|Application ||IHC, IF|
|Other Accession||2525, 169238|
|Reactivity||Human, Guinea Pig|
|Isotype||Mouse / IgG1, kappa|
|Clone Names||2-25LE; same as LWB01|
|Other Names||Galactoside 3(4)-L-fucosyltransferase, 18.104.22.168, Blood group Lewis alpha-4-fucosyltransferase, Lewis FT, Fucosyltransferase 3, Fucosyltransferase III, FucT-III, FUT3, FT3B, LE|
|Storage||Store at 2 to 8°C.Antibody is stable for 24 months.|
|Precautions||Blood Group Antigen Lewis B Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||May catalyze alpha-1,3 and alpha-1,4 glycosidic linkages involved in the expression of Vim-2, Lewis A, Lewis B, sialyl Lewis X and Lewis X/SSEA-1 antigens. May be involved in blood group Lewis determination; Lewis-positive (Le(+)) individuals have an active enzyme while Lewis-negative (Le(-)) individuals have an inactive enzyme. Also acts on the corresponding 1,4-galactosyl derivative, forming 1,3-L-fucosyl links.|
|Cellular Location||Golgi apparatus, Golgi stack membrane; Single-pass type II membrane protein. Note=Membrane-bound form in trans cisternae of Golgi|
|Tissue Location||Highly expressed in stomach, colon, small intestine, lung and kidney and to a lesser extent in salivary gland, bladder, uterus and liver|
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Provided below are standard protocols that you may find useful for product applications.
The Lewis histo-blood group system comprises a set of fucosylated glycosphingolipids that are synthesized by exocrine epithelial cells and circulate in body fluids. The glycosphingolipids function in embryogenesis, tissue differentiation, tumor metastasis, inflammation, and bacterial adhesion. They are secondarily absorbed to red blood cells giving rise to their Lewis phenotype. This gene is a member of the fucosyltransferase family, which catalyzes the addition of fucose to precursor polysaccharides in the last step of Lewis antigen biosynthesis. It encodes an enzyme with alpha(1,3)-fucosyltransferase and alpha(1,4)-fucosyltransferase activities. Lewis blood group antigens are carbohydrate moieties structurally integrated in mucous secretions. Lewis antigen system alterations have been described in gastric carcinoma and associated lesions. Anomalous expression of Lewis B antigen has been found in some non-secretory gastric carcinomas and colorectal cancers.
Richman, P.I. et al. 1987. Monoclonal antibodies to human colorectal epithelium: markers for differentiation and tumour characterization. Int. J. Cancer. 39: 317-328. Rouger, P.h., et al, eds. 1987. Proceedings of the first international work- shop on monoclonal antibodies against human red blood cells and related antigens (Paris, 1987). Blood Transfusion Immunohaematology 30: 353- 720. Bara, J. et al. 1988. Immunochemical characterization of mucins. Polypeptide (M1) and polysaccharide (A and Leb) antigens. Biochem. J. 254: 185-193. Torrado J, Correa P, Ruiz B, Bernardi P, Zavala D, Bara J. Lewis antigen alterations in gastric cancer precursors. Gastroenterology. 1992 Feb;102(2):424-30.Creuzot-Garcher C, Guerzider V, Assem M, Bron AM, Delannoy P, Bara. Alteration of sialyl Lewis epitope expression in pterygium. J.Invest Ophthalmol Vis Sci. 1999 Jul;40(8):1631
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