CA19-9/Sialyl Lewis A Antibody (121SLE) - Azide and BSA Free

Unconjugated

Monoclonal Mouse IgM Kappa Clone # 121SLE

Azide and BSA Free

1 mg/ml

Precipitin lines obtained after immuno-diffusion using MAb 116-NS-19-9 and mucins isolated from an ovarian cyst of a Lewis A+B- patient (0Le).

CA19-9, a carbohydrate epitope expressed on a high MW (400kDa) mucin glycoprotein, is a sialyl Lewisa structure which is synthesized from type 1 blood group precursor chains and is present in individuals expressing the Lewisa and/or Lewisb blood group antigens. In normal tissues, sialyl Lewisa antigen is present in ductal epithelium of the breast, kidney, salivary gland, and sweat glands. Its expression is greatly enhanced in serum as well as in the majority of tumor cells in gastrointestinal (GI) carcinomas, including adenocarcinomas of the stomach, intestine, and pancreas. Preoperative elevated CA19-9 levels in patients with stage I pancreatic carcinoma decrease to normal values following surgery. When used serially, CA19-9 can predict recurrence of disease prior to radiographic or clinical findings. This monoclonal antibody is excellent for staining of formalin-fixed, paraffin-embedded tissues.

GI Tumor Marker

Monoclonal

Mouse

IgM Kappa

400 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

1.0 mg/ml of antibody purified from Bioreactor Concentrate. Prepared in 10mM PBS WITHOUT BSA. Also available at 200 ug/ml WITH BSA & azide (NBP2-45188).

Antibody with azide - store at 2 to 8C. Antibody without azide - store at -20 to -80C.

Protein L or PEG purified

10 mM PBS

Azide and BSA Free

No Preservative

1 mg/ml

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Store at -20 to -80C. Avoid freeze-thaw cycles.