Carcinoembryonic Antigen (Carcinoembryonic Antigen-related Cell Adhesion Molecule 5, CEACAM5, CD66, Biliary GlycoProtein, BGP-1, CEA)

Antibodies / Antibodies-Cancer Markers

-20°C

Supplied as a liquid in 10mM PBS, 0.05% BSA, 0.05% sodium azide. Also available without BSA and azide, see 172039-AF.

Human recombinant CEA protein. Cellular Localization: Cytoplasmic and luminal surface

This antibody recognizes proteins of 80-200kD, identified as different members of CEA family. CEA is synthesized during development in the fetal gut and is re-expressed in increased amounts in intestinal carcinomas and several other tumors. This MAb reacts with nonspecific cross-reacting antigen (NCA) and shows a cross-reaction with human polymorphonuclear leucocytes. It shows no reaction with a variety of normal tissues and is suitable for staining of formalin/paraffin tissues. CEA is not found in benign glands, stroma, or malignant prostatic cells. Antibody to CEA is useful in detecting early foci of gastric carcinoma and in distinguishing pulmonary adenocarcinomas (60-70% are CEA+) from pleural mesotheliomas (rarely or weakly CEA+). Anti-CEA positivity is seen in adenocarcinomas from the lung, colon, stomach, esophagus, pancreas, gallbadder, urachus, salivary gland, ovary, and endocervix.

Applications:
Suitable for use in Immunofluorescence, Flow Cytometry, Western Blot, Immunoprecipitation and Immunohistochemistry. Other applications not tested.

Recommended Dilution:
Flow Cytometry: 0.5-1ug/million cells
Immunofluorescence: 0.5-1ug/ml
Immunoprecipitation: 1-2ug/500ug protein
Western Blot: 0.5-1ug/ml
Immunohistochemistry (Frozen & Formalin-fixed): 0.5-1ug/ml for 30 min at RT
(Staining of formalin-fixed tissues requires boiling tissue sections in 10mM Citrate Buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes)
Optimal dilutions to be determined by the researcher.

Positive Control:
MCF7 or 293T cells. Colon carcinoma

Storage and Stability:
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.