 35°C, recovery confirmed within +10% in the range of 50 Units/ml. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
SourceHuman pleural fluids
67U/ml (<1%), CA19-9 (Elecsys 19-9)
971U/ml (1%), CA15-3 (Elecsys 15-3)
Specific Protein95,727U/ml
(Elecsys CA-125 Assay)
Total Protein
2.6 OD280nm Units
FormSupplied as a liquid in PBS, pH 7.4, 0.1% sodium azide.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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