CA19-9/Sialyl Lewis A Antibody (SPM588)

Unconjugated

Monoclonal Mouse IgM Kappa Clone # SPM588

0.2 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).

Cytoplasmic

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 superb 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.

200ug/ml of antibody purified from Bioreactor Concentrate. Prepared in 10 mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA at 1.0 mg/ml. (NBP3-11589)

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

Protein L or PEG purified

10 mM PBS with 0.05% BSA

0.05% Sodium Azide

0.2 mg/ml

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

Store at 4C.